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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,372 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,235 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,275 |
| — |
| — |
| 0 |
| AS27635US | CHARTER-27635-NA - Charter Communications LLC | — | — | 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 |
| AS30063US | DEDICONET - SWITCH, LTD | — | — | 0 |
| AS30130US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS30160US | WINDSTREAM - Windstream Communications LLC | — | — | 0 |
| AS30270US | INOVADATA - Inova Data Solutions, Inc. | — | — | 0 |
| AS30316US | PACKETIX - PACKETSTREAM LLC | — | — | 0 |
| AS30344US | 365-HOSTING - 365.hosting | — | — | 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 |
| AS32023US | ANADARKO - Occidental Petroleum Corporation | — | — | 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 |
| AS32589US | HTLF-PUBLIC-AS - UMB Bank, NA | — | — | 0 |
| AS32615US | ADVANTAGE-CELLULAR-SYSTEMS-INC - ADVANTAGE CELLULAR SYSTEMS, INC | — | — | 0 |
| AS32620US | JELLY-TELECOM - Jelly Telecom LLC | — | — | 0 |
| AS32732US | DCT-TELECOM - Momentum Telecom, Inc. | — | — | 0 |
| AS32803US | INFINEON TECHNOLOGIES AMERICAS CORP - Infineon technologies Americas Corp | — | — | 0 |
| AS32870US | RADIAN6 - Salesforce.com, Inc. | — | — | 0 |
| AS32880US | TELEVOX - Televox, Inc. | — | — | 0 |
| AS32925US | HILMARCHEESE - HILMAR CHEESE COMPANY | — | — | 0 |
| AS32962US | VONAGE-06 - Vonage Holdings, Inc. | — | — | 0 |
| AS32965US | VONAGE-06 - Vonage Holdings, Inc. | — | — | 0 |
| AS32966US | VONAGE-06 - Vonage Holdings, Inc. | — | — | 0 |
| AS32967US | VONAGE-06 - Vonage Holdings, Inc. | — | — | 0 |
| AS33031US | HSB-BGP-ASN - HomeStreet, Inc | — | — | 0 |