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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1K |
| — |
| 4 |
| AS22253US | IHIRELLC - IHIRE LLC | 1K | — | 1 |
| AS7233US | YAHOO-US - Yahoo | 1K | 2 | 4 |
| AS54375US | CENTRE-COLLEGE - Centre College | 1K | — | 3 |
| AS210781US | BRAINPS-AS Brain PEACE Science Foundation, Inc. | 1K | — | 3 |
| AS402075US | PEEKABO - Peekabo Networks | 1K | — | 4 |
| AS55024US | WSCC-AS1 - Walters State Community College | 1K | — | 3 |
| AS401244US | MEDINA-COUNTY-01 - Medina County | 1K | 256 | 3 |
| AS2002US | KYN-GTS - Kyndryl | 1K | — | 2 |
| AS35955US | RCLLTD - Royal Caribbean Cruises Ltd. | 1K | — | 4 |
| AS23462US | SAUNSTAR-PARKPLAZA - SaunStar Operating Company, LLC | 1K | — | 1 |
| AS40370US | BCDTRAVELINET1 - BCD Travel | 1K | — | 1 |
| AS63149US | AS-SILO - ScienceLogic, Inc | 1K | — | 4 |
| AS29762US | PRESIDIO-MGDSVCS - Presidio Networked Solutions LLC | 1K | — | 4 |
| AS1823US | HANNAH-MOTOR - Hannah Motor Company | 1K | — | 4 |
| AS400119US | IRV-NIDR - PIMCO | 1K | — | 4 |
| AS395382US | CFN-AS - COMMONWEALTH EQUITY SERVICES, INC. | 1K | — | 4 |
| AS53911US | NTK001 - NET TALK.COM INC. | 1K | — | 4 |
| AS54911US | SUPERNET-1 - SMR Communications Inc. | 1K | — | 4 |
| AS394542US | MS-FIBER - MS Fiber, LLC | 1K | 256 | 2 |
| AS142616US | MNI-AS-AP - Misaka Network, Inc. | 1K | 4.1K | 10 |
| AS22861US | CAMP-COMM-SERVICES - Camp Communication Services, INC | 1K | — | 4 |
| AS27297US | PGTECHNOLOGY - PG TECHNOLOGY, INC. | 1K | — | 4 |
| AS400571US | CADENCE-ATL - CDNS | 1K | — | 4 |
| AS396507US | EMERALD-ONION - Emerald Onion | 1K | 4.1K | 7 |
| AS63209US | KN-CLT-ASN - KODIAK NETWORKS, INC. | 1K | — | 4 |
| AS33222US | AS33222 - Ashley Furniture Industries, Inc. | 1K | — | 4 |
| AS19056US | IETF-49 - Qualcomm, Inc. | 1K | — | 1 |
| AS53527US | COUNTY-OF-LOS-ANGELES-SHERIFFS-DEPARTMENT - Los Angeles Sheriff's Department | 1K | — | 4 |
| AS23075US | CLIK - Clik Broadband, LLC | 1K | — | 1 |
| AS275US | NTTA-275 - NTT America, Inc. | 1K | 1 | 2 |
| AS11389US | HERITAGE-GALLERIES-AND-AUCTIONEERS - Heritage Capital Corporation | 1K | — | 4 |
| AS46424US | NJTA - New Jersey Turnpike Authority | 1K | — | 4 |
| AS36533US | 698ALEX - Computer Solutions | 1K | — | 1 |
| AS31832US | ASN-MDT - Member Driven Technologies | 1K | — | 1 |
| AS18562US | HAWTHORNE - Hawthorne Residents Cooperative Association Inc | 1K | — | 1 |
| AS21647US | LIGHTBOARD-SYRACUSE-IX - Lightboard Realty | 1K | 256 | 5 |
| AS40725US | UNIVERSAL-CONNECTIVITY-BGP - Universal Connectivity, Inc. | 1K | — | 4 |
| AS21968US | LAURINBURG - CITY OF LAURINBURG | 1K | — | 1 |
| AS393587US | ULTATG - Ulta, Inc. | 1K | — | 4 |
| AS26693US | TELCOM-WEST-LLC - Telcom West | 1K | — | 1 |
| AS53504US | PULSENET-OPTIBAND - PulseNET | 1K | — | 4 |
| AS399339US | AERON-01 - Taurus Technology Investment Partners | 1K | — | 4 |
| AS10896US | VERIFONE - Verifone, Inc. | 1K | — | 4 |
| AS395451US | HOSTIT - HostIT Servers | 1K | — | 1 |
| AS394620US | VCSVCS - VCSVCS Inc | 1K | — | 4 |
| AS30233US | PAYCHEX-O - Paychex Inc. | 1K | — | 1 |