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 |
|---|---|---|---|---|---|---|
| 37551 | AS3167 | ASINFOPRO |  Russia | 256 | 0 | 1 |
| 37552 | AS3173 | STANLEYWORKS-BE-AS |  Switzerland | 256 | 0 | 1 |
| 37553 | AS3187 | PBPF-AS |  Bulgaria | 256 | 0 | 1 |
| 37554 | AS3191 | CENTRINFORM-AS | Russia | 256 | 0 | 1 |
| 37555 | AS3201 | UMDASCH-AS |  Austria | 256 | 0 | 1 |
| 37556 | AS3206 | AFB-AS |  United Kingdom | 256 | 0 | 1 |
| 37557 | AS3227 | Live_in_Sky_Ltd | Russia | 256 | 0 | 1 |
| 37558 | AS3235 | GOLDENISP-AS | Russia | 256 | 0 | 1 |
| 37559 | AS3247 | INS |  Germany | 256 | 0 | 1 |
| 37560 | AS3263 | Pishgaman |  Iran | 256 | 0 | 1 |
| 37561 | AS3276 | MMC-AS | Russia | 256 | 0 | 1 |
| 37562 | AS3279 | VASHNET-AS |  Ukraine | 256 | 0 | 1 |
| 37563 | AS3291 | PSINet-Europe |  United States | 256 | 0 | 1 |
| 37564 | AS3337 | KOMATSUDE | Germany | 256 | 0 | 1 |
| 37565 | AS3357 | VLAN24 |  South Korea | 256 | 0 | 1 |
| 37566 | AS3366 | a2i communications | United States | 256 | 0 | 1 |
| 37567 | AS3408 | Rainbow Media Holdings LLC | United States | 256 | 0 | 1 |
| 37568 | AS3443 | ESnet | United States | 256 | 0 | 1 |
| 37569 | AS3459 | South Texas Blood and Tissue Center | United States | 256 | 0 | 1 |
| 37570 | AS3470 | United States Department of Defense (DoD) | United States | 256 | 0 | 1 |
| 37571 | AS3472 | United States Department of Defense (DoD) | United States | 256 | 0 | 1 |
| 37572 | AS3515 | RTX BBN Technologies, Inc. | United States | 256 | 0 | 1 |
| 37573 | AS3620 | Verizon Business | United States | 256 | 0 | 1 |
| 37574 | AS3660 | Berry Global Inc | United States | 256 | 0 | 1 |
| 37575 | AS3708 | Pacific Biosciences of California, Inc. | United States | 256 | 0 | 1 |
| 37576 | AS3728 | LightEdge Onramp Access | United States | 256 | 0 | 1 |
| 37577 | AS3730 | Aquinas College | United States | 256 | 0 | 1 |
| 37578 | AS3751 | Phonak, LLC | United States | 256 | 0 | 1 |
| 37579 | AS3858 | Nebraska Public Power District | United States | 256 | 0 | 1 |
| 37580 | AS3916 | Joint Intelligence Center Pacific | United States | 256 | 0 | 1 |
| 37581 | AS3976 | I.Net Technologies Inc. | South Korea | 256 | 0 | 1 |
| 37582 | AS4040 | Korea Telecom | South Korea | 256 | 0 | 1 |
| 37583 | AS4182 | MLSListings inc. | United States | 256 | 0 | 1 |
| 37584 | AS4354 | UNIVERSAL HEALTH SERVICES | United States | 256 | 0 | 1 |
| 37585 | AS4505 | WHDH-TV | United States | 256 | 0 | 1 |
| 37586 | AS4576 | Michael & Susan Dell Foundation | United States | 256 | 0 | 1 |
| 37587 | AS4578 | NETCENTER | United States | 256 | 0 | 1 |
| 37588 | AS4645 | HKNet Co. Ltd |  Hong Kong SAR China | 256 | 0 | 1 |
| 37589 | AS4801 | Intek Pty Ltd |  Australia | 256 | 0 | 1 |
| 37590 | AS4828 | OCBC Bank (Hong Kong) Limited | Hong Kong SAR China | 256 | 0 | 1 |
| 37591 | AS4878 | Nokia Technologies | United States | 256 | 0 | 1 |
| 37592 | AS4879 | — | — | 256 | 0 | 1 |
| 37593 | AS4887 | Port of Corpus Christi Authority | United States | 256 | 0 | 1 |
| 37594 | AS4888 | United States Postal Service Office of Inspector General | United States | 256 | 0 | 1 |
| 37595 | AS4890 | Richline Group Inc | United States | 256 | 0 | 1 |
| 37596 | AS4891 | Port of Houston Authority of Harris County, Texas | United States | 256 | 0 | 1 |
| 37597 | AS4893 | DRW Holdings, LLC | United States | 256 | 0 | 1 |
| 37598 | AS4902 | CONSERVATION INTERNATIONAL FOUNDATION | United States | 256 | 0 | 1 |
| 37599 | AS4923 | SCF | United States | 256 | 0 | 1 |
| 37600 | AS4940 | IAP World Service Inc | United States | 256 | 0 | 1 |