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, 16:18 UTC
Unclassified ASN ranking
| Rank | ASN | Name | Country/region | IPv4 addresses | IPv6 /48s | Prefixes |
|---|---|---|---|---|---|---|
| 54051 | AS176 | Information Systems and Networks Corporation |  United States | 0 | 0 | 0 |
| 54052 | AS178 | University of Michigan | United States | 0 | 0 | 0 |
| 54053 | AS179 | University of Michigan | United States | 0 | 0 | 0 |
| 54054 | AS180 | University of Michigan | United States | 0 | 0 | 0 |
| 54055 | AS181 | Merit Network Inc. | United States | 0 | 0 | 0 |
| 54056 | AS182 | Merit Network Inc. | United States | 0 | 0 | 0 |
| 54057 | AS183 | Merit Network Inc. | United States | 0 | 0 | 0 |
| 54058 | AS184 | Merit Network Inc. | United States | 0 | 0 | 0 |
| 54059 | AS185 | Merit Network Inc. | United States | 0 | 0 | 0 |
| 54060 | AS189 | Level 3 Parent, LLC | United States | 0 | 0 | 0 |
| 54061 | AS191 | Navy Network Information Center (NNIC) | United States | 0 | 0 | 0 |
| 54062 | AS192 | Rochester Institute of Technology | United States | 0 | 0 | 0 |
| 54063 | AS193 | Lockheed Martin Corporation | United States | 0 | 0 | 0 |
| 54064 | AS198 | United States Department of Defense (DoD) | United States | 0 | 0 | 0 |
| 54065 | AS199 | Level 3 Parent | United States | 0 | 0 | 0 |
| 54066 | AS200 | Lumen AS200 | United States | 0 | 0 | 0 |
| 54067 | AS201 | Level 3 Parent, LLC | United States | 0 | 0 | 0 |
| 54068 | AS204 | Pittsburgh Supercomputing Center | United States | 0 | 0 | 0 |
| 54069 | AS207 | Computational Logic, Inc. | United States | 0 | 0 | 0 |
| 54070 | AS208 | Navy Network Information Center (NNIC) | United States | 0 | 0 | 0 |
| 54071 | AS212 | — | — | 0 | 0 | 0 |
| 54072 | AS214 | Navy Network Information Center (NNIC) | United States | 0 | 0 | 0 |
| 54073 | AS215 | Headquarters, USAISC | United States | 0 | 0 | 0 |
| 54074 | AS216 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54075 | AS218 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54076 | AS219 | Navy Network Information Center (NNIC) | United States | 0 | 0 | 0 |
| 54077 | AS220 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54078 | AS222 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54079 | AS227 | Headquarters, USAISC | United States | 0 | 0 | 0 |
| 54080 | AS230 | Merit Network Inc. | United States | 0 | 0 | 0 |
| 54081 | AS232 | Merit Network Inc. | United States | 0 | 0 | 0 |
| 54082 | AS233 | Merit Network Inc. | United States | 0 | 0 | 0 |
| 54083 | AS234 | NETHER-RESEARCH | United States | 0 | 0 | 0 |
| 54084 | AS235 | Merit Network Inc. | United States | 0 | 0 | 0 |
| 54085 | AS236 | Merit Network Inc. | United States | 0 | 0 | 0 |
| 54086 | AS238 | Merit Network Inc. | United States | 0 | 0 | 0 |
| 54087 | AS240 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54088 | AS241 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54089 | AS242 | SUPSHIP | United States | 0 | 0 | 0 |
| 54090 | AS245 | PRC Networking | United States | 0 | 0 | 0 |
| 54091 | AS246 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54092 | AS248 | IDDQD-AS |  European Union | 0 | 0 | 0 |
| 54093 | AS251 | IDDQD-AS | European Union | 0 | 0 | 0 |
| 54094 | AS253 | NTT America, Inc. | United States | 0 | 0 | 0 |
| 54095 | AS255 | Air Force Systems Networking | United States | 0 | 0 | 0 |
| 54096 | AS259 | SCUBED | United States | 0 | 0 | 0 |
| 54097 | AS261 | Renater | European Union | 0 | 0 | 0 |
| 54098 | AS263 | NTT America, Inc. | United States | 0 | 0 | 0 |
| 54099 | AS265 | Advanced Info. Technology Servcies | United States | 0 | 0 | 0 |
| 54100 | AS269 | Incremental Systems Corporation | United States | 0 | 0 | 0 |