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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. | 218M | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| BLUEBIT - BlueBit Networks LLC |
| 1K |
| 65.5K |
| 4 |
| AS394832US | ALLCAREHEALTH - AllCare Management Services, LLC | 1K | — | 4 |
| AS18443US | APSC - Alyeska Pipeline Service Company | 1K | — | 3 |
| AS6111US | FHIS - ADVENTIST HEALTH SYSTEM/SUNBELT, INC. | 1K | — | 3 |
| AS400694US | RPTA-ASN-01 - Valley Metro | 1K | — | 3 |
| AS20441US | SL-2182-20441 - SAGILITY LLC | 1K | — | 1 |
| AS393492US | DIGALERT - Underground Service Alert of Southern California | 1K | — | 3 |
| AS33627US | VISTEON - VISTEON CORPORATION | 1K | — | 4 |
| AS203955US | VCSVCS VCSVCS Inc. | 1K | — | 4 |
| AS35923US | NCHC - KENVUE BRANDS LLC | 1K | — | 4 |
| AS35929US | BLS - Bend-La Pine Schools | 1K | 64 | 2 |
| AS30132US | ISC-F-AS - Internet Systems Consortium, Inc. | 1K | 2 | 6 |
| AS399411US | FSI-23 - Froedtert South, Inc. | 1K | — | 3 |
| AS201573US | KANDYKSF Skyvera LLC | 1K | — | 4 |
| AS29986US | GOLDLASSO-AS - Gold Lasso, Inc. | 1K | — | 3 |
| AS26330US | AVFUEL-CORPORATION - Avfuel Corporation | 1K | — | 2 |
| AS11339US | HAX-ASN-01 - Haxtun Telephone Company | 1K | — | 4 |
| AS46864US | WORKD-IT - Workday, Inc. | 1K | — | 4 |
| AS26836US | AS-MARCHESE-NET - Marchese Computer Products, Inc. | 1K | — | 4 |
| AS202639US | ON24 ON24, Inc | 1K | — | 1 |
| AS399256US | FUSD-ASN - Fontana Unified School District | 1K | — | 3 |
| AS40722US | CALARTS - California Institute of the Arts | 1K | — | 4 |
| AS14233US | ANCESTRY-INC - Ancestry.com., Inc. | 1K | — | 1 |
| AS29840US | GRAM-NET2 - Grambling State University | 1K | — | 4 |
| AS1443US | SUPERCOOPER01 - CooperVision, Inc. | 1K | — | 1 |
| AS62552US | SANMARINOUSD - San Marino Unified School District | 1K | — | 1 |
| AS400539US | HESD - Harney Education Service District Region XVII | 1K | — | 4 |
| AS23061US | PIPELCC-AS - Pipe Networks LLC | 1K | — | 1 |
| AS398223US | POMONA-01 - Pomona Consulting LLC | 1K | 6 | 10 |
| AS18482US | CORASN01 - City of Raleigh | 1K | — | 3 |
| AS15088US | FNG - First Network Group Inc | 1K | 1 | 2 |
| AS395481US | SUNET - i SW, LLC | 1K | — | 1 |
| AS26452US | BRING-AS - BringCom, Inc. | 1K | — | 1 |
| AS394138US | IQVIA-DURHAM-6A - IQVIA Holdings Inc | 1K | — | 1 |
| AS54748US | HUDSONBAY - Hudson Bay Capital Management LP | 1K | — | 4 |
| AS206819US | markahost-llc Markahost LLC | 1K | — | 1 |
| AS394031US | SOUTHSUBURBANCOLLEGEOFCOOKCOUNTY - South Suburban College of Cook County | 1K | — | 1 |
| AS33672US | TITAN-LABS-AI-01 - Titan Labs USA, LLC | 1K | — | 1 |
| AS399211US | LAKE-PLACID-FIBER - Lake Placid Fiber LLC | 1K | — | 1 |
| AS53307US | YISG - Sedgwick Claims Management Services, Inc. | 1K | — | 3 |
| AS18488US | VTLA - NTT Global Networks Incorporated | 1K | — | 4 |
| AS398979US | RINGER-MOBILE-01 - Ringer | 1K | — | 2 |
| AS12134US | MTB - Manufacturers and Traders Trust Company | 1K | — | 4 |
| AS4393US | TIME-INC - Meredith Corp. | 1K | — | 4 |
| AS401486US | RAVNIX - RAVNIX LLC | 1K | 256 | 5 |
| AS36858US | NMSTN - Office of Broadband Access and Expansion | 1K | 65.5K | 5 |
| AS54549US | VIP-FIBER - City of Vallejo, A municipal corporation | 1K | 65.5K | 4 |