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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.1M | 21,138 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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 | 3,674 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,417 |
| 256 |
| — |
| 1 |
| AS19697US | DUPRE - Dupre Energy Services LLC | 256 | — | 1 |
| AS11781US | NETRADA-NA - TradeGlobal, LLC | 256 | — | 1 |
| AS46365US | CYANSYN - CYANSYN CO. | 256 | 4.1K | 2 |
| AS401576US | BITRIOT - Bitriot LLC | 256 | — | 1 |
| AS23062US | JWPEPPER - J.W. Pepper & Son, Inc. | 256 | — | 1 |
| AS27301US | CERNER-MINNESOTA-DC - Cerner Corporation | 256 | — | 1 |
| AS22225US | PRESTIGE-BRANDS-INC - Prestige Brands, Inc. | 256 | — | 1 |
| AS398956US | SANTACLARITA-ASN-01 - City Of Santa Clarita | 256 | — | 1 |
| AS55240US | UNIFOCUS - UniFocus LP | 256 | — | 1 |
| AS17387US | AUBIX - AUBIX LLC | 256 | 4.1K | 2 |
| AS19525US | 3E-COMPANY - 3E COMPANY ENVIRONMENTAL, ECOLOGICAL AND ENGINEERING | 256 | — | 1 |
| AS15303US | NIKE-SECURITIES - First Trust Portfolios L.P. | 256 | — | 1 |
| AS393671US | WABHM - Warren Averett, LLC | 256 | — | 1 |
| AS396229US | EQUUS - Equus Capital Partners, Ltd. | 256 | — | 1 |
| AS54383US | NORWOOD-BANK - Norwood Cooperative Bank | 256 | — | 1 |
| AS397542US | ACCDPEC - Austin Convention Center Department | 256 | — | 1 |
| AS36346US | TOGETHER-INFRA - Together Computer, Inc. | 256 | 65.5K | 2 |
| AS54493US | ASPEN-VALLEY-HOSPITAL - Aspen Valley Hospital | 256 | — | 1 |
| AS63484US | CREDIT-UNION-WEST - Credit Union West | 256 | — | 1 |
| AS400162US | SLOPESIDE-SOFTWARE-01 - Slopeside Software | 256 | — | 1 |
| AS393680US | QUADA01 - Quadax Inc. | 256 | — | 1 |
| AS25750US | AS25750 - Southwestern Vermont Health Care Corporation | 256 | — | 1 |
| AS46880US | CITY-ASN - City of Irvine | 256 | — | 1 |
| AS607US | RNM-15-ASN-01 - Revelation Network Management, Inc. | 256 | — | 1 |
| AS402094US | SRJK-DFW-01 - SRJK LLC | 256 | 256 | 2 |
| AS32711US | WCGNC - Wake County Government | 256 | — | 1 |
| AS10956US | TALKFUSION - Talk Fusion, Inc | 256 | — | 1 |
| AS393948US | GSUSA420 - Girl Scouts of the United States of America | 256 | — | 1 |
| AS22669US | CNANHQ-01 - CNA National Warranty Corporation | 256 | — | 1 |
| AS11004US | CITY-OF-GOLDEN-01 - City of Golden | 256 | — | 1 |
| AS401457US | MINIUM-NET-64 - MINIUM NET LLC | 256 | — | 1 |
| AS36832US | NGL-AS - Network Gibbon LLC | 256 | 256 | 2 |
| AS36736US | UTMG-TW-MNWX - UT Medical Group | 256 | — | 1 |
| AS398539US | IDENTIDAD-NETWORK-SOLUTIONS - Identidad Telecom | 256 | — | 1 |
| AS30014US | EDF-RE-MONTREAL - EDF Renewables, Inc. | 256 | — | 1 |
| AS399703US | NYS-BRIDGE-AUTHORITY - New York State Bridge Authority | 256 | — | 1 |
| AS62743US | ROOM-AND-BOARD - Room & Board, Inc. | 256 | — | 1 |
| AS2149US | COGENT-2149 - Cogent Communications, LLC | 256 | 1 | 2 |
| AS400299US | DIGITALPREZ-LLC - DigitalPrez Consulting | 256 | — | 1 |
| AS396491US | QUALTIM - Qualtim Inc. | 256 | — | 1 |
| AS11132US | ASMSA-AS - ARKANSAS SCHOOL FOR MATHEMATICS, SCIENCES & THE ARTS | 256 | — | 1 |
| AS54338US | AS54338 - TECHNIP ENERGIES USA, INC. | 256 | — | 1 |
| AS46591US | DPAM-AS1 - DENSO Products and Services Americas, INC. | 256 | — | 1 |
| AS401186US | OPTYXBROADBAND-FL - Optyx Broadband Inc. | 256 | — | 1 |
| AS20296US | EXPEDIA-ARIN - EXPEDIA, INC | 256 | — | 1 |
| AS17384US | CV - Wave | 256 | — | 1 |