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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,512 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,235 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,281 |
| — |
| — |
| 0 |
| AS14751US | ONECOM-CVT - Windstream Communications LLC | — | — | 0 |
| AS14764US | ROWE-MIBD02 - Rowe Furniture | — | — | 0 |
| AS14768US | NETSG-AS-AP - Network Solutions Group Pty Ltd | — | — | 0 |
| AS14802US | UMPQUABANK - UMPQUA BANK | — | — | 0 |
| AS14806US | COMMONWEALTH-OF-PA - Commonwealth of PA - OA / Integrated Network Management Services | — | — | 0 |
| AS14876US | DDNET-1 - Dell, Inc. | — | — | 0 |
| AS15018US | SEYFARTH-SHAW9 - Seyfarth Shaw LLP | — | — | 0 |
| AS15093US | NEWWAVECOMM2 - New Wave Communications | — | — | 0 |
| AS15271US | CENTENE-CORPORATION - Centene Corporation | — | — | 0 |
| AS16422US | NEWSKIES-NETWORKS - New Skies Satellites, Inc. | — | — | 0 |
| AS16457US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16473US | STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC | — | — | 0 |
| AS16494US | EME - En Masse Entertainment Inc. | — | — | 0 |
| AS16496US | COLORADOSTATEUNIV-SCONE - Colorado State University | — | — | 0 |
| AS16561US | ARIBANETWORK - SAP America Inc. | — | — | 0 |
| AS16635US | POMONA-02 - Pomona Consulting LLC | — | — | 0 |
| AS16670US | REG8-ESC - Region 8 Education Service Center | — | — | 0 |
| AS16672US | FEDBID - FedBid, Inc. | — | — | 0 |
| AS16709US | VIDALIA - Vidalia Labs LLC | — | — | 0 |
| AS16765US | BHN-16765-NA - Charter Communications, Inc | — | — | 0 |
| AS16779US | IBL-JC - Interactive Brokers LLC | — | — | 0 |
| AS16862US | ODESSA-COLLEGE-JUNIOR-COLLEGE-DISTRICT - Odessa College | — | — | 0 |
| AS16895US | SAN-BRUNO-CABLE - San Bruno Cable | — | — | 0 |
| AS16947US | MIMEOCOMINC - Mimeo.com, INC. | — | — | 0 |
| AS16974US | WESTSTAR-PHX-001 - WestStar Multimedia Entertainment, Inc. | — | — | 0 |
| AS16985US | LIGHTYEARAS - Fusion, LLC | — | — | 0 |
| AS17022US | SHELLBARK-ASN - Celadon Trucking Services, Inc. | — | — | 0 |
| AS17036US | AS-FIBERDASH - Fiberdash Networks LLC | — | — | 0 |
| AS17063US | BFM-OB-CUST-US - Bloomberg Financial Markets Limited Partnership | — | — | 0 |
| AS17081US | NKTR-AS02 - Nektar Therapeutics | — | — | 0 |
| AS17175US | NSS-UK - New Skies Satellites, Inc. | — | — | 0 |
| AS17183US | BP-529-17183 - ATC IP LLC | — | — | 0 |
| AS17233US | ATT-CERFNET-BLOCK - AT&T Enterprises, LLC | — | — | 0 |
| AS17256US | CIC-SCCA-AS - Creative Interconnect Communications LLC | — | — | 0 |
| AS17258US | ATT-MOBILITY-LLC-AS17258 - AT&T Enterprises, LLC | — | — | 0 |
| AS17337US | SCUFFLE - Scuffle | — | — | 0 |
| AS17392US | HOLW-GOLD - Holwell Shuster & Goldberg LLP | — | — | 0 |
| AS18549US | VAULT-HOST-AMS - Vault Host | — | — | 0 |
| AS18609US | NETAPP-ANYCAST - Net Applications, Inc. | — | — | 0 |
| AS18730US | VISANET-2 - VISA INTERNATIONAL SERVICE ASSOCIATION | — | — | 0 |
| AS18736US | WILMERHALE - Wilmer Cutler Pickering Hale and Dorr LLP | — | — | 0 |
| AS18802US | MUT-AMER - Mutual of America Life Insurance Company | — | — | 0 |
| AS18924US | SYMC-CPE2 - Avago Technologies U.S. Inc. | — | — | 0 |
| AS19073US | KYN-GTS - Kyndryl | — | — | 0 |
| AS19110US | AS19110 - Automatic Data Processing, Inc. | — | — | 0 |
| AS19129US | VISTABEAM-NET - VISTABEAM | — | — | 0 |