Federation Members: Difference between revisions
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Listed in order of joining: | * Member states of the [[United Federation of Planets]] | ||
** Listed in order of joining | |||
** List does not include [[Federation protectorate]]s | |||
* Known membership counts | |||
** 10 member states as of March 2166 (ENT Novel: ''Patterns of Interference'') | |||
** 82 member states as of 2248 (DIS Novel: ''The Way to the Stars'') | |||
** Over 100 member states as of January 2266 (VAN Novel: ''Reap the Whirlwind'') | |||
** Over 150 member states as of October 2373 (''First Contact'') | |||
** 154 member states as of May 2380 (Novel: ''Articles of the Federation'') | |||
** 155 member states as of December 2380 (Novel: ''Articles of the Federation'') | |||
==Members== | |||
# [[United Earth]] | # [[United Earth]] | ||
#* 1st member | |||
#* Joined: August 12, 2161 | #* Joined: August 12, 2161 | ||
# [[Confederacy of Vulcan]] | # [[Confederacy of Vulcan]] | ||
#* 2nd member | |||
#* Joined: August 12, 2161 | #* Joined: August 12, 2161 | ||
# [[Andorian Empire]] | # [[Andorian Empire]] | ||
#* 3rd member | |||
#* Joined: August 12, 2161 | #* Joined: August 12, 2161 | ||
#* Withdrew: 2382 | #* Withdrew: 2382 | ||
#* Rejoined: 2385 | #* Rejoined: 2385 | ||
# [[United Planets of Tellar]] | # [[United Planets of Tellar]] | ||
#* 4th member | |||
#* Joined: August 12, 2161 | #* Joined: August 12, 2161 | ||
# [[Alpha Centauri Concordium]] | # [[Alpha Centauri Concordium]] | ||
#* 5th member | |||
#* Joined: August 12, 2161 | #* Joined: August 12, 2161 | ||
# [[Confederated Martian Colonies]] | # [[Confederated Martian Colonies]] | ||
#* 6th member (ENT Novel: ''A Choice of Futures'') | |||
#* Joined: 2162 (ENT Novel: ''A Choice of Futures'') | #* Joined: 2162 (ENT Novel: ''A Choice of Futures'') | ||
# [[Vega Colony]] | # [[Vega Colony]] | ||
#* 7th member (ENT Novel: ''Tower of Babel'') | |||
#* Joined: 2164 (ENT Novel: ''Tower of Babel'') | #* Joined: 2164 (ENT Novel: ''Tower of Babel'') | ||
#* Former United Earth colony | #* Former United Earth colony | ||
# [[United Worlds and Colonies of Rigel]] | # [[United Worlds and Colonies of Rigel]] | ||
#* 8th member (ENT Novel: ''Tower of Babel'') | |||
#* Joined: 2164 (ENT Novel: ''Tower of Babel'') | #* Joined: 2164 (ENT Novel: ''Tower of Babel'') | ||
# [[Arken II]] | # [[Arken II]] | ||
#* 9th member (ENT Novel: ''Uncertain Logic'') | |||
#* Joined: Early 2165 (ENT Novel: ''Uncertain Logic'') | #* Joined: Early 2165 (ENT Novel: ''Uncertain Logic'') | ||
#* Former Andorian Empire subject world | #* Former Andorian Empire subject world | ||
# [[Ithen]] | # [[Ithen]] | ||
#* 10th member (ENT Novel: ''Patterns of Interference'') | |||
#* Joined: October 2165 (ENT Novel: ''Patterns of Interference'') | #* Joined: October 2165 (ENT Novel: ''Patterns of Interference'') | ||
# [[Risian Hedony]] | # [[Risian Hedony]] | ||
#* Joined: late 22nd Century | #* Joined: late 22nd Century | ||
# [[Camor V]] | # [[Camor V]] | ||
#* Joined: By 2200s (TNG Novel: ''Genesis Wave, Part I'') | #* Joined: By 2200s (TNG Novel: ''Genesis Wave, Part I'') | ||
# [[Deltan Union]] | # [[Deltan Union]] | ||
#* Joined: By 2200s (TNG Novel: ''Genesis Wave, Part I'') | #* Joined: By 2200s (TNG Novel: ''Genesis Wave, Part I'') | ||
# | # [[Trillius Prime]] | ||
#* Joined: By 2230s (Novel: ''Articles of the Federation'') | |||
#* Joined: By | |||
# [[Argelius]] | # [[Argelius]] | ||
#* Joined: 2240s/2250s (TOS Novel: ''Burning Dreams'') | #* Joined: 2240s/2250s (TOS Novel: ''Burning Dreams'') | ||
#* | # [[Vobilin]] | ||
#* Joined: By 2245 (DS9 Short Story: "Old Souls") | |||
# [[Arixus]] | |||
#* Joined: By 2248 (DIS Novel: ''The Way to the Stars'') | |||
# [[Bolias]] | |||
#* Joined: By 2248 (DIS Novel: ''The Way to the Stars'') | |||
# [[Elisurian homeworld]] | |||
#* Joined: By 2248 (DIS Novel: ''The Way to the Stars'') | |||
# [[Ri'tis]] | |||
#* Joined: By 2248 (DIS Novel: ''The Way to the Stars'') | |||
# [[Valzhan (planet)|Valzhan]] | # [[Valzhan (planet)|Valzhan]] | ||
#* Joined: By mid-23rd Century | #* Joined: By mid-23rd Century | ||
# [[Axanar (planet)|Axanar]] | # [[Axanar (planet)|Axanar]] | ||
#* Joined: After 2251, by 2260s | #* Joined: After 2251, by 2260s | ||
# | # [[Regulus]] | ||
# [[ | #* Joined: By 2254 (TOS: "The Cage") | ||
# [[Makus III]] | |||
#* Joined: By 2262 (TOS Novel: ''The Captain's Oath'') | |||
# [[Altair Colony]] | |||
#* Joined: By 2260s | #* Joined: By 2260s | ||
#* Former United Earth colony | #* Former United Earth colony | ||
# [[Arcturus]] | # [[Arcturus]] | ||
#* Joined: By 2260s | #* Joined: By 2260s | ||
# [[Aurelia]] | # [[Aurelia]] | ||
#* Joined: By 2260s | #* Joined: By 2260s | ||
# | # [[Cygnet XIV]] | ||
#* Joined: By 2260s (TOS Novel: ''The Captain's Oath'') | |||
#* Joined: By 2260s | |||
# [[Denobula]] | # [[Denobula]] | ||
#* Joined: By 2260s | #* Joined: By 2260s | ||
# [[Izar]] | # [[Izar]] | ||
#* Joined: By 2260s | #* Joined: By 2260s | ||
#* Former United Earth colony | #* Former United Earth colony | ||
# [[Plutocracy of Ardana]] | |||
# [[ | |||
#* Joined: By 2260s | #* Joined: By 2260s | ||
#* Withdrew: 2269 | |||
#* Rejoined: By 2370s | |||
# [[Ramatis III]] | # [[Ramatis III]] | ||
#* Joined: By 2260s | #* Joined: By 2260s | ||
# [[Regulus (distant)]] | |||
# [[Regulus (distant) | #* Joined: By 2260s (DIS Novel: ''Distant Measures'') | ||
#* Joined: By 2260s | |||
# [[Sauria]] | # [[Sauria]] | ||
#* Joined: By 2260s | #* Joined: By 2260s | ||
# [[Scoridia]] | # [[Scoridia]] | ||
#* Joined: By 2260s | #* Joined: By 2260s | ||
# [[Sulamid (planet)|Sulamid]] | # [[Sulamid (planet)|Sulamid]] | ||
#* Joined: By 2260s | #* Joined: By 2260s | ||
# | # [[Terra Nova]] | ||
#* Joined: By 2260s | |||
# [[Tiburon]] | # [[Tiburon]] | ||
#* Joined: By 2260s | #* Joined: By 2260s | ||
#* | # [[Aulac]] | ||
#* Joined: Mid-2260s (TOS Novel: ''The Captain's Oath'') | |||
# [[Alpha Proxima II]] | |||
#* Joined: By 2266 (BatB Novel: ''The First Artifact'') | |||
#* Former United Earth colony (BatB Novel: ''The First Artifact'') | |||
# [[People's Republic of Coridan]] | # [[People's Republic of Coridan]] | ||
#* Joined: 2267 | #* Joined: 2267 (TOS: "Journey to Babel") | ||
# [[Janus VI]] | # [[Janus VI]] | ||
#* Joined: After 2267 | #* Joined: After 2267 | ||
# | # [[Cait]] | ||
#* Joined: By 2269 | |||
#* Irregular participation | |||
# [[Aaamazzara]] | # [[Aaamazzara]] | ||
#* Joined: By 2270s | #* Joined: By 2270s | ||
# | # [[Betelgeusian Argosies]] | ||
#* Joined: By 2270s | #* Joined: By 2270s | ||
# [[Kazar]] | # [[Kazar]] | ||
#* Joined: By 2270s | #* Joined: By 2270s | ||
# [[Rhaandarel]] | # [[Rhaandarel]] | ||
#* Joined: By 2270s | #* Joined: By 2270s | ||
# [[Zaranai]] | # [[Zaranai]] | ||
#* Joined: By 2270s | #* Joined: By 2270s | ||
#* | # [[Lorina]] | ||
# [[ | #* Joined: After 2273 (TOS Novel: ''Ex Machina'') | ||
# [[Delta Sigma IV]] | |||
#* Joined: 2278 (TNG Novel: ''A Time to Love'') | |||
#** ''2370s per ''Articles of the Federation'', but conflicts with significant plot points in above'' | |||
# [[Efros Delta]] | |||
#* Joined: By 2280s | #* Joined: By 2280s | ||
# [[Kashet]] | # [[Kashet]] | ||
#* Joined: By 2280s | #* Joined: By 2280s | ||
# [[Kyppr]] | # [[Kyppr]] | ||
#* Joined: By 2280s (VOY Novel: ''Acts of Contrition'') | #* Joined: By 2280s (VOY Novel: ''Acts of Contrition'') | ||
# [[Pacifica]] | # [[Pacifica]] | ||
#* Joined: By 2280s (implicit by TNG Novel: ''Genesis Wave, Part I'') | #* Joined: By 2280s (implicit by TNG Novel: ''Genesis Wave, Part I'') | ||
# [[Huan]] | # [[Huan]] | ||
#* Joined: 2293 | #* Joined: 2293 | ||
# [[Betazed]] | # [[Betazed]] | ||
#* Joined: By 2300s (TLE Novel: ''Cast No Shadow'') | #* Joined: By 2300s (TLE Novel: ''Cast No Shadow'') | ||
# [[Vestios]] | # [[Vestios]] | ||
#* Joined: 2310 (TOS Novel: ''Burning Dreams'') | #* Joined: 2310 (TOS Novel: ''Burning Dreams'') | ||
# [[Beta Antares IV]] | # [[Beta Antares IV]] | ||
#* Joined: By 2311 | #* Joined: By 2311 | ||
# [[Lorillia]] | # [[Lorillia]] | ||
#* Joined: After 2311, By 2381 | #* Joined: After 2311, By 2381 | ||
# [[Deneva]] | # [[Deneva]] | ||
#* Joined: By early-24th Century | #* Joined: By early-24th Century | ||
#* Former United Earth colony | #* Former United Earth colony | ||
# [[Gnala]] | # [[Gnala]] | ||
#* Joined: By early-24th Century | #* Joined: By early-24th Century | ||
# [[Pythagos Clans]] | # [[Pythagos Clans]] | ||
#* Joined: By early-24th Century | #* Joined: By early-24th Century | ||
# [[Tandar Prime]] | # [[Tandar Prime]] | ||
#* Joined: By 2320s | #* Joined: By 2320s | ||
# [[Zalda]] | # [[Zalda]] | ||
#* Joined: 2330s-2340s | #* Joined: 2330s-2340s | ||
# [[Alonis (planet)|Alonis]] | # [[Alonis (planet)|Alonis]] | ||
#* Joined: | #* Joined: c.2335 | ||
# | # [[Kerovi]] | ||
#* Joined: c.2340 | |||
# [[Oriki (planet)|Oriki]] | # [[Oriki (planet)|Oriki]] | ||
#* Joined: 2340s-2350s | #* Joined: 2340s-2350s | ||
# | # [[Penzatti (planet)|Penzatti]] | ||
#* Joined: Late 2340s (TNG Novel: ''Vendetta'') | |||
#* Rendered uninhabitable October 2367 by [[Borg]] attack; survivors relocated (TNG Novel: ''Vendetta'') | |||
# [[Candelar IV]] | # [[Candelar IV]] | ||
#* Joined: 2350s | #* Joined: 2350s | ||
# | # [[Berellian homeworld]] | ||
#* Joined: By mid-24th Century (TNG: "Redemption II"; Novel: ''Articles of the Federation'') | |||
# [[Cestus III]] | # [[Cestus III]] | ||
#* Joined: By mid-24th Century | #* Joined: By mid-24th Century | ||
Line 208: | Line 180: | ||
# [[Dedderei]] | # [[Dedderei]] | ||
#* Joined: By mid-24th Century | #* Joined: By mid-24th Century | ||
# [[Elas]] | # [[Elas]] | ||
#* Joined: By mid-24th Century | #* Joined: By mid-24th Century | ||
# [[Gemworld]] | # [[Gemworld]] | ||
#* Joined: By mid-24th Century | #* Joined: By mid-24th Century | ||
# [[Grazer]] | # [[Grazer]] | ||
#* Joined: By mid-24th Century | #* Joined: By mid-24th Century | ||
# | # [[Guidon Pontificate]] | ||
#* Joined: By mid-24th Century | |||
# [[Hermat Directorate]] | # [[Hermat Directorate]] | ||
#* Joined: By mid-24th Century | #* Joined: By mid-24th Century | ||
# | # [[Kostolain]] | ||
#* | #* Joined: By mid-24th Century | ||
# [[Magna Roma]] | |||
#* Joined: By mid-24th Century | |||
# [[Ochat]] | # [[Ochat]] | ||
#* Joined: By mid-24th Century | #* Joined: By mid-24th Century | ||
# [[Pandril]] | # [[Pandril]] | ||
#* Joined: By mid-24th Century | #* Joined: By mid-24th Century | ||
# [[Peliar Zel]] | # [[Peliar Zel]] | ||
#* Joined: By mid-24th Century | #* Joined: By mid-24th Century | ||
# [[Selene]] | # [[Selene]] | ||
#* Joined: By mid-24th Century | #* Joined: By mid-24th Century | ||
# [[Sigma Iotia II]] | # [[Sigma Iotia II]] | ||
#* Joined: By mid-24th Century | #* Joined: By mid-24th Century | ||
# [[Tessen III]] | # [[Tessen III]] | ||
#* Joined: By mid-24th Century | #* Joined: By mid-24th Century | ||
# [[Troyius]] | # [[Troyius]] | ||
#* Joined: By mid-24th Century | #* Joined: By mid-24th Century | ||
# [[Xindi Diaspora]] | # [[Xindi Diaspora]] | ||
#* Joined: By mid-24th Century | #* Joined: By mid-24th Century | ||
# | # [[Danteri Empire]] | ||
#* | #* Joined: After c.2353, by 2373 (NF Novel: ''House of Cards'') | ||
# [[Pahkwa]] | # [[Pahkwa]] | ||
#* Joined: 2360 | #* Joined: 2360 | ||
# | # [[Nasat (planet)|Nasat]] | ||
#* Joined: By 2369 (SCE Short Story: "Balance of Nature") | |||
# [[Bynaus]] | # [[Bynaus]] | ||
#* Joined: After 2364, | #* Joined: After 2364, by 2374 (TNG: "11001001"; SCE Short Story: "10 is Better Than 01") | ||
# [[Benzar]] | # [[Benzar]] | ||
#* Joined: After 2365, by 2374 | #* Joined: After 2365, by 2374 (TNG: "A Matter of Honor"; DS9: "The Reckoning"; Novel: ''Articles of the Federation'') | ||
# | # [[Skorr (planet)|Skorr]] | ||
# [[ | #* Joined: After 2269, by 2376 (TAS: "The Jihad"; DS9 Novel: ''Mission Gamma: Twilight'') | ||
#* Joined: | # [[Deneb IV]] | ||
#* Joined: After 2364, by 2378 (TNG: "Encounter at Farpoint"; TNG Novel: ''A Time to Love'', ''A Time to Hate'') | |||
# [[Lendrin]] | # [[Lendrin]] | ||
#* Joined: After 2371, by 2378 | #* Joined: After 2371, by 2378 | ||
#* | # [[Lembatta Prime]] | ||
#* Joined: By 2373 (DS9: "Nor the Battle To the Strong"; Novel: ''Articles of the Federation'') | |||
# [[Andros III]] | # [[Andros III]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Antede III]] | # [[Antede III]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Arbaza]] | # [[Arbaza]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Asario]] | # [[Asario]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Atrea IV]] | # [[Atrea IV]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Bilana III]] | # [[Bilana III]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# | # [[Bre'el IV]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Caldos II]] | # [[Caldos II]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
Line 292: | Line 248: | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
#* Former Federation colony | #* Former Federation colony | ||
# [[Delb II]] | # [[Delb II]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Gallamite homeworld]] | |||
# [[Gallamite]] | |||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Grilasdixraksirvek]] | # [[Grilasdixraksirvek]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Hekaras II]] | # [[Hekaras II]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Icor IX]] | # [[Icor IX]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Inferna Prime]] | # [[Inferna Prime]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Ktar]] | # [[Ktar]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Meldrar I]] | # [[Meldrar I]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Napea]] | # [[Napea]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# | # [[Pangea]] | ||
#* Joined: By late-24th Century (Novel: ''Articles of the Federation'') | |||
#* Joined: By late-24th Century | |||
# [[Parnasi]] | # [[Parnasi]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Pentam V]] | # [[Pentam V]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# | # [[Taurus III]] | ||
#* Joined: By late-24th Century (Novel: ''Articles of the Federation'') | |||
# [[Triex]] | # [[Triex]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Tyrellia]] | # [[Tyrellia]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# | # [[Visalayan]] | ||
#* Joined: By late-24th Century (TNG Novel: ''A Time to Die'') | |||
# [[Ysa]] | # [[Ysa]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Zakdorn (planet)|Zakdorn]] | # [[Zakdorn (planet)|Zakdorn]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Zanri]] | # [[Zanri]] | ||
#* Joined: By late-24th Century | #* Joined: By late-24th Century | ||
# [[Damiano]] | |||
#* 149th member | |||
#* Joined: 2371 (TNG Comic: "Perchance to Dream") | |||
#** Formerly [[Federation protectorate]] | |||
# [[Cairn (planet)|Cairn]] | |||
#* 150th member | |||
#* Joined: Early 2370s (Novel: ''Articles of the Federation'') | |||
# [[T'hirada]] | |||
#* 151st member | |||
#* Joined: 2373 (TNG Novel: ''Resistance'') | |||
# [[Ona]] | |||
#* 152nd member | |||
#** ''Over 150 members by October 2373 (''Star Trek: First Contact'')'' | |||
#* Joined: Mid-2373 (TNG Novel: ''A Time to Be Born'', ''A Time to Die'') | |||
# [[Third Republic of Bajor]] | |||
#* 153rd member | |||
#* Joined: September 29, 2376 (DS9 Novel: ''Unity'') | |||
# [[Evora]] | # [[Evora]] | ||
#* | #* 154th member | ||
#* | #* Joined: 2377 (''Star Trek: Insurrection''; SCE Short Story: "Past Life"; Novel: ''Articles of the Federation'') | ||
# [[Koa (planet)|Koa]] | |||
# [[Koa]] | |||
#* 155th member (Novel: ''Articles of the Federation'') | #* 155th member (Novel: ''Articles of the Federation'') | ||
#* Joined: 2380 | #* Joined: Late December 2380 (Novel: ''Articles of the Federation'') | ||
[[Category:Federation]] | [[Category:Federation]] |
Latest revision as of 05:28, 14 January 2022
- Member states of the United Federation of Planets
- Listed in order of joining
- List does not include Federation protectorates
- Known membership counts
- 10 member states as of March 2166 (ENT Novel: Patterns of Interference)
- 82 member states as of 2248 (DIS Novel: The Way to the Stars)
- Over 100 member states as of January 2266 (VAN Novel: Reap the Whirlwind)
- Over 150 member states as of October 2373 (First Contact)
- 154 member states as of May 2380 (Novel: Articles of the Federation)
- 155 member states as of December 2380 (Novel: Articles of the Federation)
Members
- United Earth
- 1st member
- Joined: August 12, 2161
- Confederacy of Vulcan
- 2nd member
- Joined: August 12, 2161
- Andorian Empire
- 3rd member
- Joined: August 12, 2161
- Withdrew: 2382
- Rejoined: 2385
- United Planets of Tellar
- 4th member
- Joined: August 12, 2161
- Alpha Centauri Concordium
- 5th member
- Joined: August 12, 2161
- Confederated Martian Colonies
- 6th member (ENT Novel: A Choice of Futures)
- Joined: 2162 (ENT Novel: A Choice of Futures)
- Vega Colony
- 7th member (ENT Novel: Tower of Babel)
- Joined: 2164 (ENT Novel: Tower of Babel)
- Former United Earth colony
- United Worlds and Colonies of Rigel
- 8th member (ENT Novel: Tower of Babel)
- Joined: 2164 (ENT Novel: Tower of Babel)
- Arken II
- 9th member (ENT Novel: Uncertain Logic)
- Joined: Early 2165 (ENT Novel: Uncertain Logic)
- Former Andorian Empire subject world
- Ithen
- 10th member (ENT Novel: Patterns of Interference)
- Joined: October 2165 (ENT Novel: Patterns of Interference)
- Risian Hedony
- Joined: late 22nd Century
- Camor V
- Joined: By 2200s (TNG Novel: Genesis Wave, Part I)
- Deltan Union
- Joined: By 2200s (TNG Novel: Genesis Wave, Part I)
- Trillius Prime
- Joined: By 2230s (Novel: Articles of the Federation)
- Argelius
- Joined: 2240s/2250s (TOS Novel: Burning Dreams)
- Vobilin
- Joined: By 2245 (DS9 Short Story: "Old Souls")
- Arixus
- Joined: By 2248 (DIS Novel: The Way to the Stars)
- Bolias
- Joined: By 2248 (DIS Novel: The Way to the Stars)
- Elisurian homeworld
- Joined: By 2248 (DIS Novel: The Way to the Stars)
- Ri'tis
- Joined: By 2248 (DIS Novel: The Way to the Stars)
- Valzhan
- Joined: By mid-23rd Century
- Axanar
- Joined: After 2251, by 2260s
- Regulus
- Joined: By 2254 (TOS: "The Cage")
- Makus III
- Joined: By 2262 (TOS Novel: The Captain's Oath)
- Altair Colony
- Joined: By 2260s
- Former United Earth colony
- Arcturus
- Joined: By 2260s
- Aurelia
- Joined: By 2260s
- Cygnet XIV
- Joined: By 2260s (TOS Novel: The Captain's Oath)
- Denobula
- Joined: By 2260s
- Izar
- Joined: By 2260s
- Former United Earth colony
- Plutocracy of Ardana
- Joined: By 2260s
- Withdrew: 2269
- Rejoined: By 2370s
- Ramatis III
- Joined: By 2260s
- Regulus (distant)
- Joined: By 2260s (DIS Novel: Distant Measures)
- Sauria
- Joined: By 2260s
- Scoridia
- Joined: By 2260s
- Sulamid
- Joined: By 2260s
- Terra Nova
- Joined: By 2260s
- Tiburon
- Joined: By 2260s
- Aulac
- Joined: Mid-2260s (TOS Novel: The Captain's Oath)
- Alpha Proxima II
- Joined: By 2266 (BatB Novel: The First Artifact)
- Former United Earth colony (BatB Novel: The First Artifact)
- People's Republic of Coridan
- Joined: 2267 (TOS: "Journey to Babel")
- Janus VI
- Joined: After 2267
- Cait
- Joined: By 2269
- Irregular participation
- Aaamazzara
- Joined: By 2270s
- Betelgeusian Argosies
- Joined: By 2270s
- Kazar
- Joined: By 2270s
- Rhaandarel
- Joined: By 2270s
- Zaranai
- Joined: By 2270s
- Lorina
- Joined: After 2273 (TOS Novel: Ex Machina)
- Delta Sigma IV
- Joined: 2278 (TNG Novel: A Time to Love)
- 2370s per Articles of the Federation, but conflicts with significant plot points in above
- Joined: 2278 (TNG Novel: A Time to Love)
- Efros Delta
- Joined: By 2280s
- Kashet
- Joined: By 2280s
- Kyppr
- Joined: By 2280s (VOY Novel: Acts of Contrition)
- Pacifica
- Joined: By 2280s (implicit by TNG Novel: Genesis Wave, Part I)
- Huan
- Joined: 2293
- Betazed
- Joined: By 2300s (TLE Novel: Cast No Shadow)
- Vestios
- Joined: 2310 (TOS Novel: Burning Dreams)
- Beta Antares IV
- Joined: By 2311
- Lorillia
- Joined: After 2311, By 2381
- Deneva
- Joined: By early-24th Century
- Former United Earth colony
- Gnala
- Joined: By early-24th Century
- Pythagos Clans
- Joined: By early-24th Century
- Tandar Prime
- Joined: By 2320s
- Zalda
- Joined: 2330s-2340s
- Alonis
- Joined: c.2335
- Kerovi
- Joined: c.2340
- Oriki
- Joined: 2340s-2350s
- Penzatti
- Joined: Late 2340s (TNG Novel: Vendetta)
- Rendered uninhabitable October 2367 by Borg attack; survivors relocated (TNG Novel: Vendetta)
- Candelar IV
- Joined: 2350s
- Berellian homeworld
- Joined: By mid-24th Century (TNG: "Redemption II"; Novel: Articles of the Federation)
- Cestus III
- Joined: By mid-24th Century
- Former Federation colony
- Dedderei
- Joined: By mid-24th Century
- Elas
- Joined: By mid-24th Century
- Gemworld
- Joined: By mid-24th Century
- Grazer
- Joined: By mid-24th Century
- Guidon Pontificate
- Joined: By mid-24th Century
- Hermat Directorate
- Joined: By mid-24th Century
- Kostolain
- Joined: By mid-24th Century
- Magna Roma
- Joined: By mid-24th Century
- Ochat
- Joined: By mid-24th Century
- Pandril
- Joined: By mid-24th Century
- Peliar Zel
- Joined: By mid-24th Century
- Selene
- Joined: By mid-24th Century
- Sigma Iotia II
- Joined: By mid-24th Century
- Tessen III
- Joined: By mid-24th Century
- Troyius
- Joined: By mid-24th Century
- Xindi Diaspora
- Joined: By mid-24th Century
- Danteri Empire
- Joined: After c.2353, by 2373 (NF Novel: House of Cards)
- Pahkwa
- Joined: 2360
- Nasat
- Joined: By 2369 (SCE Short Story: "Balance of Nature")
- Bynaus
- Joined: After 2364, by 2374 (TNG: "11001001"; SCE Short Story: "10 is Better Than 01")
- Benzar
- Joined: After 2365, by 2374 (TNG: "A Matter of Honor"; DS9: "The Reckoning"; Novel: Articles of the Federation)
- Skorr
- Joined: After 2269, by 2376 (TAS: "The Jihad"; DS9 Novel: Mission Gamma: Twilight)
- Deneb IV
- Joined: After 2364, by 2378 (TNG: "Encounter at Farpoint"; TNG Novel: A Time to Love, A Time to Hate)
- Lendrin
- Joined: After 2371, by 2378
- Lembatta Prime
- Joined: By 2373 (DS9: "Nor the Battle To the Strong"; Novel: Articles of the Federation)
- Andros III
- Joined: By late-24th Century
- Antede III
- Joined: By late-24th Century
- Arbaza
- Joined: By late-24th Century
- Asario
- Joined: By late-24th Century
- Atrea IV
- Joined: By late-24th Century
- Bilana III
- Joined: By late-24th Century
- Bre'el IV
- Joined: By late-24th Century
- Caldos II
- Joined: By late-24th Century
- Former Federation colony
- Carnegie
- Joined: By late-24th Century
- Former Federation colony
- Delb II
- Joined: By late-24th Century
- Gallamite homeworld
- Joined: By late-24th Century
- Grilasdixraksirvek
- Joined: By late-24th Century
- Hekaras II
- Joined: By late-24th Century
- Icor IX
- Joined: By late-24th Century
- Inferna Prime
- Joined: By late-24th Century
- Ktar
- Joined: By late-24th Century
- Meldrar I
- Joined: By late-24th Century
- Napea
- Joined: By late-24th Century
- Pangea
- Joined: By late-24th Century (Novel: Articles of the Federation)
- Parnasi
- Joined: By late-24th Century
- Pentam V
- Joined: By late-24th Century
- Taurus III
- Joined: By late-24th Century (Novel: Articles of the Federation)
- Triex
- Joined: By late-24th Century
- Tyrellia
- Joined: By late-24th Century
- Visalayan
- Joined: By late-24th Century (TNG Novel: A Time to Die)
- Ysa
- Joined: By late-24th Century
- Zakdorn
- Joined: By late-24th Century
- Zanri
- Joined: By late-24th Century
- Damiano
- 149th member
- Joined: 2371 (TNG Comic: "Perchance to Dream")
- Formerly Federation protectorate
- Cairn
- 150th member
- Joined: Early 2370s (Novel: Articles of the Federation)
- T'hirada
- 151st member
- Joined: 2373 (TNG Novel: Resistance)
- Ona
- 152nd member
- Over 150 members by October 2373 (Star Trek: First Contact)
- Joined: Mid-2373 (TNG Novel: A Time to Be Born, A Time to Die)
- 152nd member
- Third Republic of Bajor
- 153rd member
- Joined: September 29, 2376 (DS9 Novel: Unity)
- Evora
- 154th member
- Joined: 2377 (Star Trek: Insurrection; SCE Short Story: "Past Life"; Novel: Articles of the Federation)
- Koa
- 155th member (Novel: Articles of the Federation)
- Joined: Late December 2380 (Novel: Articles of the Federation)