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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) | 227.7M | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,109 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,674 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,430 |
| 256 |
| — |
| 1 |
| AS32993US | SIMONSFOUNDATION-FI - The Simons Foundation, Inc. | 256 | 1 | 2 |
| AS401051US | MEDPACE-NA1 - Medpace, Inc. | 256 | — | 1 |
| AS56773US | mox Mox Networks, LLC | 256 | — | 1 |
| AS53754US | LCPA-AS - Lincoln Center for the Performing Arts, Inc. | 256 | — | 1 |
| AS401257US | LP-SUBNET--69 - LIBOR | 256 | — | 1 |
| AS401132US | BL-RUBI - BulletServers LLC | 256 | 1 | 2 |
| AS398461US | PROLOGIC-CORE - Prologic Technology Services LLC | 256 | 4.1K | 2 |
| AS22763US | BGP-DUCKS-INC - DUCKS UNLIMITED, INC. | 256 | — | 1 |
| AS393367US | SJMC-TCHD-3 - Teton County Hospital District | 256 | — | 1 |
| AS400652US | KRV-GSH-01 - Keystone RV Company | 256 | — | 1 |
| AS53718US | ECH-AS - Evangelical Community Hospital | 256 | — | 1 |
| AS63418US | MAN-INVESTMENTS-US - Man Investments Holdings, Inc | 256 | — | 1 |
| AS394665US | MOSSASN - Moss & Associates, LLC | 256 | — | 1 |
| AS20462US | OPULENT-CLOUD - Opulent Cloud | 256 | — | 1 |
| AS26964US | INGRAMBARGE-1 - INGRAM BARGE COMPANY | 256 | — | 1 |
| AS22796US | CCC-HART - Campus Crusade for Christ, Inc. | 256 | 1 | 2 |
| AS32728US | PALOMA-PARTNERS - Paloma Partners | 256 | — | 1 |
| AS4182US | MLSLI-2 - MLSListings inc. | 256 | — | 1 |
| AS46775US | DCI - Drummond Company, Inc. | 256 | — | 1 |
| AS22668US | SPARTA-COMMUNITY-HOSPITAL - Sparta Community Hospital | 256 | — | 1 |
| AS32207US | MIDDLESEX-HOSPITAL - MIDDLESEX HEALTH SYSTEM, INC. | 256 | — | 1 |
| AS399563US | BUNN-O-001 - BUNN-O-MATIC CORPORATION | 256 | — | 1 |
| AS63281US | VERMONT-JUDICIARY-01 - Vermont Judiciary | 256 | — | 1 |
| AS401099US | HTC-IS-01 - Horry Telephone Cooperative, Inc. | 256 | — | 1 |
| AS398702US | SRH-ASN - Scottish Rite Hospital for Children | 256 | — | 1 |
| AS31948US | HQ - Santa Ana Star Casino Hotel | 256 | — | 1 |
| AS16404US | ALBRIGHT-COLLEGE - Albright College | 256 | — | 1 |
| AS26419US | BDA-INC - BDa | 256 | — | 1 |
| AS7356US | SIKLA-AS - Sikla Tech Limited | 256 | 256 | 2 |
| AS1080US | WPCCU-ASN-01 - Water and Power Community Credit Union | 256 | — | 1 |
| AS402567US | THANKYOU-AI - 39 | 256 | — | 1 |
| AS400947US | SMC-ASN - Shannon Medical Center | 256 | — | 1 |
| AS14296US | SPRINGFD - Spring Fire Department | 256 | 16 | 2 |
| AS29700US | CYPRESS-SEMICONDUCTOR - Infineon technologies Americas Corp | 256 | — | 1 |
| AS397791US | PROASSURANCE - ProAssurance Corporation | 256 | — | 1 |
| AS399134US | FF - Fitchburg Fiber LLC | 256 | — | 1 |
| AS46689US | LEE-WIRELESS-01 - Lee Wireless, LLC | 256 | 256 | 2 |
| AS36325US | OCNL-AS36325 - Operations & Compliance Network LLC | 256 | — | 1 |
| AS397371US | HCDE-TEXAS - Harris County Department of Education Public Facil | 256 | — | 1 |
| AS30611US | COMPASS-ROSE-LLC - Compass Rose Asset Management, LP | 256 | — | 1 |
| AS30498US | STRAND - STRAND BOOK STORE, INC. | 256 | — | 1 |
| AS32585US | KSCM-AS - King Street Capital Management, L.P. | 256 | — | 1 |
| AS401754US | HAMKING - Double Dog Adventures, LLC | 256 | 256 | 2 |
| AS27545US | LV-INET - City National Bank | 256 | — | 1 |
| AS402421US | FUTONET - FUTO | 256 | — | 1 |
| AS30546US | INFINEON TECHNOLOGIES AMERICAS CORP - Infineon technologies Americas Corp | 256 | 1 | 2 |