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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,186 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,373 |
| PUPPET - Puppet, Inc. |
| 256 |
| 1 |
| 2 |
| AS16846US | HPN-WF-ND-NET - High Point Networks | 256 | — | 1 |
| AS46622US | ARMSTRONG-ENTERPRISE-COMMUNICATIONS - Armstrong Enterprise Communications, Inc. | 256 | — | 1 |
| AS54991US | CADENCE-BANK-BHM - Cadence Bank, N.A. | 256 | — | 1 |
| AS393723US | GCLS-BGP-01 - Greenville County Library System | 256 | — | 1 |
| AS394443US | RSC-HQ-CIR1 - RADIO SYSTEMS CORPORATION | 256 | — | 1 |
| AS394595US | SENSATA - Sensata Technologies, Inc. | 256 | — | 1 |
| AS402026US | AVIRM-SYSTEMS-INC - Avirm Systems, Inc. | 256 | 1 | 2 |
| AS398543US | CN-ASN-TRILIGHT-SPECTRUM - Carson-Newman University | 256 | — | 1 |
| AS54717US | CLAREMONT-COMPUTER-NETWORK - Claremont Computer Network LLC | 256 | — | 1 |
| AS400490US | TWO-BIT-HACKS - Two Bit Hacks, LLC | 256 | 1 | 2 |
| AS40691US | CCSBUSINESSSOL - CCS Business Solutions, Inc. | 256 | — | 1 |
| AS63184US | MORRISTOWN-HQ - Valley National Bank | 256 | — | 1 |
| AS397105US | UHS-AS-01 - United Health Services Hospitals, Inc. | 256 | — | 1 |
| AS26147US | QTS-DEN1 - Quality Technology Services, LLC | 256 | — | 1 |
| AS26489US | ASN-POLUNS - Polunsky & Beitel | 256 | — | 1 |
| AS27341US | GFNET-AS01 - Gannet Fleming, Inc. | 256 | — | 1 |
| AS26415US | VERISIGN-INC - VeriSign Global Registry Services | 256 | — | 1 |
| AS4505US | WHDH-BOS - WHDH-TV | 256 | — | 1 |
| AS53353US | AKRR - Alaska Railroad Corporation | 256 | — | 1 |
| AS393961US | FBB-INTERNET-ID - Farm Bureau Bank | 256 | — | 1 |
| AS396090US | SEMINOLECOUNTY - Seminole County Government | 256 | — | 1 |
| AS396221US | RADCC-ASN - Rainbow | 256 | — | 1 |
| AS21851US | KAINOSCOM-SPRINGVALLEY - Kainos Technologies LLC | 256 | — | 1 |
| AS12216US | KRAVET - KRAVET INC. | 256 | — | 1 |
| AS398832US | STRAYANET-01 - Strayanet LLC. | 256 | — | 1 |
| AS399880US | BITCO-INSURANACE-COMPANIES - BITCO Corporation | 256 | — | 1 |
| AS393404US | DTSOLUTIONS-1 - Delval Technology Solutions LLC | 256 | — | 1 |
| AS30363US | GLOBALRESPONSEUSA - Global Response Corporation | 256 | — | 1 |
| AS54428US | FRD-ASN - Leonardo DRS, Inc. | 256 | — | 1 |
| AS395396US | AAH-OAHU - Alert Alarm Hawaii | 256 | — | 1 |
| AS399293US | HOLASN - Hollingsworth Logistics Group LLC | 256 | — | 1 |
| AS394890US | DEW-AS - Dewpoint Inc | 256 | — | 1 |
| AS398177US | ITV-AMERICA-AS1 - ITV America Inc | 256 | — | 1 |
| AS398376US | SEPHORA-USA - Sephora USA Inc. | 256 | — | 1 |
| AS398403US | SSI - Alarm Detection Systems, Inc | 256 | — | 1 |
| AS401970US | CASILA-FLOWER - CASILAFLOWER | 256 | — | 1 |
| AS394693US | PLCU-NET - Point Loma Credit Union | 256 | — | 1 |
| AS393714US | ASN-SDMCU - San Diego Metropolitan Credit Union | 256 | — | 1 |
| AS400240US | NEEBUNET - NEEBU Networks | 256 | 1 | 2 |
| AS30339US | DGLAW - Davis & Gilbert LLP | 256 | — | 1 |
| AS400142US | FREE-RANGE-INTERNET - Free Range Internet LLC | 256 | — | 1 |
| AS12088US | NABANCARD - North American Bancard, LLC | 256 | — | 1 |
| AS393726US | ASGN - On Assignment, Inc. | 256 | — | 1 |
| AS397590US | MBBC-AS-01 - Milwaukee Brewers Baseball Club, LP | 256 | — | 1 |
| AS16554US | CLOUDSOURCE-01 - Cloud Source, Inc. | 256 | 1 | 2 |
| AS397123US | WSB-TV - Cox Media Group, LLC | 256 | — | 1 |