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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| NETINF-TRANSIT-AS - NetInformatik Inc. |
| 5.4K |
| 1.5K |
| 18 |
| AS40850US | AS-UPIX-40850 - UPIX NETWORKS INTERNATIONAL LLC | 5.4K | 81.9K | 16 |
| AS62516US | ABB-ASN - Alamo Broadband Inc. | 5.4K | 65.5K | 7 |
| AS62811US | MTG - Mercury Technology Group, Inc. | 5.4K | — | 8 |
| AS29949US | BFS-49-29949 - Broadridge Financial Solutions, Inc. | 5.4K | — | 6 |
| AS54045US | WAVETECHSYSTEMS - Wavetech Systems, LLC. | 5.4K | — | 6 |
| AS396185US | PEMTEL - GILES-CRAIG COMMUNICATIONS INC. | 5.4K | — | 13 |
| AS402265US | MUTANET - Mutanet LLC | 5.4K | — | 21 |
| AS11589US | STOWE-COMMUNICATIONS - Stowe Communications LLC | 5.4K | — | 7 |
| AS22244US | MOTOROLA-MOBILITY - Motorola, Inc. | 5.4K | — | 6 |
| AS25687US | KVH02842 - KVH INDUSTRIES,INC. | 5.4K | 1 | 12 |
| AS399296US | RD-BM - Rackdog, LLC | 5.4K | 1 | 21 |
| AS21504US | BESSEMER-GROUP-INCORPORATED - The Bessemer Group, Inc. | 5.4K | — | 20 |
| AS26243US | INTELSAT-S - Intelsat | 5.4K | — | 13 |
| AS205993US | CAFETECNOLOGIA Cafe Tecnologia LLC | 5.4K | — | 12 |
| AS30548US | ARUBA - ARUBA NETWORKS, INC. | 5.4K | 90 | 13 |
| AS54142US | WHITE-CLOUD-COMMUNICATIONS - White Cloud Communications US, LLC | 5.4K | — | 6 |
| AS40311US | VIASAT-3 - ViaSat,Inc. | 5.4K | — | 11 |
| AS54711US | HMS - Healthcare Management Systems, Inc. | 5.4K | — | 4 |
| AS53833US | ICISD - Ionia County ISD | 5.4K | — | 10 |
| AS25716US | INGERSOLL-RAND - Trane Technologies Company LLC | 5.4K | — | 6 |
| AS33321US | ZAYO-33321 - Zayo Bandwidth | 5.4K | — | 6 |
| AS5655US | DECADE-DOM - Decade Communications, Inc. | 5.4K | — | 20 |
| AS395344US | IVANTI-BD - Ivanti, Inc. | 5.4K | — | 12 |
| AS4557US | SOUTHEAST-TEXAS-GIGAPOP - Rice University | 5.4K | 259 | 10 |
| AS20097US | CITY-OF-TULSA - City of Tulsa | 5.4K | — | 3 |
| AS400190US | FREEPORT-MCMORAN-INC - Freeport-McMoRan Inc. | 5.4K | 4.1K | 11 |
| AS1416US | CHICAGO-PUBLIC-SCHOOLS - Chicago Public Schools | 5.4K | — | 10 |
| AS32287US | SOLANA-CITIPLEX - Citigroup Inc. | 5.4K | — | 21 |
| AS30305US | LPS-1 - Black Knight IP Holding Company, LLC | 5.4K | — | 19 |
| AS13431US | MILLENNIUM-AS - Millennium Partners, L.P. | 5.4K | — | 18 |
| AS26244US | BGMU - Bowling Green Municipal Utilities | 5.4K | — | 8 |
| AS31872US | VANTIVE-HEALTHCARE - Vantive Health | 5.4K | — | 21 |
| AS33717US | CHT-GLOBAL - Chunghwa Telecom Global, INC | 5.4K | — | 21 |
| AS393657US | COLORADOMESAUNIVERSITY - Colorado Mesa University | 5.4K | 16 | 19 |
| AS31942US | HYPERFIBER-01 - HyperFiber | 5.4K | 4.6K | 41 |
| AS30513US | DYNAMIC-INTERNET - DYNAMIC INTERNET | 5.4K | 65.5K | 9 |
| AS54744US | IDS-AS1 - EPLUS, Inc. | 5.4K | — | 7 |
| AS62802US | MST-JCMAIN - Macy's Systems and Technology, Inc. | 5.4K | — | 15 |
| AS19701US | YODLEE - Yodlee Inc. | 5.4K | — | 18 |
| AS4583US | THOMSON-REUTERS - West Publishing Corporation | 5.4K | — | 7 |
| AS32255US | PPLNET-AS - PPL Corporation | 5.4K | — | 14 |
| AS62763US | ABBVIE - AbbVie, Inc. | 5.4K | — | 14 |
| AS63117US | CDI - Churchill Downs Incorporated | 5.4K | — | 8 |
| AS393938US | SSL-AS - SPACE SYSTEMS/LORAL, INC. | 5.4K | — | 6 |
| AS25868US | ACE-002 - Ace Data Centers II, L.L.C. | 5.4K | — | 3 |
| AS7838US | USAA - United Services Automobile Association | 5.4K | — | 21 |