The Nintendo 3DS utilizes a similar title-based organization as seen in the Wii and DSi platforms. The same update server is being used as was with the DSi, however a new common key has been introduced.

The organization of Title IDs has not been documented fully yet. TitleIDs don't seem to contain regions anymore?

00040010 System applications

TitleID low Region Description Versions
00020000 JPN ? v0, v1027
00021000 USA ? v0, v1027
00022000 EUR ? v0, v1027
00020100 JPN ? v0
00021100 USA ? v0
00022100 EUR ? v0
00020200 JPN ? v0, v1026
00021200 USA ? v0, v1026
00022200 EUR ? v0, v1026
00020300 JPN ? v0
00021300 USA ? v0
00022300 EUR ? v0
00020400 JPN Nintendo 3DS Camera v0
00021400 USA Nintendo 3DS Camera v0
00022400 EUR Nintendo 3DS Camera v0
00020500 JPN Nintendo 3DS Sound v0
00021500 USA Nintendo 3DS Sound v0
00022500 EUR Nintendo 3DS Sound v0
00020700 JPN ? v0, v1026
00021700 USA ? v0, v1026
00022700 EUR ? v0, v1026
00020800 JPN ? v0, v1027
00021800 USA ? v0, v1027
00022800 EUR ? v0, v1027
00020900 JPN eShop v4, v1026
00021900 USA eShop v4, v1026
00022900 EUR eShop v4, v1026
00020A00 JPN added with 2.0.0-2, probably web browser? v4
00021A00 USA added with 2.0.0-2, probably web browser? v4
00022A00 EUR added with 2.0.0-2, probably web browser? v4
00023000 JPN Promotional video (size of these video titles changed from 26MB to 131KB) v0, v2048
00024000 USA Promotional video v0, v2048
00025000 EUR Promotional video v0, v2048

0004001B

TitleID low Description Versions
00010002 ? v0

00040030 "Firmware" related?

TitleID low Region Description Versions
00008202 JPN ? v0, v1029
00008A02 All ? v0, v1025
00008F02 USA ? v0, v1027, v2049
00009202 USA ? v0, v1026
00009302 USA ? v0, v1026
00009402 USA ? v6
00009602 USA ? v0, v1026
00009702 USA ? v0, v1029
00009802 EUR ? v0, v1029
0000C502 All ? v0, v1026
0000C802 USA ? v0, v1026
0000CC02 USA ? v3

0004009B

TitleID low Region Description Versions
00010202 All ? v0
00010402 All ? v0, v1024
00010602 All ? v2
00011902 JPN ? v0
00011402 USA ? v0
00011202 EUR ? v0
00012202 JPN ? v1026
00012302 USA ? v1026
00012102 EUR ? v1026
00013302 USA ? v1024

000400DB

TitleID low Region Description Versions
00016102 EUR ? v32, v48
00016302 USA ? v32, v48
00017102 EUR ? v2049, v2069
00017302 USA ? v2049, v2069

00040130 "Firmware"

TitleID low Description Versions
00001C02 Firmware 02_1C v1040
0004013000001F02 Firmware 02_1F v2048
00002402 Firmware 02_24 v1024, v3072
0004013000002902 Firmware 02_29 v2049
0004013000002F02 Firmware 02_2F v2048
00002D02 Firmware 02_2D v1024
00002E02 Firmware 02_2E v1024
00003402 Firmware 02_34 v1024
00008002 Firmware 02_80 v0, v1028
00008A02 Firmware 02_8A v0, v1025
00008F02 Firmware 02_8F v0, v1027

00040138

TitleID low Description Versions
00000002 Home Menu v1472, v2516, v3553
00000003 ? v432
00000102 ? v432, v1489

00048005

TitleID low Description Versions
42383841(A88B) ? v0
484E4441(HNDA) Download Play v1024

0004800F

TitleID low Description Versions
484E4841(AHNH/HNHA) Likely Nintendo DS Cart Whitelist, since this matches the DSi titleid low for that title? v0, v1026
484E4C41(ALNH/HNLA) Matches the DSi titleid low for Version Data but this title was never updated.(As of 2.1.0-3) v0

00040000 eShop title downloads

TitleID low Region Description Versions
00045c00 JPN 3D Classics Excitebike v0
00054300 USA 3D Classics Excitebike v0
0005ad00 JPN Kid Icarus Uprising E3 video v0
0005ae00 USA Kid Icarus Uprising E3 video v0
0005af00 JPN Paper Mario E3 video v0
0005b000 USA Paper Mario E3 video v0
0005b100 JPN Mario Kart E3 video v0
0005b200 USA Mario Kart E3 video v0
0005b300 JPN Animal Crossing E3 video v0
0005b400 USA Animal Crossing E3 video v0
0005b500 JPN Luigi's Mansion 2 E3 video v0
0005b600 USA Luigi's Mansion 2 E3 video v0
0005b700 JPN Zelda Ocarina of Time E3 video v0
0005b800 USA Zelda Ocarina of Time E3 video v0
0005b900 JPN Super Mario E3 video v0
0005ba00 USA Super Mario E3 video v0
0005bb00 JPN MGS Snake Eater 3D E3 video v0
0005bd00 JPN Biohazard Revelations E3 video v16
0005bf00 JPN Star Fox 64 3D E3 video v0
0005c000 USA Starfox 64 3D E3 video v0
0005ea00 EUR Green Lantern 3D Trailer video v0
0005f000 USA Green Lantern 3D Trailer video v0