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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 | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| 6.1K |
| 65.5K |
| 9 |
| AS26088US | INLANDTELEPHONE - Inland Internet | 6.1K | — | 4 |
| AS21779US | HARLANONLINE - Harlan Community Television, Inc. | 6.1K | — | 3 |
| AS63298US | FATBEAM-TEKFINITY - Fatbeam, LLC | 6.1K | — | 12 |
| AS53280US | PROMEDICA - The Toledo Hospital | 6.1K | 1 | 21 |
| AS5927US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 5.9K | 9 | 32 |
| AS23500US | THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS23500 - The Bank of New York Mellon Corporation | 5.9K | — | 18 |
| AS2011US | WELLSFARGO-2011 - Wells Fargo Bank, N.A. | 5.9K | 1 | 8 |
| AS32022US | CHC-AS - Children's Hospital Colorado | 5.9K | — | 8 |
| AS394177US | SHIFT-HOSTING-LLC - SHIFT HOSTING LLC | 5.9K | 28.9K | 29 |
| AS397041US | SEVERANCE-CO-LIGHTGIG - Lightgig Communications LLC | 5.9K | 67.1K | 38 |
| AS14991US | IL2K - ElkhartNet, Inc | 5.9K | — | 6 |
| AS7247US | MOJO - Mojo Networks | 5.9K | 257 | 10 |
| AS32695US | WHITE-RIVER-CONNECT - White River Connect | 5.9K | 73.7K | 12 |
| AS17056US | CIPHERSPACE - CipherSpace, LLC | 5.9K | 65.5K | 14 |
| AS11609US | ELAVON - ELAVON | 5.9K | — | 16 |
| AS16841US | GBLIT-ASN1 - GLOBAL IT | 5.9K | — | 14 |
| AS4310US | SCC-FL-EDU - Seminole State College of Florida | 5.9K | — | 8 |
| AS393340US | COXAUTO - Cox Enterprises Inc | 5.9K | — | 21 |
| AS21837US | OPERASOFTWARE - Opera Software Americas LLC | 5.9K | 2 | 12 |
| AS23344US | DSS-EDGE - Disney Worldwide Services, Inc. | 5.9K | 23 | 46 |
| AS397031US | GALAXYGATE - GALAXYGATE, LLC | 5.9K | 2.1K | 20 |
| AS395341US | WCT-16 - White Cloud Technologies LLC | 5.9K | — | 12 |
| AS16403US | BOISE-CASCADE - Boise Cascade Corporation | 5.9K | — | 8 |
| AS3791US | ASCENSION-KSWIC - Ascension Technologies | 5.9K | — | 23 |
| AS11738US | BLIP-NETWORKS - BLIP Networks | 5.9K | 65.5K | 10 |
| AS25733US | LEAR - Lear Corporation (LEA) | 5.9K | — | 8 |
| AS996US | JY-MOBILE-COMMUNICATIONS - JY Mobile Communications | 5.9K | 262.1K | 10 |
| AS400696US | MIBURA-1 - MIBURA, INC. | 5.9K | 458.8K | 40 |
| AS33US | HPINC - HP Inc. | 5.9K | — | 9 |
| AS30072US | WESTEX-AS1 - Wes-Tex Telecommunications LTD | 5.9K | — | 4 |
| AS20347US | GFN-US - Nvidia Corporation | 5.9K | — | 23 |
| AS396258US | SEATTLEU-AS - Seattle University | 5.9K | — | 5 |
| AS998US | HYPESTATUS - HypeStatus Inc | 5.9K | 4.1K | 10 |
| AS4282US | CENTURYLINK-TSDS-FLFTMY - CenturyLink Communications, LLC | 5.9K | — | 4 |
| AS989US | ANAXA3-ASN - ASPnix | 5.9K | 1 | 24 |
| AS62712US | STATEHAWAII - State of Hawaii | 5.9K | — | 9 |
| AS14072US | WASH-DC-CITY-GOVT - Government of the District of Columbia | 5.9K | — | 14 |
| AS6998US | BRITEVOICE - Concentrix CVG Brite Voice Systems LLC | 5.9K | — | 12 |
| AS30635US | ASANDJ-AS-233W - AS&J Associates, Inc. | 5.9K | — | 8 |
| AS30456US | COSMIC - Cosmic Global Networks | 5.9K | — | 23 |
| AS1696US | CITIGROUP-1696 - Citigroup Inc. | 5.9K | — | 23 |
| AS4136US | QTS - Quality Technology Services, LLC | 5.9K | 65.5K | 6 |
| AS13331US | METAPEER-INC - MetaPeer | 5.9K | 17 | 12 |
| AS54241US | BOLT-INTERNET - Midvale Telephone Exchange, Incorporated | 5.9K | 65.5K | 9 |
| AS395855US | ACSKYWAYS - AC Skyways | 5.9K | — | 13 |
| AS33293US | BROADVOICE-LAX - SYNDEO LLC | 5.9K | — | 9 |