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.

Here are some confirmed Title IDs (from the first update):

0004001000021000 v0, v1027
0004001000021200 v0, v1026
0004001000021700 v0, v1026
0004001000021800 v0, v1027
0004001000021900 v4 USA eShop
0004001000021A00 v4 (added with 2.0.0-2)

00040010-00024000 - USA Promotional video v0, 2048 (size of these video titles changed from 26MB to 131KB)
00040010-00025000 - EUR Promotional video v0, 2048

0004009B00010402 v0, v1024
0004009B00010602 v2
0004009B00012302 v1026
0004009B00013302 v1024

000400DB-00016102
000400DB-00017102

00040130-00001C02 - Firmware 02_1C v1040
00040130-00002402 - Firmware 02_24 v1024
00040130-00002D02 - Firmware 02_2D v1024
00040130-00002E02 - Firmware 02_2E v1024
00040130-00003402 - Firmware 02_34 v1024

0004003000009202 v0, v1026
0004003000009302 v0, v1026
0004003000009402 v6
0004003000009602 v0, v1026
0004003000009702 v0, v1029
000400300000C502 v0, v1026
000400300000C802 v0, v1026
000400300000CC02 v3

0004013000008002 v0, v1028
0004003000008A02 v0, v1025
0004003000008F02 v0, v1027

00040138-00000002 - Home Menu v1472
0004013800000102 v432, v1489 

00040010-00020400 Nintendo 3DS Camera (Available on NUS but not in SOAP response)
00040010-00020500 Nintendo 3DS Sound (Available on NUS but not in SOAP response)
 
0004800F484E4841 v0, v1026

0004000000045c00 3D Classics Excitebike - JP
0004000000054300 3D Classics Excitebike - USA
000400000005ad00 Parutena no Kagami E3 video - JP
000400000005ae00 Kid Icarus Uprising E3 video - USA
000400000005af00 Paper Mario E3 video - JP
000400000005b000 Paper Mario E3 video - USA
000400000005b100 Mario Kart E3 video - JP
000400000005b200 Mario Kart E3 video - USA
000400000005b300 Doubutsu no Mori E3 video - JP
000400000005b400 Animal Crossing E3 video - USA
000400000005b500 Luigi's Mansion 2 E3 video - JP
000400000005b600 Luigi's Mansion 2 E3 video - USA
000400000005b700 Zelda no Densetsu Toki no Ocarina 3D E3 video - JP
000400000005b800 Zelda Ocarina of Time E3 video - USA
000400000005b900 Super Mario E3 video - JP
000400000005bb00 MGS Snake Eater 3D E3 video - JP
000400000005bd00 Biohazard Revelations E3 video - JP
000400000005bf00 Star Fox 64 3D E3 video - JP
000400000005c000 Starfox 64 3D E3 video - USA
000400000005ea00 Green Lantern 3D Trailer video - EUR

Alternate title listing format

00040000 eShop and SpotPass title downloads

TitleID low Region Description Versions
0005ad00 JP Parutena no Kagami E3 video N/A
0005ae00 USA Kid Icarus Uprising E3 video N/A
0005af00 JP Paper Mario E3 video N/A
0005b000 USA Paper Mario E3 video N/A
0005b100 JP Mario Kart E3 video N/A
0005b200 USA Mario Kart E3 video N/A
0005b300 JP Doubutsu no Mori E3 video N/A
0005b400 USA Animal Crossing E3 video N/A
0005b500 JP Luigi's Mansion 2 E3 video N/A
0005b600 USA Luigi's Mansion 2 E3 video N/A
0005b700 JP Zelda no Densetsu Toki no Ocarina 3D E3 video N/A
0005b800 USA Zelda Ocarina of Time E3 video N/A
0005b900 JP Super Mario E3 video N/A
0005bb00 JP MGS Snake Eater 3D E3 video N/A
0005bd00 JP Biohazard Revelations E3 video N/A
0005bf00 JP Star Fox 64 3D E3 video N/A
0005c000 USA Starfox 64 3D E3 video N/A
0005ea00 EUR Green Lantern 3D Trailer video N/A