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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 | 3,140 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,178 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,946 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,371 |
| 768 |
| — |
| 3 |
| AS397056US | AGWORKS - AgWorks, LLC | 768 | — | 3 |
| AS31853US | EMS-AS - Express Messenger Systems, Inc. | 768 | — | 3 |
| AS14903US | PILOT-CATASTROPHE - Pilot Catastrophe Services, Inc. | 768 | — | 2 |
| AS398434US | INTERNET-314 - Internet 3.14 | 768 | — | 3 |
| AS14162US | FHLB-PITT - FEDERAL HOME LOAN BANK of PITTSBURGH | 768 | — | 3 |
| AS32008US | PAYCHEX-L - Paychex Inc. | 768 | — | 3 |
| AS401370US | CALYX-NETWORKS - CALYX NETWORKS | 768 | 2 | 5 |
| AS55156US | RLR-EAS - R & L Carriers Inc | 768 | — | 3 |
| AS3944US | PARTAN-LAB - Partan & Partan | 768 | — | 3 |
| AS4319US | CORTLAND - Cortland Electronics Corp. | 768 | — | 3 |
| AS36134US | POOLCORP - Pool Corporation | 768 | — | 3 |
| AS21784US | AUCRWWL - The Robert W. Woodruff Library of the Atlanta University Center, Inc. | 768 | — | 2 |
| AS32520US | DN-OH1 - Diebold Nixdorf, Incorporated | 768 | — | 3 |
| AS11369US | STONEX - StoneX Group Inc. | 768 | — | 3 |
| AS395067US | BRF - B. Riley Financial, Inc. | 768 | — | 3 |
| AS23097US | COHEN-STEERS - COHEN & STEERS CAPITAL MGMT., INC. | 768 | — | 3 |
| AS26476US | CYBERU - CyberU, Inc. | 768 | — | 3 |
| AS39966US | GBPHBUMC - General Board of Pensions and Health Benefits | 768 | — | 3 |
| AS19771US | EMERGE-AS1 - Emerge Technologies LLC. | 768 | — | 3 |
| AS11012US | DDC-AS - The Digital Design Company | 768 | — | 2 |
| AS46153US | LOUISVILLE-JEFFERSON-COUNTY-METRO-GOVERNMENT - Louisville Jefferson County Metro Government | 768 | — | 2 |
| AS26461US | CARDHOLDER-MANAGEMENT-SERVICES - Cardworks Servicing, LLC | 768 | — | 3 |
| AS394427US | ZOICSTUDIOS - Zoic Studios | 768 | — | 3 |
| AS30570US | AEPCO-30570 - Arizona Electric Power Cooperative, Inc. | 768 | — | 3 |
| AS33583US | IBC-FGIS - Isabella Bank Corporation | 768 | — | 3 |
| AS210779US | BZL BREEZLE LLC | 768 | 4 | 7 |
| AS396285US | CBTS-AS-FGA - Cincinnati Bell Technology Solutions | 768 | — | 3 |
| AS33645US | ODYSSEYRE - ODYSSEY RE HOLDINGS CORP | 768 | — | 3 |
| AS54337US | BW-LYNVA - BWX Technologies, Inc. | 768 | — | 3 |
| AS53840US | AS-CCI1 - CENTRAL COAST INTERNET | 768 | — | 3 |
| AS22785US | GLACIER-BANCORP-INC - GLACIER BANCORP INC | 768 | — | 3 |
| AS19111US | NBTY1911 - The Nature's Bounty Co. | 768 | — | 3 |
| AS10563US | ROCHELLEUTILITIES - Rochelle Municipal Utilities | 768 | — | 3 |
| AS399078US | 9STONE-LLC - 9STONE LLC | 768 | 1 | 3 |
| AS30606US | BHSF - Baptist Health South Florida, Inc. | 768 | — | 3 |
| AS40422US | PACIOLAN - Paciolan, LLC | 768 | — | 3 |
| AS46106US | JACKSON-HEALTHCARE - Jackson Healthcare, LLC | 768 | — | 3 |
| AS22752US | MRCGLOBAL-AS1 - MRC Global (US) Inc. | 768 | — | 2 |
| AS46776US | EDUCATORS-CREDIT-UNION - EDUCATORS CREDIT UNION | 768 | — | 3 |
| AS3525US | ALBERTSONS - UNFI | 768 | — | 3 |
| AS12227US | WBNS-AS-1 - WBNS TV, Inc. | 768 | — | 3 |
| AS397417US | SCWA - Suffolk County Water Authority | 768 | — | 2 |
| AS11117US | NUYEK - Nuyek, LLC | 768 | 4.1K | 4 |
| AS214150US | NET-PRISM Prism Cloud LLC | 768 | — | 3 |
| AS46109US | ARDENT-NETWORKS - Ardent Wireless, LLC | 768 | 4 | 7 |
| AS398542US | ONECHRONOS - OneChronos | 768 | — | 3 |