Unclassified
Not enough sources, unclear purpose, or conflicting classifications
- ASNs
- 87,693
- 69.5% of all ASNs
- Routed ASNs
- 54,038
- 61.6% of this type
- IPv4 addresses
- 916.0M
- 26.7% of global
- IPv6 /48s
- 3.63B
- 29.2% of global
Routing data · Oct 28, 2026, 12:21 UTC
Unclassified ASN ranking
| Rank | ASN | Name | Country/region | IPv4 addresses | IPv6 /48s | Prefixes |
|---|---|---|---|---|---|---|
| 37501 | AS1419 | Selerity Financial, Inc. |  United States | 256 | 0 | 1 |
| 37502 | AS1428 | DRW Holdings, LLC | United States | 256 | 0 | 1 |
| 37503 | AS1430 | Board of Bar Overseers | United States | 256 | 0 | 1 |
| 37504 | AS1492 | Headquarters, USAISC | United States | 256 | 0 | 1 |
| 37505 | AS1523 | Headquarters, USAISC | United States | 256 | 0 | 1 |
| 37506 | AS1553 | United States Department of Defense (DoD) | United States | 256 | 0 | 1 |
| 37507 | AS1604 | TBCDSB |  Canada | 256 | 0 | 1 |
| 37508 | AS1609 | Global Imaging Systems Inc | United States | 256 | 0 | 1 |
| 37509 | AS1615 | Exelixis Inc. | United States | 256 | 0 | 1 |
| 37510 | AS1622 | NCH Capital Inc. | United States | 256 | 0 | 1 |
| 37511 | AS1627 | TOWNEBANK | United States | 256 | 0 | 1 |
| 37512 | AS1634 | Bluewater District School Board | Canada | 256 | 0 | 1 |
| 37513 | AS1646 | American Solutions for Business | United States | 256 | 0 | 1 |
| 37514 | AS1650 | Cambridge Public Schools | United States | 256 | 0 | 1 |
| 37515 | AS1652 | MIDFLORIDA Federal Credit Union | United States | 256 | 0 | 1 |
| 37516 | AS1670 | Verizon Business | United States | 256 | 0 | 1 |
| 37517 | AS1700 | Rice University | United States | 256 | 0 | 1 |
| 37518 | AS1732 | IDDQD-AS |  European Union | 256 | 0 | 1 |
| 37519 | AS1782 | — | — | 256 | 0 | 1 |
| 37520 | AS1809 | Performance Team | United States | 256 | 0 | 1 |
| 37521 | AS1812 | DXC US Latin America Corporation | United States | 256 | 0 | 1 |
| 37522 | AS1813 | DXC US Latin America Corporation | United States | 256 | 0 | 1 |
| 37523 | AS1837 | The North Atlantic Treaty Organization | European Union | 256 | 0 | 1 |
| 37524 | AS1852 | University of California - Office of the President | United States | 256 | 0 | 1 |
| 37525 | AS1859 | RTX BBN Technologies, Inc. | United States | 256 | 0 | 1 |
| 37526 | AS1861 | RTX BBN Technologies, Inc. | United States | 256 | 0 | 1 |
| 37527 | AS1885 | SBN-AS |  Türkiye | 256 | 0 | 1 |
| 37528 | AS1890 | Verizon |  Netherlands | 256 | 0 | 1 |
| 37529 | AS1908 | United States Department of Defense (DoD) | United States | 256 | 0 | 1 |
| 37530 | AS1911 | United States Department of Defense (DoD) | United States | 256 | 0 | 1 |
| 37531 | AS1958 | NCR Voyix Corporation | United States | 256 | 0 | 1 |
| 37532 | AS1975 | PROQUEST LLC | United States | 256 | 0 | 1 |
| 37533 | AS2020 | Adhesives Research | United States | 256 | 0 | 1 |
| 37534 | AS2031 | American Water Works Company Inc. | United States | 256 | 0 | 1 |
| 37535 | AS2111 | Skynet-AS |  Bulgaria | 256 | 0 | 1 |
| 37536 | AS2462 | Renater | European Union | 256 | 0 | 1 |
| 37537 | AS2538 | IBM | United States | 256 | 0 | 1 |
| 37538 | AS2539 | GlaxoSmithKline | United States | 256 | 0 | 1 |
| 37539 | AS2587 | FREE-NET-AS2587 |  Russia | 256 | 0 | 1 |
| 37540 | AS2717 | Cummins Inc. | United States | 256 | 0 | 1 |
| 37541 | AS2723 | ENDURANCE REINSURANCE CORPORATION OF AMERICA | United States | 256 | 0 | 1 |
| 37542 | AS2725 | Berkeley Educational Services of New Jersey, Inc. | United States | 256 | 0 | 1 |
| 37543 | AS2738 | Shields Health Care Group | United States | 256 | 0 | 1 |
| 37544 | AS2756 | Ernst & Young |  New Zealand | 256 | 0 | 1 |
| 37545 | AS2836 | BAGNET |  Sweden | 256 | 0 | 1 |
| 37546 | AS2838 | SUNT | Sweden | 256 | 0 | 1 |
| 37547 | AS2877 | LSC-AS |  Latvia | 256 | 0 | 1 |
| 37548 | AS2886 | EdgeMicro | United States | 256 | 0 | 1 |
| 37549 | AS2909 | Citigroup Inc. | United States | 256 | 0 | 1 |
| 37550 | AS3066 | Robert E. Seastrom | United States | 256 | 0 | 1 |