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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 | 21,160 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 4,372 |
| 256 |
| — |
| 1 |
| AS13762US | AS13762 - Hunter Douglas Inc. | 256 | — | 1 |
| AS395051US | POWDR-CORP - POWDR CORP | 256 | — | 1 |
| AS54426US | TOSA - Texas Organ Sharing Alliance | 256 | — | 1 |
| AS398806US | VIS-2020-01 - Valli Information Systems, Inc | 256 | — | 1 |
| AS402274US | ZENNET - ZenNet LLC | 256 | — | 1 |
| AS18993US | AFS147 - Area Financial Services Inc. | 256 | — | 1 |
| AS30054US | THE-COLLEGE-OF-WESTCHESTER - The College of Westchester | 256 | — | 1 |
| AS54762US | ASHLANDUNIVERSITY - Ashland University | 256 | — | 1 |
| AS40492US | PACSEAFOOD - Pacific Seafood Group | 256 | — | 1 |
| AS399416US | CITY-OF-PHOENIX-AVN - City of Phoenix | 256 | — | 1 |
| AS32930US | MMCHS - Meadville Medical Center | 256 | — | 1 |
| AS26508US | OSILAT - OSIbeyond LLC | 256 | — | 1 |
| AS400327US | VIDVITA-USA-PA1 - VidVita LLC | 256 | — | 1 |
| AS40275US | SECURITYMETRICS - SecurityMetrics, Inc. | 256 | — | 1 |
| AS396960US | TC-EQ-CH2 - TransCanada Pipelines Limited | 256 | — | 1 |
| AS397082US | ASRC - Arctic Slope Regional Corporation | 256 | — | 1 |
| AS46551US | GRO-UCFUSM-1N - Michigan State University Federal Credit Union | 256 | — | 1 |
| AS33540US | ALZHEI-ASN - Alzheimers Assoc. | 256 | — | 1 |
| AS398085US | IHA-01 - Trinity Health IHA Medical Group | 256 | — | 1 |
| AS63078US | ADS-AS1 - A. Duda & Sons, Inc. | 256 | — | 1 |
| AS400166US | CPC-COGENT-BLOCK - Cheyenne Propagation Company | 256 | — | 1 |
| AS32507US | LYON-LR-01 - LYON COLLEGE | 256 | — | 1 |
| AS395596US | INFINIRC-LLC - Infinirc LLC | 256 | 256 | 2 |
| AS393405US | SCCUSD-AS - Saint Charles Community Unit School District 303 | 256 | — | 1 |
| AS30453US | INTERNET - Central Ohio Transit Authority | 256 | — | 1 |
| AS400455US | PH-HQ - PowerHouse | 256 | — | 1 |
| AS401241US | IHS - Integrated Hosted Services, Inc. | 256 | — | 1 |
| AS40531US | CVI - Carbon Valley Internet | 256 | — | 1 |
| AS7921US | ADTRAV - Adtrav Corporation | 256 | — | 1 |
| AS27371US | SCGASN - Starwood Capital Group, LLC | 256 | — | 1 |
| AS400461US | CITYOFMIDLANDTX - City of Midland | 256 | — | 1 |
| AS395361US | VPAY - StoneEagle Services, Inc. | 256 | 1 | 2 |
| AS398136US | GOAA-NET-1 - Greater Orlando Aviation Authority | 256 | — | 1 |
| AS394426US | COM-AS - City of Maricopa | 256 | — | 1 |
| AS14688US | AS14688 - GlobalView Software Inc. | 256 | — | 1 |
| AS53592US | KEPOS - Kepos Capital LP | 256 | — | 1 |
| AS40823US | SPORTS-ENDEAVORS - Sports Endeavors Inc. | 256 | — | 1 |
| AS393997US | REDCOATS - Red Coats, Inc | 256 | — | 1 |
| AS33037US | ANTHEMCONNECT - Anthem Broadband | 256 | 4.1K | 2 |
| AS22539US | CARDINALHEALTH-PR - Cardinal Health, Inc. | 256 | — | 1 |
| AS15230US | WARREN-GENERAL-HOSPITAL - Warren General Hospital | 256 | — | 1 |
| AS395834US | TDC-AS1 - Trondent Developement Corp | 256 | — | 1 |
| AS13869US | TEAM-AIR-EXPRESS - Team Worldwide | 256 | 1 | 2 |
| AS54849US | KANE-IS-ABLE - Kane Warehousing, Inc | 256 | — | 1 |
| AS11285US | KW-CORPORATION - K W Corporation, Inc. | 256 | — | 1 |
| AS399699US | KCLI-01 - Kansas City Life Insurance Company | 256 | — | 1 |