| AS12301 | Invitech (Fibernet, PanTel, Hungarotel, Euroweb, Novacom, Elender, Digitel2002, Vivendi, Deltav) |  | |
| AS12302 | Vodafone Romania (Vodafone Romania) |  | |
| AS12303 | Council of Hungarian Internet Providers (Council of Hungarian Internet Providers) | | |
| AS12305 | G9Telecom (Simplesnet) |  | |
| AS12306 | Plus.line AG (Plusline) |  | |
| AS12307 | Sandro Bolliger (internetprovider.ch) |  | |
| AS12309 | NOUVELLE-AS Nouvelle S.r.l |  | |
| AS12310 | iNES Group (iNES Group) | | |
| AS12311 | IAEA International Atomic Energy Agency |  | |
| AS12312 | ecotel communication ag (formerly nacamar GmbH) | | |
| AS12314 | RopNet (RopNet) |  | |
| AS12315 | Quality Service Provider (Town QSP) |  | |
| AS12316 | Finanz Informatik Technologie Service (FI-TS) | | |
| AS12318 | FR-AS-EXANE EXANE SA |  | |
| AS12319 | IZFE-AS Informatika Zerbitzuen Foru Elkartea Sociedad Foral de Servicios Informaticos SA |  | |
| AS12321 | Ibercom Telecom (Ibercom Telecom) | | |
| AS12322 | Free SAS (ProXad / Iliad) | | |
| AS12324 | LUBMAN-EDU-AS Maria Curie-Sklodowska University |  | |
| AS12325 | IPv4-AS IPv4 Management SRL | | |
| AS12327 | idear4business international (idear4business international) | ||
| AS12328 | ALAN-SYSTEMS-RYBNIK-AS "Alan Systems" Sp. z o. o. | | |
| AS12329 | TMR Telekommunikation Mittleres Ruhrgebiet (TMR Telekommunikation Mittleres Ruhrgebiet) | | |
| AS12330 | MPYNET-AS MPY Telecom Oyj |  | |
| AS12331 | UNSPECIFIED | ||
| AS12332 | PRIMORYE-AS PJSC Rostelecom | | |
| AS12333 | DFI Service SA (DFI Service SA) | | |
| AS12334 | UNSPECIFIED R Cable y Telecable Telecomunicaciones, S.A.U. | | |
| AS12335 | Tario Communications (Tario Communications) | | |
| AS12337 | noris network AG (AS-NORIS) | | |
| AS12338 | EUSKALTEL S.A. (EUSKALTEL S.A.) | | |
| AS12341 | uspc Ural State Polzunov College | | |
| AS12342 | BRACK-AS Brack.ch AG | | |
| AS12344 | CZECHITC CZECH IT CLUSTER, druzstvo |  | |
| AS12345 | General Software (General Software) | | |
| AS12346 | LUBMAN-COM-AS Maria Curie-Sklodowska University | | |
| AS12347 | VirtualTec Solutions AG (VirtualTec Solutions AG) | | |
| AS12348 | ODN OnlineDienst Nordbayern GmbH & Co. KG (ODN OnlineDienst Nordbayern GmbH & Co. KG) | | |
| AS12349 | Bayer-AS Bayer AG | | |
| AS12350 | VTX Services SA (VTX Telecom / Smart-Telecom) | | |
| AS12353 | Vodafone Portugal (Vodafone Portugal) | | |
| AS12355 | HeLi NET Telekommunikation (City2020 / HAMCOM / LuenTEL / GSWCOM / AhlenCOM /SoestCOM) | | |
| AS12356 | RAU-AS IPv4 Management SRL | | |
| AS12357 | COMUNITEL (COMUNITEL) | | |
| AS12360 | KEVAG Telekom GmbH (RZ Online) | | |
| AS12361 | Panafonet-AS VODAFONE-PANAFON HELLENIC TELECOMMUNICATIONS COMPANY SA |  | |
| AS12362 | EURIS CLOUD SANTE (EURIS CLOUD SANTE) | | |
| AS12363 | Dada - Firenze (Dada - Firenze) | | |
| AS12364 | UOM | ||
| AS12365 | Sarkor Telecom (Sarkor Telecom) |  | |
| AS12371 | AVENCY Avency GmbH | |