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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 | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| — |
| — |
| 0 |
| AS4490US | EMTF-LAK - Air Force Systems Networking | — | — | 0 |
| AS402325US | SOUTHERN-TIER-NETWORK-NY - Southern | — | — | 0 |
| AS402370US | RAPIDFAIRING - Rapidfairing | — | — | 0 |
| AS1262US | AS1262 - National Aeronautics and Space Administration | — | — | 0 |
| AS1260US | PLE - Air Force Systems Networking | — | — | 0 |
| AS677US | ASU-AS - Arizona State University | — | — | 0 |
| AS1346US | DNIC-AS-01346 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS472US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS440US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS180US | UMICH-AS-4 - University of Michigan | — | — | 0 |
| AS253US | NTTA-253 - NTT America, Inc. | — | — | 0 |
| AS400889US | SPARC-GROUP-01 - SPARC Group LLC | — | — | 0 |
| AS400888US | AWS-DIRECT-ASN - Spy Fu, Inc. | — | — | 0 |
| AS400296US | DART-NET - Snaju Development | — | — | 0 |
| AS402576US | PITL2-UA-AS - PRIMEUNITY | — | — | 0 |
| AS8390US | TPN-AS GTT Communications Inc. | — | — | 0 |
| AS1502US | DNIC-ASBLK-01500-01502 - Headquarters, USAISC | — | — | 0 |
| AS1350US | SEARSNET-AS - Sears Technology Services Incorporated | — | — | 0 |
| AS1340US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1060US | SUNWEST-BANK - Sunwest Bank | — | — | 0 |
| AS1400US | T2-CT-ASC - Charles Schwab & Co., Inc. | — | — | 0 |
| AS7081US | CARIN-AS-BLOCK - ISI | — | — | 0 |
| AS7074US | NN-RS00-RS06 - NAP.NET, LLC | — | — | 0 |
| AS6938US | GREENLAKE-IOC - Greenlake/IOC | — | — | 0 |
| AS6983US | ITCDELTA - Windstream Communications LLC | — | — | 0 |
| AS6554US | BDM - BDM Federal, Inc. | — | — | 0 |
| AS6500US | NEXUS-22-6500 - Nexusguard, Inc | — | — | 0 |
| AS6414US | IPNET - Thurber Technology Group | — | — | 0 |
| AS1469US | DNIC-ASBLK-01469-01470 - Headquarters, USAISC | — | — | 0 |
| AS10291US | LABSHUB-NETWORKING - Amazon.com, Inc. | — | — | 0 |
| AS10256US | GS-ASN - Akula Communications Corp. | — | — | 0 |
| AS207618US | DORIDIAN-AS Mark Dietzer | — | 257 | 2 |
| AS9460US | KYNDRYLINC-AS-AP - Kyndryl INC | — | — | 0 |
| AS7852US | PGTEL - California Internet Services | — | — | 0 |
| AS7135US | KOHALA - Kohala Software | — | — | 0 |
| AS7335US | LOOP - Loop Phone Organization | — | — | 0 |
| AS8062US | BELLSOUTH-NET-BLK3 - AT&T Enterprises, LLC | — | — | 0 |
| AS7160US | NETDYNAMICS - Oracle Corporation | — | — | 0 |
| AS7158US | NETFEED-AS - NetEx Online Services | — | — | 0 |
| AS5695US | MAILROOM-NT - Allen Bradley Inc. | — | — | 0 |
| AS5712US | RCN-AS4 - RCN | — | — | 0 |
| AS5326US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5318US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5073US | HPINC - HP Inc. | — | — | 0 |
| AS1728US | SRI-TPA-GW1 - SRI-TPA-gw1 | — | — | 0 |
| AS4369US | IQUEST-ASN - InterQuest Inc. | — | — | 0 |