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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS403086US | LUCID-COMPUTING - Lucid | — | — | 0 |
| AS14482US | LAB47 - Lab47 | — | 256 | 1 |
| AS63323US | CAPTIONCALL - CaptionCall | — | — | 0 |
| AS27084US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS18740US | JEROMES-FURNITURE - Jerome's Furniture | — | — | 0 |
| AS16651US | SOCKET-2 - Socket Holdings Corporation | — | — | 0 |
| AS17062US | HPINC - HP Inc. | — | — | 0 |
| AS17041US | AS-LRCOMM-ORIG - L.R. Communications, Inc. | — | — | 0 |
| AS16879US | SUSQ-CTALK - Susquehanna International Group, LLP | — | — | 0 |
| AS17013US | WILMINGTON-COLLEGE-OH - Wilmington College | — | — | 0 |
| AS29738US | DATABANK-PIT - DataBank Holdings, Ltd. | — | — | 0 |
| AS29722US | ACLAB2 - Ascend Clinical, LLC | — | — | 0 |
| AS27322US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS16694US | ICSI - ICSI | — | — | 0 |
| AS14394US | KBCFP-NYC - KBC BANK N.V. | — | — | 0 |
| AS27063US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS30607US | 302-DIRECT-MEDIA-ASN - Cisco OpenDNS, LLC | — | — | 0 |
| AS26983US | HPINC - HP Inc. | — | — | 0 |
| AS30235US | TWINSERVERS - Twinservers Hosting Solutions Inc. | — | — | 0 |
| AS30222US | CONTE-25-XERO-PROJECT - Contegix | — | — | 0 |
| AS30055US | CROSSLAKECOMMUNICATIONS - Crosslake Communications | — | — | 0 |
| AS19003US | IHSENERGY-CALGARY - IHS Global, Inc. | — | — | 0 |
| AS23073US | PGI-AS-1 - PGI Solutions LLC | — | — | 0 |
| AS22999US | TBS-ASN - Total Bank Solutions, LLC | — | — | 0 |
| AS22762US | OFIDEN - Invesco Group Services, Inc. | — | — | 0 |
| AS21524US | WSP - Parsons Brinckerhoff Inc. | — | — | 0 |
| AS395684US | SUNEAST - Sun East | — | — | 0 |
| AS395504US | AMERICANAGCREDIT - AMERICAN AGCREDIT ACA | — | — | 0 |
| AS395574US | BAGE-UPBGP - BAGE CLOUD LLC | — | — | 0 |
| AS19466US | EZ-PING-ASN - EZ Ping Networks Inc | — | — | 0 |
| AS19448US | GOOGLE-FIBER - Google Fiber Inc. | — | — | 0 |
| AS19199US | PANAMSAT-ATL - PanAmSat Corporation | — | — | 0 |
| AS395239US | SWAG-FIBER - SWAG Fiber, LLC | — | — | 0 |
| AS21596US | AHCA - AHCA | — | — | 0 |
| AS21583US | HOUSTON-COLO - Vonage Holdings, Inc. | — | — | 0 |
| AS20476US | RESERVED-IPADMIN - Level 3 Parent, LLC | — | — | 0 |
| AS200790US | BYTEFIZZ BYTEFIZZ LLC | — | 269 | 11 |
| AS20013US | CYRUSONE - CyrusOne LLC | — | — | 0 |
| AS19981US | AS-WFC-LHC-AZ-01 - WireFree Communications Inc. | — | — | 0 |
| AS19762US | PHYSGUN - Physgun LLC | — | — | 0 |
| AS20250US | RMWC-NET - Randolph College | — | — | 0 |
| AS16474US | RESPONSYS-1 - Responsys Inc. | — | — | 0 |
| AS16442US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS18906US | CONCORD-AS - Concord Management Ltd | — | — | 0 |
| AS15004US | GTELCO - Gunnison Telephone Company | — | — | 0 |
| AS14468US | RIDER-UNIVERSITY - Rider University | — | — | 0 |