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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. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,202 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| WIDOJ - Wisconsin Department of Justice |
| 256 |
| — |
| 1 |
| AS209706US | magoodsllc M&A GOODS LLC | 256 | — | 1 |
| AS400068US | LION-TECHNOLOGY-570 - LION TECHNOLOGY INC | 256 | — | 1 |
| AS401554US | UHH-ASN - Upland Hills Health | 256 | — | 1 |
| AS400473US | AS-JENCO - Jenco Wireless, LLC | 256 | — | 1 |
| AS32129US | CITIZEN-WATCH-COMPANY - Citizen Watch Company Of America, Inc. | 256 | — | 1 |
| AS36607US | ACM - Association for Computing Machinery, Inc | 256 | — | 1 |
| AS1064US | AS-RIVULET - Rivulet Wireless Inc. | 256 | — | 1 |
| AS400756US | LODGEWORKS - LodgeWorks | 256 | — | 1 |
| AS398499US | OVA-HQ - SL Green Realty Corp | 256 | 1 | 2 |
| AS399514US | HORIZONBANK - Horizon Bank | 256 | — | 1 |
| AS17180US | MFS-TKY - Massachusetts Financial Services | 256 | — | 1 |
| AS11330US | BANKPLUS-NETWORK-01 - BankPlus | 256 | — | 1 |
| AS397040US | SUPN-INT - Supernus Pharmaceuticals, Inc. | 256 | — | 1 |
| AS401381US | APTCORP - Alaska Power & Telephone Company | 256 | — | 1 |
| AS11934US | ESL63 - Enom Solutions LLC | 256 | — | 1 |
| AS30715US | Q9-AS-KML1 - Equinix, Inc. | 256 | — | 1 |
| AS63465US | SW24-MOON - Securewatch24, LLC | 256 | — | 1 |
| AS26639US | ACE-002 - Ace Data Centers II, L.L.C. | 256 | — | 1 |
| AS398928US | THOMSON-REUTERS - Thomson Reuters U.S. LLC | 256 | — | 1 |
| AS399401US | LOUISIANA-INTERNET-TECHNOLOGY - LOUISIANA INTERNET TECHNOLOGY, LLC | 256 | — | 1 |
| AS31754US | NORTHWEST-FINANCIAL-CORP - Northwest Financial Corp | 256 | — | 1 |
| AS398201US | GRAHAM-HEALTH-SYSTEM-IL - Graham Health System | 256 | — | 1 |
| AS401021US | FASTPIX - FastPix Inc. | 256 | — | 1 |
| AS399270US | MGMC-NET - MARY GREELEY MEDICAL CENTER | 256 | — | 1 |
| AS27002US | MIAX-MIAMI-INTERNATIONAL-HOLDINGS - Miami International Holdings, Inc | 256 | — | 1 |
| AS36288US | ASN-IARC - NNSA Information Assurance Response Center (IARC) | 256 | 1 | 2 |
| AS397055US | LNH-ASN-01 - 12-182-8156 | 256 | — | 1 |
| AS397329US | CSCI-3662 - Central Security Communications, Inc. | 256 | — | 1 |
| AS62783US | HOTTOPIC - Hot Topic Inc. | 256 | — | 1 |
| AS7837US | TAIHE-NETWORKS - Taihe Networks LLC | 256 | 256 | 2 |
| AS54956US | VEPC-ASN-01 - Vermont Electric Power Company, Inc. | 256 | — | 1 |
| AS401557US | LF73 - Plentek, LLC | 256 | 1 | 2 |
| AS46119US | MIDMICHIGANHEALTH-AS-1 - MidMichigan Health | 256 | — | 1 |
| AS26508US | OSILAT - OSIbeyond LLC | 256 | — | 1 |
| AS394143US | LTX-DC - C.O.P.S. Monitoring | 256 | — | 1 |
| AS402864US | SLATEIT-CORE - SlateIT | 256 | 256 | 2 |
| AS12235US | SEN-1 - SmartEdgeNet LLC | 256 | — | 1 |
| AS33394US | JABIL-AS-FRAU-PH - Jabil | 256 | — | 1 |
| AS21676US | GSIC-PA - Radial, Inc. | 256 | — | 1 |
| AS22962US | KENNEDY-NW-DC-US - The Kennedy Center | 256 | — | 1 |
| AS30554US | LEVY-LFS-NET - Levy Restaurants | 256 | — | 1 |
| AS36035US | INTELLICOMM-1 - Intellicomm Inc. | 256 | — | 1 |
| AS401387US | TWR-O-1 - TWR Tech, LLC | 256 | — | 1 |
| AS401875US | IVM-022 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS36059US | ETOGY-01 - Etogy, Inc. | 256 | — | 1 |
| AS13372US | FEDERATEDINV - Federated Investors | 256 | — | 1 |