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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 |
| 256 |
| — |
| 1 |
| AS62991US | CVCH-AS - Columbia Valley Community Health | 256 | — | 1 |
| AS394628US | SQUARE-CORP - Square, Inc. | 256 | 65.5K | 4 |
| AS26915US | WERNER-OMA - Werner Enterprises | 256 | — | 1 |
| AS23527US | CHRISTCATHEDRALCA - Christ Catholic Cathedral Corporation | 256 | — | 1 |
| AS30071US | OCCAID - TowardEX Technologies International, Inc. | 256 | — | 1 |
| AS397620US | CITYMENLOPARK - City of Menlo Park | 256 | — | 1 |
| AS398894US | PRSD - Pine-Richland School District | 256 | 1 | 2 |
| AS402217US | COASTELECTRIC-01 - Coast Electric | 256 | — | 1 |
| AS16587US | FECLRO9234 - Friday, Eldredge & Clark, LLP | 256 | — | 1 |
| AS393717US | PUPPET - Puppet, Inc. | 256 | 1 | 2 |
| AS40435US | LIGADO-1 - Ligado Networks LLC. | 256 | — | 1 |
| AS27341US | GFNET-AS01 - Gannet Fleming, Inc. | 256 | — | 1 |
| AS397337US | KTS-DC-1 - Keytel Systems | 256 | — | 1 |
| AS62690US | LAMPO-AS - Ramsey Solutions | 256 | — | 1 |
| AS32197US | SEDC-ATL1-US - Meridian Cooperative, Inc. | 256 | — | 1 |
| AS397855US | ICSCLOUD-1 - Innovative Computer Solutions, Inc | 256 | — | 1 |
| AS18951US | 400-CAPITAL-MANAGEMENT - 400 Capital Management LLC | 256 | — | 1 |
| AS400344US | ETFH-PAL-01 - East Texas Broadband | 256 | — | 1 |
| AS394946US | SAP-CONCUR-BV - SAP America Inc. | 256 | — | 1 |
| AS398376US | SEPHORA-USA - Sephora USA Inc. | 256 | — | 1 |
| AS394771US | THALESAVIONICS - Thales Avionics | 256 | — | 1 |
| AS401044US | BLUETYPE - BlueType LLC | 256 | 1 | 2 |
| AS32518US | BMGL-AS - Just the News | 256 | — | 1 |
| AS398918US | ULF-ASN-01 - Upper Lakes Foods, Inc. | 256 | — | 1 |
| AS11945US | ASN-DEYOUNG - Corporation of the Fine Arts Museums | 256 | — | 1 |
| AS402235US | UNWRD-CO-01 - Unwired Access, LLC | 256 | 8.2K | 3 |
| AS29758US | SAMBATV-LAS - Samba TV, Inc. | 256 | 1 | 2 |
| AS46336US | GOODVILLE - Goodville Mutual Casualty Company | 256 | — | 1 |
| AS393800US | AWMF - The Andrew W. Mellon Foundation | 256 | — | 1 |
| AS395744US | COSTCO-TRAVEL - Costco Travel | 256 | — | 1 |
| AS399665US | ZOLL-BROOMFIELD - ZOLL Medical Corporation | 256 | — | 1 |
| AS399299US | STEARNSBANK-AS-01 - Stearns Financial Services, Inc | 256 | — | 1 |
| AS29821US | EFCU-INET - Elevations Credit Union | 256 | — | 1 |
| AS54544US | WM-549-01 - Woodward McCoach Inc. | 256 | 1 | 2 |
| AS401282US | ORIC-REPUBLIC-01 - Old Republic International Corporation | 256 | — | 1 |
| AS19862US | BNB-22-AS - Bridgehampton National Bank | 256 | — | 1 |
| AS54360US | USJ-ASN - USJ | 256 | — | 1 |
| AS25825US | PVH-ASN-1 - Poudre Valley Health Care, Inc. | 256 | — | 1 |
| AS40902US | CURTISS-WRIGHT-EMS - Curtiss-Wright Electro-Mechanical Corporation | 256 | — | 1 |
| AS53544US | LUMUGRACEFUL - LUMU GRACEFUL | 256 | — | 1 |
| AS394619US | OANDA-2 - OANDA Corporation | 256 | — | 1 |
| AS29961US | MADISON-COUNTY-COMMISSION-AL - Madison County Commission | 256 | — | 1 |
| AS395536US | TRIMARKASSOC - Trimark Associates, inc | 256 | — | 1 |
| AS402059US | TRSASN01 - Teachers' Retirement System of the City of New York | 256 | — | 1 |
| AS397843US | ESP - EyeCare Services Partners Management LLC | 256 | — | 1 |
| AS32998US | MIMCOM - Mimbres Communications, LLC | 256 | — | 1 |