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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,291 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,268 |
| 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 | 411 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,732 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,968 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) |
| — |
| — |
| 0 |
| AS27140US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27151US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27156US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27160US | IPS-BB - Fiserv Solutions, LLC | — | — | 0 |
| AS27188US | CUOFCO-ASN - Credit Union of Colorado | — | — | 0 |
| AS27264US | MI-CONNECTION - TDS TELECOM | — | — | 0 |
| AS27276US | ASN-LOUDPACKET - Loud Packet Inc. | — | — | 0 |
| AS27383US | VERADIGM-LLC - Veradigm Inc. | — | — | 0 |
| AS27472US | GTAM - GoldenTree Asset Management LLC | — | — | 0 |
| AS27503US | ICI-LA - Incomm | — | — | 0 |
| AS27550US | ORGILL-FG - Orgill, Inc. | — | — | 0 |
| AS27573US | OSLA-AS-1 - OKLAHOMA STUDENT LOAN AUTHORITY | — | — | 0 |
| AS27585US | WEIL - Weil, Gotshal & Manges LLP | — | — | 0 |
| AS27599US | FIRELIGHT - Uncommon Technology Incorporated | — | — | 0 |
| AS27635US | CHARTER-27635-NA - Charter Communications LLC | — | — | 0 |
| AS29719US | XTIVA - Xtiva Financial Systems, Inc. | — | — | 0 |
| AS29720US | PDS - Paragon Development Systems, Inc | — | — | 0 |
| AS29725US | DMNS-BGP - Denver Museum of Nature and Science | — | — | 0 |
| AS29793US | BRIDGE-3640-ASN - Windstream Communications LLC | — | — | 0 |
| AS29895US | WOW-INTERNET-COL - WideOpenWest Finance LLC | — | — | 0 |
| AS29958US | IPN-TELECOM-PHX - IPN Telecom, LLC | — | — | 0 |
| AS29995US | TAXACT1 - 2nd Story Software, Inc. | — | — | 0 |
| AS30024US | CARRIOX-ASN - Carriox Services LLC | — | — | 0 |
| AS30063US | DEDICONET - SWITCH, LTD | — | — | 0 |
| AS30130US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS30160US | WINDSTREAM - Windstream Communications LLC | — | — | 0 |
| AS30316US | PACKETIX - PACKETSTREAM LLC | — | — | 0 |
| AS30360US | CHARTER-30360-NA - Charter Communications LLC | — | — | 0 |
| AS30424US | WEST-JEFFERSON-MEDICAL-CENTER-LOUISIANA - West Jefferson Medical Center | — | — | 0 |
| AS30427US | LYNDA-COM - LinkedIn Corporation | — | — | 0 |
| AS30463US | VITIX - VITIX LLC | — | — | 0 |
| AS30511US | ISC-F-LGA2 - Internet Systems Consortium, Inc. | — | — | 0 |
| AS30565US | WHIZKIDS-TECH - Whizkids Tech | — | — | 0 |
| AS30670US | CHARTER-30670-NA - Charter Communications LLC | — | — | 0 |
| AS30682US | PEARSON-ECOLLEGE - NCS Pearson Inc. | — | — | 0 |
| AS31745US | ZENPLI-NAR-PRD - Zenpli | — | — | 0 |
| AS31748US | COIX-RS - COIX | — | — | 0 |
| AS31876US | K2SHARE-TXRICVRC - K2Share LLC | — | — | 0 |
| AS31984US | ASAVIE-TECHNOLOGIES-INC - Akamai Technologies, Inc. | — | — | 0 |
| AS32147US | HMIC - Nationwide Mutual Insurance Company | — | — | 0 |
| AS32154US | NATIONAL-RESEARCH-CORPORATION - National Research Corp. | — | — | 0 |
| AS32183US | CTI-AS-3 - CTI Networks Inc. | — | — | 0 |
| AS32214US | AGIO - Agio LLC | — | — | 0 |
| AS32275US | MCKINSEY-US-STP - McKinsey & Company, Inc. | — | — | 0 |
| AS32490US | HI-SPEED-US - South Central Communications, Inc. | — | — | 0 |
| AS32574US | DIGI-AS32574 - DigiCert, Inc. | — | — | 0 |