Production art, storyboards, the US Copyright Catalog, and EIDR helped me out to put together what WB Animation's production numbering system looks like.
Warner Bros. has their own unique production number system. You see this at the end of all of their live action shows including Friends and The Big Bang Theory, but not in their animated shows. Thankfully, I spent some time doing some research and this is what I put together.
1989-1998 (406-XXX / 407-XXX)
- 406-100 - Tiny Toon Adventures
- 406-285 - The Sylvester & Tweety Mysteries Season 1
- 406-350 - The Sylvester & Tweety Mysteries Season 2
- 406-400 - Taz-Mania
- 406-500 - Batman: The Animated Series
- 406-600/700/800 - Animanaics Season 1-2
- 406-670 to 696 - Animaniacs Season 3/Pinky and the Brain Season 1
- 406-900 - Freakazoid!
- 407-000 - Superman: The Animated Series
- 407-100 - Animanaics Season 4-5
- 407-200 - Pinky & the Brain Season 2-4
- 407-300 - Road Rovers
- 407-315 - The Sylvester and Tweety Mysteries Season 3-4
- 407-400 - Waynehead
- 407-420 - The New Batman Adventures
195-XXX - Direct to Video Movies
1998-2003 (385-XXX)
- 385-200 - Histeria!
- 385-350 - Batman Beyond
- 385-400 - Pinky, Elmyra & the Brain
- 385-510 - Detention
- 385-530 - The Zeta Project Season 1
- 385-550 - Static Shock Season 1
- 385-570 - Justice League Season 1
- 385-600 - Static Shock Season 2
- 385-620 - The Zeta Project Season 2
- 385-640 - ¡Mucha Lucha! Season 1
- 385-660 (or 670) - Baby Looney Tunes Season 1
- 385-760 - Ozzy & Drix Season 1
- 385-850 - Static Shock Season 3
- 385-870 - Duck Dodgers Season 1
- 385-900 - Teen Titans Season 1
- 385-920 - What's New Scooby-Doo? Season 2
- 385-940 - Ozzy & Drix Season 2
- 385-960 - ¡Mucha Lucha! Season 2A
2003-2006 (257-XXX)
- 257-300 - Xiaolin Showdown Season 1
- 257-320 - Teen Titans Season 2
- 257-340 - Duck Dodgers Season 2
- 257-370 - Static Shock Season 4
- 257-390 - ¡Mucha Lucha! Season 2B
- 257-420 - The Batman Season 1/2
- 257-480 - Teen Titans Season 3/4
- 257-510 - Krypto The Superdog Season 1
- 257-570 - ¡Mucha Lucha! Season 3
- 257-600 - Duck Dodgers Season 3
- 257-630 - What's New Scooby-Doo? Season 3
- 257-650 - Xiaolin Showdown Season 2
- 257-680 - Baby Looney Tunes Season 2
- 257-730 - Teen Titans Season 5
- 257-750 - Firehouse Tales
- 257-840 - Tom and Jerry Tales Season 1
- 257-890 - Xiaolin Showdown Season 3
- 257-910 - Loonatics Unleashed Season 1
- 257-930 - Coconut Fred's Fruit Salad Island!
- 257-960 - Johnny Test Season 1 (the only season produced by WB Animation in-house)
2006-2013 (345-XXX / 346-XXX)
- 345-300 - The Batman Season 3
- 345-320 - Krypto The Superdog Season 2
- 345-390 - Legion of Super Heroes Season 1
- 345-520 - Legion of Super Heroes Season 2
- 345-540 - Batman: The Brave and the Bold Season 1
- 345-570 - Batman: The Brave and the Bold Season 2
- 345-600 - Scooby-Doo! Mystery Incorporated Season 1
- 345-630 - The Looney Tunes Show Season 1
- 345-660 - Young Justice
- 345-690 - Thundercats (2011)
- 345-720 - Batman: The Brave and the Bold Season 3
- 345-740 - Mad Season 1
- 345-800 - Scooby-Doo! Mystery Incorporated Season 2
- 345-830 - Mad Season 2
- 345-860 - Young Justice: Invasion
- 345-890 - The Looney Tunes Show Season 2
- 345-920 - Beware the Batman
- 346-600 - Mad Season 3
- 256-500 - DC Nation
2013-2016 (3A5XXX)
- 3A5-010 - Teen Titans Go! Season 1
- 3A5-070 - The Tom and Jerry Show Season 1
- 3A5-130 - Teen Titans Go! Season 2
- 3A5-190 - Mike Tyson Mysteries Season 1
- 3A5-210 - Be Cool, Scooby-Doo! Season 1
- 3A5-240 - Wabbit Season 1
- 3A5-350 - Teen Titans Go! Season 3
- 3A5-410 - The Tom and Jerry Show Season 2
- 3A5-490 - Mike Tyson Mysteries Season 2
- 3A5-580 - Bunnicula Season 1
2016-present (A14.12XXX / A14.13XXX / A14.14XXX / A14.15XXX)
- A14.12400 (unconfirmed) - RIght Now Kapow
- A14.12460 / A14.12490 - Be Cool, Scooby-Doo! Season 2 / Dorothy and the Wizard of Oz Season 1
- A14.12540 - Wacky Races Season 1
- A14.12620 - New Looney Tunes Season 2 (2016-2017) WABB
- A14.12790 - The Tom and Jerry Show Season 3 TJ03
- A14.12730 - Teen Titans Go! Season 4 TTGO
- A14.12870 - Bunnicula Season 2 BUNN
- A14.12920 - Unikitty Season 1 UKTY
- A14.12970 - Dorothy and the Wizard of Oz Season 2 DWOZ
- A14.13030 - Wacky Races Season 2A WKRC
- A14.13060 - New Looney Tunes Season 3 (2017-2018) WABB
- A14.13170 - The Tom and Jerry Show Season 4 TJ04
- A14.13250 - Bunnicula Season 3 BUNN
- A14.13280 - Unikitty Season 2 UKTY
- A14.13330 - Teen Titans Go! Season 5 TTGO
- A14.13390 - Scooby-Doo and Guess Who? SDGW
- A14.13420 - DC Super Hero Girls Season 1 SUPG
- A14.13500 - Yabba Dabba Dinosaurs YBDB
- A14.13640 - Dorothy and the Wizard of Oz Season 3 DWOZ
- A14.13670 - Harley Quinn Season 1
- A14.13720 - ThunderCats Roar Season 1A TCAT
- A14.13800 - Animaniacs Season 1 ANMX
- A14.13870 - Gremlins: Secret of the Mogwai Season 1 GREM (production began in 2019)
- A14.13890 - DC Super Hero Girls Season 2 SUPG
- A14.13970 - Harley Quinn Season 2
- A14.14000 - Looney Tunes Cartoons LTCT (209 shorts were produced between 2018 and 2020)
- A14.14380 - ThunderCats Roar Season 1B TCAT
- A14.14470 - Animaniacs Season 2 ANMX
- A14.145XX - Teen Titans Go! Season 6 TTGO
- A14.14630 - Little Ellen LELN
- A14.14680 - Jellystone! Season 1 JELY
- A14.14724/725/726 - Aquaman: King of Atlantis AQUA
- A14.14730 - Tom and Jerry in New York TJNY
- A14.14790 - Teen Titans Go! Season 7 TTGO
- A14.14850 - Harley Quinn Season 3 HARQ
- A14.14870 - Batwheels Season 1 BTWL
- A14.14920 - Tiny Toons Looniversity Season 1 TINY
- A14.14960 - Animaniacs Season 3 ANMX
- A14.15520 - Velma Season 1 VELM
- A14.15540 - Bugs Bunny Builders Season 1 BBBD
- A14.15610 - My Adventures with Superman Season 1 MAWS
- A14.15630 - Teen Titans Go! Season 8 TTGO
- A14.15720 - Harley Quinn Season 4 HARQ
That is all I have so far. And typically the episode orders range anywhere between 10, 13, 26, 40 and 52 ranging from 11-minutes to 22-minutes.
Warner Bros. has their own unique production number system. You see this at the end of all of their live action shows including Friends and The Big Bang Theory, but not in their animated shows. Thankfully, I spent some time doing some research and this is what I put together.
1989-1998 (406-XXX / 407-XXX)
- 406-100 - Tiny Toon Adventures
- 406-285 - The Sylvester & Tweety Mysteries Season 1
- 406-350 - The Sylvester & Tweety Mysteries Season 2
- 406-400 - Taz-Mania
- 406-500 - Batman: The Animated Series
- 406-600/700/800 - Animanaics Season 1-2
- 406-670 to 696 - Animaniacs Season 3/Pinky and the Brain Season 1
- 406-900 - Freakazoid!
- 407-000 - Superman: The Animated Series
- 407-100 - Animanaics Season 4-5
- 407-200 - Pinky & the Brain Season 2-4
- 407-300 - Road Rovers
- 407-315 - The Sylvester and Tweety Mysteries Season 3-4
- 407-400 - Waynehead
- 407-420 - The New Batman Adventures
195-XXX - Direct to Video Movies
1998-2003 (385-XXX)
- 385-200 - Histeria!
- 385-350 - Batman Beyond
- 385-400 - Pinky, Elmyra & the Brain
- 385-510 - Detention
- 385-530 - The Zeta Project Season 1
- 385-550 - Static Shock Season 1
- 385-570 - Justice League Season 1
- 385-600 - Static Shock Season 2
- 385-620 - The Zeta Project Season 2
- 385-640 - ¡Mucha Lucha! Season 1
- 385-660 (or 670) - Baby Looney Tunes Season 1
- 385-760 - Ozzy & Drix Season 1
- 385-850 - Static Shock Season 3
- 385-870 - Duck Dodgers Season 1
- 385-900 - Teen Titans Season 1
- 385-920 - What's New Scooby-Doo? Season 2
- 385-940 - Ozzy & Drix Season 2
- 385-960 - ¡Mucha Lucha! Season 2A
2003-2006 (257-XXX)
- 257-300 - Xiaolin Showdown Season 1
- 257-320 - Teen Titans Season 2
- 257-340 - Duck Dodgers Season 2
- 257-370 - Static Shock Season 4
- 257-390 - ¡Mucha Lucha! Season 2B
- 257-420 - The Batman Season 1/2
- 257-480 - Teen Titans Season 3/4
- 257-510 - Krypto The Superdog Season 1
- 257-570 - ¡Mucha Lucha! Season 3
- 257-600 - Duck Dodgers Season 3
- 257-630 - What's New Scooby-Doo? Season 3
- 257-650 - Xiaolin Showdown Season 2
- 257-680 - Baby Looney Tunes Season 2
- 257-730 - Teen Titans Season 5
- 257-750 - Firehouse Tales
- 257-840 - Tom and Jerry Tales Season 1
- 257-890 - Xiaolin Showdown Season 3
- 257-910 - Loonatics Unleashed Season 1
- 257-930 - Coconut Fred's Fruit Salad Island!
- 257-960 - Johnny Test Season 1 (the only season produced by WB Animation in-house)
2006-2013 (345-XXX / 346-XXX)
- 345-300 - The Batman Season 3
- 345-320 - Krypto The Superdog Season 2
- 345-390 - Legion of Super Heroes Season 1
- 345-520 - Legion of Super Heroes Season 2
- 345-540 - Batman: The Brave and the Bold Season 1
- 345-570 - Batman: The Brave and the Bold Season 2
- 345-600 - Scooby-Doo! Mystery Incorporated Season 1
- 345-630 - The Looney Tunes Show Season 1
- 345-660 - Young Justice
- 345-690 - Thundercats (2011)
- 345-720 - Batman: The Brave and the Bold Season 3
- 345-740 - Mad Season 1
- 345-800 - Scooby-Doo! Mystery Incorporated Season 2
- 345-830 - Mad Season 2
- 345-860 - Young Justice: Invasion
- 345-890 - The Looney Tunes Show Season 2
- 345-920 - Beware the Batman
- 346-600 - Mad Season 3
- 256-500 - DC Nation
2013-2016 (3A5XXX)
- 3A5-010 - Teen Titans Go! Season 1
- 3A5-070 - The Tom and Jerry Show Season 1
- 3A5-130 - Teen Titans Go! Season 2
- 3A5-190 - Mike Tyson Mysteries Season 1
- 3A5-210 - Be Cool, Scooby-Doo! Season 1
- 3A5-240 - Wabbit Season 1
- 3A5-350 - Teen Titans Go! Season 3
- 3A5-410 - The Tom and Jerry Show Season 2
- 3A5-490 - Mike Tyson Mysteries Season 2
- 3A5-580 - Bunnicula Season 1
2016-present (A14.12XXX / A14.13XXX / A14.14XXX / A14.15XXX)
- A14.12400 (unconfirmed) - RIght Now Kapow
- A14.12460 / A14.12490 - Be Cool, Scooby-Doo! Season 2 / Dorothy and the Wizard of Oz Season 1
- A14.12540 - Wacky Races Season 1
- A14.12620 - New Looney Tunes Season 2 (2016-2017) WABB
- A14.12790 - The Tom and Jerry Show Season 3 TJ03
- A14.12730 - Teen Titans Go! Season 4 TTGO
- A14.12870 - Bunnicula Season 2 BUNN
- A14.12920 - Unikitty Season 1 UKTY
- A14.12970 - Dorothy and the Wizard of Oz Season 2 DWOZ
- A14.13030 - Wacky Races Season 2A WKRC
- A14.13060 - New Looney Tunes Season 3 (2017-2018) WABB
- A14.13170 - The Tom and Jerry Show Season 4 TJ04
- A14.13250 - Bunnicula Season 3 BUNN
- A14.13280 - Unikitty Season 2 UKTY
- A14.13330 - Teen Titans Go! Season 5 TTGO
- A14.13390 - Scooby-Doo and Guess Who? SDGW
- A14.13420 - DC Super Hero Girls Season 1 SUPG
- A14.13500 - Yabba Dabba Dinosaurs YBDB
- A14.13640 - Dorothy and the Wizard of Oz Season 3 DWOZ
- A14.13670 - Harley Quinn Season 1
- A14.13720 - ThunderCats Roar Season 1A TCAT
- A14.13800 - Animaniacs Season 1 ANMX
- A14.13870 - Gremlins: Secret of the Mogwai Season 1 GREM (production began in 2019)
- A14.13890 - DC Super Hero Girls Season 2 SUPG
- A14.13970 - Harley Quinn Season 2
- A14.14000 - Looney Tunes Cartoons LTCT (209 shorts were produced between 2018 and 2020)
- A14.14380 - ThunderCats Roar Season 1B TCAT
- A14.14470 - Animaniacs Season 2 ANMX
- A14.145XX - Teen Titans Go! Season 6 TTGO
- A14.14630 - Little Ellen LELN
- A14.14680 - Jellystone! Season 1 JELY
- A14.14724/725/726 - Aquaman: King of Atlantis AQUA
- A14.14730 - Tom and Jerry in New York TJNY
- A14.14790 - Teen Titans Go! Season 7 TTGO
- A14.14850 - Harley Quinn Season 3 HARQ
- A14.14870 - Batwheels Season 1 BTWL
- A14.14920 - Tiny Toons Looniversity Season 1 TINY
- A14.14960 - Animaniacs Season 3 ANMX
- A14.15520 - Velma Season 1 VELM
- A14.15540 - Bugs Bunny Builders Season 1 BBBD
- A14.15610 - My Adventures with Superman Season 1 MAWS
- A14.15630 - Teen Titans Go! Season 8 TTGO
- A14.15720 - Harley Quinn Season 4 HARQ
That is all I have so far. And typically the episode orders range anywhere between 10, 13, 26, 40 and 52 ranging from 11-minutes to 22-minutes.
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