Unclassified
Not enough sources, unclear purpose, or conflicting classifications
- ASNs
- 87,655
- 69.5% of all ASNs
- Routed ASNs
- 53,984
- 61.6% of this type
- IPv4 addresses
- 916.1M
- 26.7% of global
- IPv6 /48s
- 3.59B
- 29.6% of global
Routing data · Oct 25, 2026, 18:20 UTC
Unclassified ASN ranking
| Rank | ASN | Name | Country/region | IPv4 addresses | IPv6 /48s | Prefixes |
|---|---|---|---|---|---|---|
| 56251 | AS3993 | Kitchener-Waterloo Municipal Area Network |  Canada | 0 | 0 | 0 |
| 56252 | AS3994 | Internetworsks, Inc. |  United States | 0 | 0 | 0 |
| 56253 | AS3995 | Interweb Corporation | United States | 0 | 0 | 0 |
| 56254 | AS3996 | Florida Information Resource Network | United States | 0 | 0 | 0 |
| 56255 | AS3997 | Association of Computing Machines | United States | 0 | 0 | 0 |
| 56256 | AS3998 | CityNet, Inc. | United States | 0 | 0 | 0 |
| 56257 | AS4000 | Cogent Communications, LLC | United States | 0 | 0 | 0 |
| 56258 | AS4001 | Cogent Communications, LLC | United States | 0 | 0 | 0 |
| 56259 | AS4002 | Cogent Communications, LLC | United States | 0 | 0 | 0 |
| 56260 | AS4003 | Cogent Communications, LLC | United States | 0 | 0 | 0 |
| 56261 | AS4005 | Cogent Communications, LLC | United States | 0 | 0 | 0 |
| 56262 | AS4006 | Cogent Communications, LLC | United States | 0 | 0 | 0 |
| 56263 | AS4008 | Universal Internet, Inc | United States | 0 | 0 | 0 |
| 56264 | AS4009 | Internetworsks, Inc. | United States | 0 | 0 | 0 |
| 56265 | AS4011 | Headquarters, USAISC | United States | 0 | 0 | 0 |
| 56266 | AS4012 | DCM | United States | 0 | 0 | 0 |
| 56267 | AS4013 | Galaxy Access Network | United States | 0 | 0 | 0 |
| 56268 | AS4014 | B3 Corporation | United States | 0 | 0 | 0 |
| 56269 | AS4017 | Verizon Business | United States | 0 | 0 | 0 |
| 56270 | AS4018 | Defence Intelligence Agency | United States | 0 | 0 | 0 |
| 56271 | AS4019 | Institute of International Education | United States | 0 | 0 | 0 |
| 56272 | AS4020 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56273 | AS4021 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56274 | AS4022 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56275 | AS4023 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56276 | AS4024 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56277 | AS4025 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56278 | AS4026 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56279 | AS4027 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56280 | AS4028 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56281 | AS4029 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56282 | AS4030 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56283 | AS4031 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56284 | AS4032 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56285 | AS4033 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56286 | AS4034 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56287 | AS4035 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56288 | AS4036 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56289 | AS4037 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56290 | AS4038 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 56291 | AS4039 | — | — | 0 | 0 | 0 |
| 56292 | AS4041 | The Little Garden | United States | 0 | 0 | 0 |
| 56293 | AS4042 | Vero Broadband | United States | 0 | 0 | 0 |
| 56294 | AS4044 | Acquired Knowledge Systems, Inc. | United States | 0 | 0 | 0 |
| 56295 | AS4045 | StarNet Communications, Inc. | United States | 0 | 0 | 0 |
| 56296 | AS4047 | Community Information & Referral | United States | 0 | 0 | 0 |
| 56297 | AS4048 | CenturyLink Communications, LLC | United States | 0 | 0 | 0 |
| 56298 | AS4050 | OMNINET COMMUNICATIONS | United States | 0 | 0 | 0 |
| 56299 | AS4051 | U. S. Air Force | United States | 0 | 0 | 0 |
| 56300 | AS4052 | Rovi Corporation | United States | 0 | 0 | 0 |