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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,163 |
| 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 |
| 228 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 396 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,707 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,953 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,418 |
| 256 |
| — |
| 1 |
| AS14538US | HEC-NETWORK - Harrisonburg Electric Commission | 256 | — | 1 |
| AS399370US | KIRKLAND-ELLIS-SF - Kirkland & Ellis LLP | 256 | — | 1 |
| AS26319US | CHFCU - CoastHills Federal Credit Union | 256 | — | 1 |
| AS3858US | NPPDNET - Nebraska Public Power District | 256 | — | 1 |
| AS32604US | UWALKIN - uwalkin IT Solutions | 256 | — | 1 |
| AS396375US | LCSVA - Lynchburg City Schools | 256 | — | 1 |
| AS23443US | SCMG-SAV - South Coast Medical Group LLC | 256 | — | 1 |
| AS55240US | UNIFOCUS - UniFocus LP | 256 | — | 1 |
| AS63413US | EROOOM - eRoom Securities LLC | 256 | — | 1 |
| AS32711US | WCGNC - Wake County Government | 256 | — | 1 |
| AS13722US | DEFAULTROUTE - Default Route, LLC | 256 | 65.5K | 2 |
| AS400311US | IRN - EDISON PROPERTIES, LLC | 256 | — | 1 |
| AS26780US | KMOB - Knobbe, Martens, Olson & Bear, LLP. | 256 | — | 1 |
| AS55133US | ST-CROIX-CENTRAL-SCHOOL-DISTRICT - St. Croix Central School District | 256 | — | 1 |
| AS16872US | PIKE-EXTERNAL-BGP-RAL - Pike Enterprises, LLC | 256 | — | 1 |
| AS395300US | MADONNA-REHABILITATION-HOSPITAL - Madonna Rehabilitation Hospital | 256 | — | 1 |
| AS19912US | SKYPACKET-MCKEAN - SkyPacket | 256 | — | 1 |
| AS46922US | GCM-ASN - Gladius Capital Management, LP | 256 | — | 1 |
| AS401716US | CAL-STO - State Treasurer's Office | 256 | — | 1 |
| AS36174US | BAPTISTHEALTH - Baptist Health System | 256 | — | 1 |
| AS398405US | MMH-BGP-01 - Montrose Memorial Hospital | 256 | — | 1 |
| AS46448US | TMC-104 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS400483US | APOG-VISTA-DEL-CAMPO - Apogee Telecom Inc. | 256 | — | 1 |
| AS399373US | GIGCASTAUS-01 - Gigcasters LLC | 256 | — | 1 |
| AS397345US | TCS - THE CONTAINER STORE, INC | 256 | — | 1 |
| AS22862US | CLINTON-CITY-SCHOOLS - Clinton City Schools | 256 | — | 1 |
| AS62901US | MOELIS-CO - Moelis & Company Holdings LP | 256 | — | 1 |
| AS398980US | OSINET - OSI Holdings LLC | 256 | 256 | 2 |
| AS394627US | ASN-UCC - United Conveyor Corporation | 256 | — | 1 |
| AS22779US | JERICH-EU - Jerich USA Inc. | 256 | — | 1 |
| AS63487US | FELLOWES-ASN - Fellowes Inc. | 256 | — | 1 |
| AS25628US | CDP - Collier County Clerk of the Circuit Court | 256 | — | 1 |
| AS25744US | LOGIC-SPRINGS-TECHNOLOGIES - Logic Springs Technologies | 256 | — | 1 |
| AS17125US | LOGIS-ASN-01 - Logistics Plus, Inc. | 256 | — | 1 |
| AS398286US | LOCKARD-ASN-1 - Lockard, LLC. | 256 | — | 1 |
| AS16315US | MULTITEL - MultiTEL LLC | 256 | — | 1 |
| AS46850US | MILKCAT - MilkCat Networks LLC | 256 | — | 1 |
| AS16428US | SFS-AS1 - Store Financial Services, LLC | 256 | — | 1 |
| AS1700US | RICE-AS1700 - Rice University | 256 | — | 1 |
| AS21746US | MANCON-COX-CAVALIER-FAILOVER - Mancon | 256 | — | 1 |
| AS54445US | DIERBERGS - Dierbergs | 256 | — | 1 |
| AS396866US | OZARKS-ELECTRIC-COOP - Ozarks Electric Cooperative Corporation | 256 | — | 1 |
| AS401442US | SPUR - Spur Intelligence Corporation | 256 | 2 | 3 |
| AS63261US | GHCO-DCA - Graham Holdings Company | 256 | — | 1 |
| AS32324US | CITYCERRITOS - CITY OF CERRITOS | 256 | — | 1 |
| AS62493US | COBNET-ASN-2 - City of Bryan, Texas | 256 | — | 1 |