Unclassified
Not enough sources, unclear purpose, or conflicting classifications
- ASNs
- 87,658
- 69.5% of all ASNs
- Routed ASNs
- 53,996
- 61.6% of this type
- IPv4 addresses
- 915.4M
- 26.7% of global
- IPv6 /48s
- 3.59B
- 29.0% of global
Routing data · Oct 26, 2026, 14:22 UTC
Unclassified ASN ranking
| Rank | ASN | Name | Country/region | IPv4 addresses | IPv6 /48s | Prefixes |
|---|---|---|---|---|---|---|
| 54251 | AS522 | Air Force Systems Networking |  United States | 0 | 0 | 0 |
| 54252 | AS523 | Headquarters, USAISC | United States | 0 | 0 | 0 |
| 54253 | AS524 | Cirion Technologies Solutions, LLC | United States | 0 | 0 | 0 |
| 54254 | AS525 | Headquarters, USAISC | United States | 0 | 0 | 0 |
| 54255 | AS526 | Headquarters, USAISC | United States | 0 | 0 | 0 |
| 54256 | AS527 | United States Department of Defense (DoD) | United States | 0 | 0 | 0 |
| 54257 | AS528 | IDDQD-AS |  European Union | 0 | 0 | 0 |
| 54258 | AS529 | IDDQD-AS | European Union | 0 | 0 | 0 |
| 54259 | AS530 | Headquarters, USAISC (AS530) | United States | 0 | 0 | 0 |
| 54260 | AS531 | Headquarters, USAISC | United States | 0 | 0 | 0 |
| 54261 | AS532 | United States Department of Defense (DoD) | United States | 0 | 0 | 0 |
| 54262 | AS533 | Headquarters, USAISC | United States | 0 | 0 | 0 |
| 54263 | AS534 | Headquarters, USAISC | United States | 0 | 0 | 0 |
| 54264 | AS535 | Headquarters, USAISC | United States | 0 | 0 | 0 |
| 54265 | AS536 | Headquarters, USAISC | United States | 0 | 0 | 0 |
| 54266 | AS537 | Headquarters, USAISC | United States | 0 | 0 | 0 |
| 54267 | AS539 | Headquarters, USAISC | United States | 0 | 0 | 0 |
| 54268 | AS540 | United States Department of Defense (DoD) | United States | 0 | 0 | 0 |
| 54269 | AS541 | Intelligenetics Inc. | United States | 0 | 0 | 0 |
| 54270 | AS548 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54271 | AS550 | Los Alamos National Laboratory | United States | 0 | 0 | 0 |
| 54272 | AS551 | Parsons Corporation | United States | 0 | 0 | 0 |
| 54273 | AS552 | United States Department of Defense (DoD) | United States | 0 | 0 | 0 |
| 54274 | AS554 | California Internet Federation | United States | 0 | 0 | 0 |
| 54275 | AS555 | VTSII | United States | 0 | 0 | 0 |
| 54276 | AS556 | USC/Information Sciences Institute | United States | 0 | 0 | 0 |
| 54277 | AS560 | Level 3 Parent, LLC | United States | 0 | 0 | 0 |
| 54278 | AS561 | HP Inc. | United States | 0 | 0 | 0 |
| 54279 | AS562 | HP Inc. | United States | 0 | 0 | 0 |
| 54280 | AS563 | HP Inc. | United States | 0 | 0 | 0 |
| 54281 | AS564 | United States Department of Defense (DoD) | United States | 0 | 0 | 0 |
| 54282 | AS568 | United States Department of Defense (DoD) | United States | 0 | 0 | 0 |
| 54283 | AS569 | United States Department of Defense (DoD) | United States | 0 | 0 | 0 |
| 54284 | AS570 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54285 | AS573 | United States Department of Defense (DoD) | United States | 0 | 0 | 0 |
| 54286 | AS574 | Pittsburgh Supercomputing Center | United States | 0 | 0 | 0 |
| 54287 | AS576 | United States Department of Defense (DoD) | United States | 0 | 0 | 0 |
| 54288 | AS578 | — | — | 0 | 0 | 0 |
| 54289 | AS579 | Netcierge, LLC | United States | 0 | 0 | 0 |
| 54290 | AS580 | United States Department of Defense (DoD) | United States | 0 | 0 | 0 |
| 54291 | AS581 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54292 | AS582 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54293 | AS583 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54294 | AS584 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54295 | AS585 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54296 | AS586 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54297 | AS587 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54298 | AS590 | IDDQD-AS | European Union | 0 | 0 | 0 |
| 54299 | AS591 | NSTN, Inc. |  Canada | 0 | 0 | 0 |
| 54300 | AS592 | NNIC AS592 | United States | 0 | 0 | 0 |