ASN List
Directory of all announced autonomous systems (AS), aggregated from a local IP→ASN prefix database and refreshed every 12 hours. Click any ASN to view its announced IP prefixes and upstream / downstream / peer topology.
86,509 ASNs in total · Page 6 / 866
| ASN | Name | Country | IP prefixes (v4 / v6) |
|---|---|---|---|
| AS1124 | Universiteit van Amsterdam | EU | 3 / 0 |
| AS1126 | Vancis Advanced ICT Services | EU | 4 / 1 |
| AS1128 | SURF B.V. | NL | 3 / 0 |
| AS1133 | University Twente | NL | 1 / 1 |
| AS1136 | KPN B.V. | NL | 205 / 15 |
| AS1140 | Stichting Internet Domeinregistratie Nederland | NL | 3 / 3 |
| AS1145 | SURF B.V. | NL | 1 / 1 |
| AS1147 | SURF B.V. | NL | 3 / 0 |
| AS1149 | SURF B.V. | NL | 2 / 1 |
| AS1152 | SURF B.V. | NL | 2 / 2 |
| AS1161 | SURF B.V. | NL | 2 / 0 |
| AS1197 | Network Ability Limited | IE | 2 / 1 |
| AS1200 | Amsterdam Internet Exchange B.V. | NL | 3 / 1 |
| AS1201 | Old Dominion University | US | 5 / 0 |
| AS1204 | The State University of New York | US | 18 / 0 |
| AS1205 | University Linz | AT | 3 / 1 |
| AS1206 | Pittsburgh Supercomputing Center | US | 3 / 0 |
| AS1207 | Pittsburgh Supercomputing Center | US | 3 / 0 |
| AS1208 | United States Department of Defense (DoD) | US | 4 / 0 |
| AS1213 | ASIERA TECHNOLOGY SERVICES CLG | IE | 17 / 1 |
| AS1215 | Oracle Corporation | US | 3 / 1 |
| AS1217 | Oracle Corporation | US | 1 / 0 |
| AS1218 | Oracle Corporation | US | 7 / 12 |
| AS1219 | Oracle Corporation | US | 2 / 1 |
| AS1221 | Telstra Limited | AU | 193 / 2 |
| AS1222 | EL PASO COMMUNITY COLLEGE | US | 1 / 0 |
| AS1224 | University of Illinois | US | 2 / 1 |
| AS1225 | NTT America, Inc. | US | 2 / 1 |
| AS1226 | California Department of Technology | US | 25 / 0 |
| AS1234 | Fortum | EU | 3 / 0 |
| AS1236 | General Dynamics Information Technology, Inc. | US | 1 / 0 |
| AS1237 | KISTI | KR | 121 / 3 |
| AS1239 | SPRINTLINK | US | 0 / 1 |
| AS1241 | Forthnet | GR | 47 / 7 |
| AS1246 | Zito Media | US | 9 / 0 |
| AS1248 | HERE Global BV | NL | 6 / 0 |
| AS1249 | University of Massachusetts - AMHERST | US | 4 / 0 |
| AS1251 | FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO | BR | 24 / 1 |
| AS1252 | University of Nebraska Medical Center | US | 2 / 0 |
| AS1255 | Smith College | US | 3 / 0 |
| AS1257 | Tele2 Sverige AB | EU | 294 / 38 |
| AS1258 | XKL, LLC | US | 1 / 0 |
| AS1261 | National Instruments Corporation | US | 7 / 0 |
| AS1265 | Saint Mary's College | US | 3 / 0 |
| AS1267 | WIND TRE S.P.A. | IT | 48 / 2 |
| AS1270 | Verizon Deutschland GmbH | EU | 1 / 1 |
| AS1271 | Deutsche Telekom Technik GmbH / T-CNF | EU | 1 / 1 |
| AS1273 | Vodafone Group PLC | EU | 177 / 2 |
| AS1280 | Internet Systems Consortium, Inc. | US | 10 / 7 |
| AS1286 | Altay Corporation | US | 11 / 0 |
| AS1288 | Packet Clearing House, Inc. | US | 11 / 1 |
| AS1289 | Colgate University | US | 1 / 2 |
| AS1294 | NTT DATA Services Holdings Corporation | US | 12 / 0 |
| AS1299 | Arelion Sweden AB | SE | 78 / 14 |
| AS1301 | Electricite de France SA | EU | 7 / 1 |
| AS1303 | Renater | EU | 3 / 0 |
| AS1307 | Renater | EU | 2 / 0 |
| AS1311 | Barra International, LLC | US | 3 / 0 |
| AS1312 | Virginia Polytechnic Institute and State Univ. | US | 7 / 5 |
| AS1313 | Adobe Systems Inc. | US | 6 / 1 |
| AS1315 | Imperial PFS | US | 1 / 0 |
| AS1321 | Verizon Business | US | 19 / 4 |
| AS1323 | ANSBB-ASNNET-1 | US | 1 / 0 |
| AS1325 | ANSBB-ASNNET-1 | US | 2 / 0 |
| AS1326 | Verizon Business | US | 5 / 0 |
| AS1339 | ANSBB-ASNNET-1 | US | 7 / 2 |
| AS1341 | Rockwell Collins, Inc. | US | 30 / 1 |
| AS1342 | Fujitsu Invia Finland IP-network | EU | 6 / 1 |
| AS1347 | Inteliquent, inc. | US | 5 / 0 |
| AS1348 | California Department of Transportation | US | 1 / 0 |
| AS1351 | University of Vermont | US | 2 / 1 |
| AS1355 | AbelsonTaylor, Inc. | US | 1 / 0 |
| AS1358 | Hughes Network Systems, LLC | US | 3 / 0 |
| AS1360 | Mayfield Electric & Water Systems | US | 1 / 0 |
| AS1378 | Interbel Telephone Cooperative, Inc. | US | 9 / 0 |
| AS1379 | SINCH INTERCONNECT LLC | US | 3 / 0 |
| AS1380 | McVEAN Trading & Investments, LLC | US | 1 / 0 |
| AS1383 | ANSBB-ASNNET-2 | US | 1 / 0 |
| AS1387 | Verizon Business | US | 1 / 1 |
| AS1399 | Charles Schwab & Co., Inc. | US | 8 / 0 |
| AS1401 | DSW Information Technology LLC. | US | 2 / 0 |
| AS1403 | EBOX | CA | 66 / 11 |
| AS1405 | Caelus Technology LLC | US | 7 / 3 |
| AS1406 | Motorola Inc | US | 4 / 0 |
| AS1407 | Quotemedia | US | 2 / 0 |
| AS1410 | SMITH BAGLEY INC | US | 4 / 0 |
| AS1411 | Christopher Newport University | US | 4 / 0 |
| AS1412 | Gravity Interactive, Inc. | US | 2 / 1 |
| AS1414 | GENUINE PARTS COMPANY | US | 2 / 0 |
| AS1415 | Christus Health | US | 14 / 0 |
| AS1416 | Chicago Public Schools | US | 3 / 0 |
| AS1420 | STL OFFICE SOLUTIONS, INC. | US | 1 / 0 |
| AS1421 | WANSecurity, Inc. | US | 17 / 3 |
| AS1422 | Media6degrees | US | 3 / 0 |
| AS1423 | Rainbow Communications, L.L.C. | US | 4 / 0 |
| AS1426 | TenSpire Network | US | 1 / 0 |
| AS1428 | DRW Holdings, LLC | US | 1 / 0 |
| AS1430 | Board of Bar Overseers | US | 1 / 0 |
| AS1432 | Albion College | US | 1 / 0 |
| AS1436 | Meridian Health System | US | 1 / 0 |