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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 | 23,661 |
| 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 |
| 236 |
| 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 | 4,490 |
| — |
| 0 |
| AS402498US | AS-CN-BYOIP - Compatible | — | — | 0 |
| AS402525US | GDOL-ASN-4AND9 - Georgia | — | — | 0 |
| AS402533US | NETWORK - Anextworks | — | — | 0 |
| AS402544US | INLETIX - Inletix | — | — | 0 |
| AS402608US | CITYOFXENIA - City | — | — | 0 |
| AS402666US | SELFHOSTED - selfhosted | — | — | 0 |
| AS402682US | VERISWITCH-AS - Veriswitch | — | — | 0 |
| AS402715US | RB-OKLAHOMA - Resonance | — | — | 0 |
| AS402727US | G-CLOUD-SITEB - Google | — | — | 0 |
| AS402733US | TECHNOKO - Technoko | — | — | 0 |
| AS402772US | BRADLEY-FIBER-NET - Bradley | — | — | 0 |
| AS402802US | BJERKERUD - Bjerkerud, | — | — | 0 |
| AS402811US | AS-IACDN - IA | — | — | 0 |
| AS402838US | SEH-AMERICA - SEH | — | — | 0 |
| AS402858US | AS-FBRWV-001 - Fiberwave | — | — | 0 |
| AS402865US | PCACGL - Pioneer | — | — | 0 |
| AS402869US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402873US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402890US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402896US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402907US | GEORGESINGHISP - GeorgeSingh | — | — | 0 |
| AS402920US | WGU-AS-IPV6 - Western | — | — | 0 |
| AS402924US | SARDIUSLLC-US-AS01 - Sardius | — | — | 0 |
| AS402941US | DATASWAMP-NET - dataswamp | — | — | 0 |
| AS403002US | DOUS-EDGE-01 - Duos | — | — | 0 |
| AS403035US | MODAL - Modal | — | — | 0 |
| AS403085US | NOAHNET - NoahNet | — | — | 0 |
| AS403101US | IBEE-CLOUD-US - IBEE | — | — | 0 |
| AS403126US | SAH-AS-01 - Spectrum | — | — | 0 |
| AS403174US | PHOTON-INDUSTRIES - Photon | — | — | 0 |
| AS403184US | MARTINA - MARTINA | — | — | 0 |
| AS90US | SUN-AS - Oracle Corporation | — | — | 0 |
| AS144US | ATT-INTERNET - Lucent Technologies/Bell Laboratories | — | — | 0 |
| AS211US | RADC-ROME-AIR-DEVELMENT-CENTER - Rome Air Development Center | — | — | 0 |
| AS222US | SMALC-HOSTNET-AS - Air Force Systems Networking | — | — | 0 |
| AS241US | OCALC-HOSTNET-AS - Air Force Systems Networking | — | — | 0 |
| AS256US | DNIC-AS-00256 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS380US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS386US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS390US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS392US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS394US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS434US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS464US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS478US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS502US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |