A production code is an identity for each and every Simpsons episodes assigned by the production team to help identify it from its respective season/episode number. Episodes are often broadcast by their production order i.e. in numerical order. This is a list of The Simpsons episodes by production order, along with their broadcast season/episode numbers, and their original broadcast dates.
For the list of episodes by date, see here and for the list of episodes in alphabetical order, see here.
The Simpsons uses the same production code format as other 20th Century Fox-produced shows. It has received three revisions over the show's run:[1]
The first, used before 1990, was formatted SSXX: SS denoting the randomly-chosen season identifier for any show, usually consisting of a number and letter, with XX being the order in which the episode was produced. Season 1 of The Simpsons was given the identification 7G, which was used as an in-joke by James L. Brooks by having Homer Simpson work in Sector 7G at the Springfield Nuclear Power Plant.
The second, used from 1990 until 1998, was formatted YSXX: Y was the identifier for the television season that it was produced for (i.e. 7 for the 1990-91 TV season until 5 for 1997-98), S being the letter given to the show in question (e.g. F for The Simpsons, X for The X-Files) and XX being the order in which the episode was produced. The Simpsons used this code format from Seasons 2 until 9, including Season 4's 9F being succeeded by Season 5's 1F. The number 6 was not used as this format was replaced after the digit 5 was available.
The third and most recent has been used since 1998. It is currently formatted as 0SSSXX, with 0 being the season identifier from 1 to Z (excluding I because it can be confused with numerical digits and U for unknown reasons), SSS is the three-letter identifier for the show in question (e.g. shows held over from the previous TV season had their existing identifier prefixed with "AB", meaning The Simpsons uses ABF) and XX being the order in which the episode was produced. The Simpsons started using this code at Season 10, so it was given the digit A. Regarding discrepancies, Season 18 used the letter J, following Season 17's H, which is also true for Seasons 22 and 23's N and P, and Seasons 26 and 27's T and V.
Season 24 additionally skipped the letter Q and instead used R. After Season 31 concluded with Z, the originally-unavailable Q was assigned to Season 32.
Season 33 has been assigned the originally-unavailable U.
Season 34 has been assigned the originally-unavailable O.
Season 35 has been given 35ABF as the production code.
The3G production code refers to the supplemental set of episodes produced within the 7th production season under Al Jean & Mike Reiss (previously showrunners for Seasons 3 and 4) as showrunners, despite that Bill Oakley & Josh Weinstein were the main showrunners of Seasons 7 and 8. Four episodes were produced from 3G01-04, "The Springfield Files", "Lisa's Sax", "Simpsoncalifragilisticexpiala(Annoyed Grunt)cious" and "Simpson Tide", respectively. 3G01 and 3G03 were both aired in Season 8 while 3G02 and 3G04 were both aired in Season 9.
'Holdovers are episodes that eventually air on a succeeding season that was produced within an earlier production season, e.g. Season 4 has the code 9F, but the two episodes at the start of the season use 8F as they were initially produced for Season 3. The 19th production season has the most number of holdovers, as nine episodes from the season aired during the 20th broadcast Season.
1ABX - Season 1[]
Main article: Season 17
Prod. Code
Episode No.
Airdate
Title
1ABX01
364 - 1709
December 18, 2005
"Simpsons Christmas Stories"
1ABX02
365 - 1708
December 11, 2005
"The Italian Bob"
1ABX03
368 - 1710
January 8, 2006
"Homer's Paternity Coot"
1ABX04
369 - 1711
January 29, 2006
"We're on the Road to D'oh-where"
1ABX05
370 - 1712
February 26, 2006
"My Fair Laddy"
1ABX06
371 - 1713
March 12, 2006
"The Seemingly Never-Ending Story"
1ABX07
372 - 1714
March 19, 2006
"Bart Has Two Mommies"
1ABX08
373 - 1715
March 26, 2006
"Homer Simpson, This is Your Wife"
1ABX09
374 - 1716
April 2, 2006
"Million-Dollar Abie"
1ABX10
375 - 1717
April 9, 2006
"Kiss Kiss Bang Bangalore"
1ABX11
376 - 1718
April 23, 2006
"The Wettest Stories Ever Told"
1ABX12
377 - 1719
April 30, 2006
"Girls Just Want to Have Sums"
1ABX13
378 - 1720
May 7, 2006
"Regarding Margie"
1ABX14
379 - 1721
May 14, 2006
"The Monkey Suit"
1ABX15
380 - 1801
September 10, 2006
"The Mook, the Chef, the Wife and Her Homer"
1ABX16
381 - 1722
May 21, 2006
"Marge and Homer Turn a Couple Play"
1ABX17
382 - 1804
November 5, 2006
"Treehouse of Horror XVII"
1ABX18
383 - 1802
September 17, 2006
"Jazzy and the Pussycats"
1ABX19
384 - 1806
November 19, 2006
"Moe'N'a Lisa"
1ABX20
385 - 1803
September 24, 2006
"Please Homer, Don't Hammer 'Em"
1ABX21
386 - 1805
November 12, 2006
"G.I. (Annoyed Grunt)"
1ABX22
387 - 1807
November 26, 2006
"Ice Cream of Margie (with the Light Blue Hair)"
2ABX - Season 2[]
Main article: Season 18
Prod. Code
Episode No.
Airdate
Title
2ABX01
388 - 1809
December 17, 2006
"Kill Gil, Volumes I & II"
2ABX02
389 - 1808
December 10, 2006
"The Haw-Hawed Couple"
2ABX03
390 - 1810
January 7, 2007
"The Wife Aquatic"
2ABX04
391 - 1812
February 11, 2007
"Little Big Girl"
2ABX05
392 - 1811
January 28, 2007
"Revenge is a Dish Best Served Three Times"
2ABX06
393 - 1816
March 25, 2007
"Homerazzi"
2ABX07
394 - 1813
February 18, 2007
"Springfield Up"
2ABX08
395 - 1815
March 11, 2007
"Rome-Old and Julie-Eh"
2ABX09
396 - 1814
March 4, 2007
"Yokel Chords"
2ABX10
397 - 1817
April 22, 2007
"Marge Gamer"
2ABX11
398 - 1818
April 29, 2007
"The Boys of Bummer"
2ABX12
399 - 1820
May 13, 2007
"Stop or My Dog Will Shoot!"
2ABX13
400 - 1819
May 6, 2007
"Crook and Ladder"
2ABX14
401 - 1821
May 20, 2007
"24 Minutes"
2ABX15
402 - 1822
May 20, 2007
"You Kent Always Say What You Want"
2ABX16
403 - 1905
November 4, 2007
"Treehouse of Horror XVIII"
2ABX17
404 - 1907
November 18, 2007
"Husbands and Knives"
2ABX18
405 - 1902
September 30, 2007
"The Homer of Seville"
2ABX19
406 - 1904
October 14, 2007
"I Don't Wanna Know Why the Caged Bird Sings"
2ABX20
407 - 1901
September 23, 2007
"He Loves to Fly and He D'ohs"
2ABX21
408 - 1903
October 7, 2007
"Midnight Towboy"
2ABX22
409 - 1906
November 11, 2007
"Little Orphan Millie"
3ABX - Season 3[]
Main article: Season 19
Prod. Code
Episode No.
Airdate
Title
3ABX01
408 - 1908
November 25, 2007
"Funeral for a Fiend"
3ABX02
409 - 1909
December 16, 2007
"Eternal Moonshine of the Simpson Mind"
3ABX03
410 - 1910
January 6, 2008
"E. Pluribus Wiggum"
3ABX04
411 - 1911
January 27, 2008
"That '90s Show"
3ABX05
412 - 1912
February 17, 2008
"Love, Springfieldian Style"
3ABX06
413 - 1913
March 2, 2008
"The Debarted"
3ABX07
414 - 1914
March 9, 2008
"Dial "N" for Nerder"
3ABX08
415 - 1915
March 30, 2008
"Smoke on the Daughter"
3ABX09
416 - 1916
April 13, 2008
"Papa Don't Leech"
3ABX10
417 - 1917
April 27, 2008
"Apocalypse Cow"
3ABX11
418 - 1918
May 4, 2008
"Any Given Sundance"
3ABX12
419 - 1919
May 11, 2008
"Mona Leaves-a"
3ABX13
420 - 1920
May 18, 2008
"All About Lisa"
3ABX14
421 - 2003
October 19, 2008
"Double, Double, Boy in Trouble"
3ABX15
422 - 2002
October 5, 2008
"Lost Verizon"
3ABX16
423 - 2004
November 2, 2008
"Treehouse of Horror XIX"
3ABX17
424 - 2001
September 28, 2008
"Sex, Pies, and Idiot Scrapes"
3ABX18
425 - 2005
November 9, 2008
"Dangerous Curves"
3ABX19
426 - 2006
November 16, 2008
"Homer and Lisa Exchange Cross Words"
3ABX20
427 - 2007
November 30, 2008
"Mypods and Boomsticks"
3ABX21
428 - 2008
December 7, 2008
"The Burns and the Bees"
3ABX22
429 - 2009
January 25, 2009
"Lisa the Drama Queen"
4ABX - Season 4[]
Main article: Season 20
Prod. Code
Episode No.
Airdate
Title
4ABX01
430 - 2010
February 15, 2009
"Take My Life, Please"
4ABX02
431 - 2011
March 1, 2009
"How the Test Was Won"
4ABX03
432 - 2012
March 8, 2009
"No Loan Again, Naturally"
4ABX04
433 - 2013
March 15, 2009
"Gone Maggie Gone"
4ABX05
434 - 2015
March 29, 2009
"Wedding for Disaster"
4ABX06
435 - 2016
April 5, 2009
"Eeny Teeny Maya, Moe"
4ABX07
436 - 2017
April 19, 2009
"The Good, the Sad and the Drugly"
4ABX08
437 - 2018
April 26, 2009
"Father Knows Worst"
4ABX09
438 - 2020
May 10, 2009
"Four Great Women and a Manicure"
4ABX10
439 - 2019
May 3, 2009
"Waverly Hills, 9-0-2-1-D'oh"
4ABX11
440 - 2014
March 22, 2009
"In the Name of the Grandfather"
4ABX12
441 - 2021
May 17, 2009
"Coming to Homerica"
4ABX13
442 - 2101
September 27, 2009
"Homer the Whopper"
4ABX14
443 - 2104
October 18, 2009
"Treehouse of Horror XX"
4ABX15
444 - 2102
October 4, 2009
"Bart Gets a "Z""
4ABX16
445 - 2103
October 11, 2009
"The Great Wife Hope"
4ABX17
446 - 2105
November 15, 2009
"The Devil Wears Nada"
4ABX18
447 - 2106
November 22, 2009
"Pranks and Greens"
4ABX19
448 - 2107
November 29, 2009
"Rednecks and Broomsticks"
4ABX20
449 - 2110
January 10, 2010
"Once Upon a Time in Springfield"
4ABX21
Unknown
January 10, 2010
"The Simpsons 20th Anniversary Special – In 3-D! On Ice!"
5ABX - Season 5[]
Main article: Season 21
Prod. Code
Episode No.
Airdate
Title
5ABX01
450 - 2108
December 13, 2009
"O Brother, Where Bart Thou?"
5ABX02
451 - 2109
January 3, 2010
"Thursdays with Abie"
5ABX03
452 - 2111
January 31, 2010
"Million Dollar Maybe"
5ABX04
453 - 2114
March 14, 2010
"Postcards From the Wedge"
5ABX05
454 - 2112
February 14, 2010
"Boy Meets Curl"
5ABX06
455 - 2113
February 21, 2010
"The Color Yellow"
5ABX07
456 - 2115
March 21, 2010
"Stealing First Base"
5ABX08
457 - 2117
April 11, 2010
"American History X-cellent"
5ABX09
458 - 2118
April 18, 2010
"Chief of Hearts"
5ABX10
459 - 2116
March 28, 2010
"The Greatest Story Ever D'ohed"
5ABX11
460 - 2122
May 16, 2010
"The Bob Next Door"
5ABX12
461 - 2120
May 2, 2010
"To Surveil With Love"
5ABX13
462 - 2121
May 9 ,2010
"Moe Letter Blues"
5ABX14
463 - 2119
April 25, 2010
"The Squirt and the Whale"
5ABX15
464 - 2123
May 23, 2010
"Judge Me Tender"
5ABX16
465 - 2204
November 7, 2010
"Treehouse of Horror XXI"
5ABX17
466 - 2202
October 3, 2010
"Loan-a Lisa"
5ABX18
467 - 2203
October 10, 2010
"MoneyBART"
5ABX19
468 - 2209
December 12, 2010
"Donnie Fatso"
5ABX20
469 - 2205
November 14, 2010
"Lisa Simpson, This Isn't Your Life"
5ABX21
470 - 2201
September 26, 2010
"Elementary School Musical"
5ABX22
471 - 2208
December 5, 2010
"The Fight Before Christmas"
6ABX - Season 6[]
Main article: Season 22
Prod. Code
Episode No.
Airdate
Title
6ABX01
472 - 2206
November 21. 2010
"The Fool Monty"
6ABX02
473 - 2207
November 28, 2010
"How Munched is That Birdie in the Window?"
6ABX03
474 - 2210
January 9, 2011
"Moms I'd Like to Forget"
6ABX04
475 - 2211
January 16, 2011
"Flaming Moe"
6ABX05
476 - 2212
January 23, 2011
"Homer the Father"
6ABX06
477 - 2213
February 13, 2011
"The Blue and the Gray"
6ABX07
478 - 2214
February 20, 2011
"Angry Dad: The Movie"
6ABX08
479 - 2215
March 6, 2011
"The Scorpion's Tale"
6ABX09
480 - 2216
March 13, 2011
"A Midsummer's Nice Dream"
6ABX10
481 - 2217
March 27, 2011
"Love is a Many Strangled Thing"
6ABX11
482 - 2218
April 10, 2011
"The Great Simpsina"
6ABX12
483 - 2219
May 1, 2011
"The Real Housewives of Fat Tony"
6ABX13
484 - 2220
May 8, 2011
"Homer Scissorhands"
6ABX14
485 - 2221
May 15, 2011
"500 Keys"
6ABX15
486 - 2222
May 22, 2011
"The Ned-liest Catch"
6ABX16
487 - 2301
September 25, 2011
"The Falcon and the D'ohman"
6ABX17
488 - 2302
October 2, 2011
"Bart Stops to Smell the Roosevelts"
6ABX18
489 - 2309
December 11, 2011
"Holidays of Future Passed"
6ABX19
490 - 2303
October 30, 2011
"Treehouse of Horror XXII"
6ABX20
491 - 2305
November 13, 2011
"The Food Wife"
6ABX21
492 - 2304
November 6, 2011
"Replaceable You"
6ABX22
493 - 2306
Novemer 20, 2011
"The Book Job"
7ABX - Season 7[]
Main article: Season 23
Prod. Code
Episode No.
Airdate
Title
7ABX01
494 - 2307
November 27, 2011
"The Man in the Blue Flannel Pants"
7ABX02
495 - 2308
December 4, 2011
"The Ten-Per-Cent Solution"
7ABX03
496 - 2310
January 8, 2012
"Politically Inept, with Homer Simpson"
7ABX04
497 - 2311
January 15, 2012
"The D'oh-cial Network"
7ABX05
498 - 2312
January 29, 2012
"Moe Goes from Rags to Riches"
7ABX06
499 - 2313
February 12, 2012
"The Daughter Also Rises"
7ABX07
500 - 2314
February 19, 2012
"At Long Last Leave"
7ABX08
501 - 2316
March 11, 2012
"How I Wet Your Mother"
7ABX09
502 - 2315
March 4, 2012
"Exit Through the Kwik-E-Mart"
7ABX10
503 - 2317
March 18, 2012
"Them, Robot"
7ABX11
504 - 2318
April 15, 2012
"Beware My Cheating Bart"
7ABX12
505 - 2319
April 29, 2012
"A Totally Fun Thing That Bart Will Never Do Again"