United States
ASNs registered in United States according to the RIRs. United States ranks #1 worldwide by IPv4 addresses.
- ASNs
- 32,584
- 25.8% of global
- Routed ASNs
- 18,895
- 58.0% of this country
- IPv4 addresses
- 1.55B
- 45.0% of global
- IPv6 /48s
- 1.75B
- 14.8% of global
Routing data · Oct 22, 2026, 16:22 UTC
Network type mixBy ASN count
- Education & research1,8985.8%68.1M IPv4
- Access ISP1,3584.2%260.9M IPv4
- Government1,2253.8%18.7M IPv4
- Enterprise9733.0%187.9M IPv4
- Transit / backbone7072.2%307.8M IPv4
- Content6392.0%133.9M IPv4
- Hosting / data center5141.6%49.8M IPv4
- Internet exchange1090.3%1,280 IPv4
- Nonprofit & community990.3%1.2M IPv4
- Unclassified25,06276.9%518.8M IPv4
Top ASNs in United States
| Rank | ASN | Name | Type | IPv4 addresses | IPv6 /48s | Prefixes |
|---|---|---|---|---|---|---|
| 20951 | AS4918 | Silver Creek Industries | Unclassified | 0 | 0 | 0 |
| 20952 | AS4921 | Exodus Communiations, Inc. | Unclassified | 0 | 0 | 0 |
| 20953 | AS4924 | Northern Indiana Internet Access, Inc. | Unclassified | 0 | 0 | 0 |
| 20954 | AS4925 | Fiserv Solutions, LLC | Unclassified | 0 | 0 | 0 |
| 20955 | AS4928 | Virginia Internet Services | Unclassified | 0 | 0 | 0 |
| 20956 | AS4929 | Benchmark Communications | Unclassified | 0 | 0 | 0 |
| 20957 | AS4930 | Digital Management Group | Unclassified | 0 | 0 | 0 |
| 20958 | AS4931 | Internet Services of Central Florida | Unclassified | 0 | 0 | 0 |
| 20959 | AS4932 | I3 Inc | Unclassified | 0 | 0 | 0 |
| 20960 | AS4933 | Logical Net Corporation | Unclassified | 0 | 0 | 0 |
| 20961 | AS4934 | Lanier Worldwide | Unclassified | 0 | 0 | 0 |
| 20962 | AS4936 | Howard County Library | Unclassified | 0 | 0 | 0 |
| 20963 | AS4937 | Internet America, Inc. | Unclassified | 0 | 0 | 0 |
| 20964 | AS4938 | Sprint Mid-Atlantic Telecom | Access ISP | 0 | 0 | 0 |
| 20965 | AS4941 | The CD-ROM Store | Unclassified | 0 | 0 | 0 |
| 20966 | AS4942 | B-Net Technologies | Unclassified | 0 | 0 | 0 |
| 20967 | AS4943 | Logix | Unclassified | 0 | 0 | 0 |
| 20968 | AS4945 | Harris Semiconductor Sector Telecommunications | Unclassified | 0 | 0 | 0 |
| 20969 | AS4946 | DedicatedSolutions.com LLC | Unclassified | 0 | 0 | 0 |
| 20970 | AS4947 | JAB Wireless, INC. | Access ISP | 0 | 0 | 0 |
| 20971 | AS4948 | Alpha Internet | Unclassified | 0 | 0 | 0 |
| 20972 | AS4950 | SPRINT, Business Serices Group | Unclassified | 0 | 0 | 0 |
| 20973 | AS4951 | SPRINT, Business Serices Group | Unclassified | 0 | 0 | 0 |
| 20974 | AS4952 | Intramedia | Unclassified | 0 | 0 | 0 |
| 20975 | AS4953 | Baltimore County Public Library | Unclassified | 0 | 0 | 0 |
| 20976 | AS4955 | Network Datalink, Inc. | Unclassified | 0 | 0 | 0 |
| 20977 | AS4956 | Logic Systems | Unclassified | 0 | 0 | 0 |
| 20978 | AS4957 | Internet Access of Ventura County | Unclassified | 0 | 0 | 0 |
| 20979 | AS4958 | Long Distance Savers | Unclassified | 0 | 0 | 0 |
| 20980 | AS4959 | Corporate Communications, Inc. | Unclassified | 0 | 0 | 0 |
| 20981 | AS4960 | PERnet Communications, Inc. | Unclassified | 0 | 0 | 0 |
| 20982 | AS4962 | Wink Communications Group, Inc. | Unclassified | 0 | 0 | 0 |
| 20983 | AS4963 | Internet Texoma | Unclassified | 0 | 0 | 0 |
| 20984 | AS4968 | Covington & Burling LLP | Unclassified | 0 | 0 | 0 |
| 20985 | AS4969 | OpenIX Route Servers | Internet exchange | 0 | 0 | 0 |
| 20986 | AS4970 | Thrivent Financial for Lutherans | Unclassified | 0 | 0 | 0 |
| 20987 | AS4971 | Network Pros, Inc. | Unclassified | 0 | 0 | 0 |
| 20988 | AS4973 | UNITED PARCEL SERVICE | Unclassified | 0 | 0 | 0 |
| 20989 | AS4975 | Computer Tech Services, Inc. | Unclassified | 0 | 0 | 0 |
| 20990 | AS4976 | Florida Imports Inc | Unclassified | 0 | 0 | 0 |
| 20991 | AS4978 | Global Datalink, Inc. | Unclassified | 0 | 0 | 0 |
| 20992 | AS4979 | GXS | Unclassified | 0 | 0 | 0 |
| 20993 | AS4981 | Verizon Business | Unclassified | 0 | 0 | 0 |
| 20994 | AS4982 | Jazzie Systems | Unclassified | 0 | 0 | 0 |
| 20995 | AS4984 | Ingress Communications, Inc. | Unclassified | 0 | 0 | 0 |
| 20996 | AS4987 | Hawaiian Telcom Services Company, Inc. | Unclassified | 0 | 0 | 0 |
| 20997 | AS4988 | Hawaiian Telcom Services Company, Inc. | Unclassified | 0 | 0 | 0 |
| 20998 | AS4990 | AT&T Enterprises, LLC | Unclassified | 0 | 0 | 0 |
| 20999 | AS4992 | Cogent Communications, LLC | Unclassified | 0 | 0 | 0 |
| 21000 | AS4993 | Cogent Communications, LLC | Unclassified | 0 | 0 | 0 |