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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. | 211.2M | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,240 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,941 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| 1K |
| — |
| 4 |
| AS26522US | SU-ASN-1 - Stevenson University | 1K | 4.1K | 5 |
| AS64247US | UW-RESEARCH - University of Washington | 1K | — | 1 |
| AS46833US | SENSUS-DATACENTERS - Sensus USA, Inc. | 1K | — | 2 |
| AS6652US | PIMA-COLLEGE - Pima Community College | 1K | — | 1 |
| AS13467US | OTA-BGP-01 - Oklahoma Turnpike Authority | 1K | — | 3 |
| AS19216US | REVLON-AS - Revlon Consumer Products Corp. | 1K | — | 4 |
| AS397793US | ASN-SWBNO-01 - Sewerage and Water Board of New Orleans | 1K | — | 2 |
| AS46083US | MCCARHTY-BURGESS-WOLFF - McCarthy, Burgess & Wolff, Inc. | 1K | — | 1 |
| AS62574US | DMBGP - Data Management | 1K | — | 2 |
| AS400496US | AMERICANFIBERNET - American Fiber Network, Inc. | 1K | 69.6K | 6 |
| AS399183US | DEEPINTENT - DeepIntent, Inc. | 1K | 1 | 5 |
| AS13836US | ASN-13836 - Nasdaq, Inc. | 1K | — | 3 |
| AS20127US | KLEINSCHMIDT - Kleinschmidt Inc. | 1K | 2 | 6 |
| AS23351US | ANSYSNH - Ansys, Inc. - Lebanon NH | 1K | — | 1 |
| AS394908US | LAZBOYASN - La-Z-Boy Incorporated | 1K | — | 4 |
| AS3704US | ISPNET-AS - isp.net | 1K | — | 1 |
| AS63324US | CMTA-2 - Capital Metropolitan Transportation Authority | 1K | — | 1 |
| AS32715US | ICCNET - ILLINOIS CENTRAL COLLEGE | 1K | — | 3 |
| AS29788US | TELIANCE-COMMUNICATIONS - Teliance Communications Inc | 1K | — | 3 |
| AS13461US | OCC-AS13461 - The Options Clearing Corporation | 1K | — | 4 |
| AS402443US | AS-SIMPL-001 - SimpliFiber | 1K | — | 1 |
| AS19210US | SYNCHRONOSS - SYNCHRONOSS TECHNOLOGIES | 1K | 3 | 7 |
| AS11999US | REJISCOMM-NET - REJIS Commission | 1K | — | 4 |
| AS394994US | PIVOTAL - AgUplink, LLC. | 1K | — | 1 |
| AS4356US | EPICGA-HQ-AS - Epic Games Inc. | 1K | — | 1 |
| AS26820US | HERFF-JONES - Herff Jones | 1K | — | 4 |
| AS398647US | TRITECH-FIBER - Tritech Fiber | 1K | 4.1K | 5 |
| AS32932US | COVIUS-AS32932 - Covius Shared Services, LLC | 1K | 1 | 5 |
| AS40069US | AISNET - ASSURED INFORMATION SECURITY, INC. | 1K | 17 | 5 |
| AS395688US | BMWL-ESP-VLY-0 - Black Mesa Wireless, LLC. | 1K | — | 2 |
| AS30428US | NET2PHONE-GLOBAL-SERVICES - IDT Corporation | 1K | — | 1 |
| AS36195US | COINFARM-NEURALRACK-01 - NeuralRack AI | 1K | — | 4 |
| AS63229US | NOCTURNAL - Nocturnal Networks | 1K | 4.1K | 3 |
| AS17352US | APPLICATIONX - Application X | 1K | — | 4 |
| AS23262US | IWANINC-US - IWAN INC. | 1K | — | 2 |
| AS54342US | RNHN - Rural Nebraska Healthcare Network | 1K | — | 1 |
| AS397444US | AS-OKI - Overkill Interbuzz LLC | 1K | 10 | 14 |
| AS54800US | LAREDOISD - Laredo ISD | 1K | — | 4 |
| AS23083US | IRONCORE-LAX - Ironcore, Inc. | 1K | — | 3 |
| AS14378US | XVL - Xenon Ventures, LLC | 1K | — | 4 |
| AS394741US | ICCU - Idaho Central Credit Union | 1K | — | 3 |
| AS396995US | BGP - Morris Hospital | 1K | — | 3 |
| AS20267US | INTERNETSERVER - INTERNET SERVER CONNECTIONS INC | 1K | — | 1 |
| AS15092US | STAR2STAR - Sangoma US Inc. | 1K | 2 | 6 |
| AS16545US | OSSDS - OSSDS, LLC | 1K | — | 1 |
| AS33352US | CNF-BLOCK - GM Financial | 1K | — | 3 |