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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. | 211.2M | 21,268 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,721 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,955 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,300 |
| — |
| — |
| 0 |
| AS7902US | RSQ-ASN-1997 - RingSquared | — | — | 0 |
| AS7918US | LARKOM-AS - Larkom | — | — | 0 |
| AS7975US | CONFERENCE-AMERICA - Conference America, Inc. | — | — | 0 |
| AS7999US | GAMES-ONLINE - Games Online Inc. | — | — | 0 |
| AS8006US | SYSCI - Systems & Software Consortium, Inc. | — | — | 0 |
| AS8023US | CASTLES - Castles Information Network | — | — | 0 |
| AS8051US | LSWLLP - Lankler Siffert & Wohl LLP | — | — | 0 |
| AS8080US | ZIP2 - ZIP2 CORPORATION | — | — | 0 |
| AS8091US | ICOMS - Internet Commerce Services Corp | — | — | 0 |
| AS8110US | COGENT-8106 - Cogent Communications, LLC | — | — | 0 |
| AS8117US | DRF - Daily Racing Form | — | — | 0 |
| AS8142US | EAGLEQUEST - EagleQuest, Inc. | — | — | 0 |
| AS8152US | BRODER208 - Broderbund Networks | — | — | 0 |
| AS8162US | IMPULSEGATEWAY - AZ Digital Enterprises, Inc. | — | — | 0 |
| AS8186US | HPI - High Plains Internet | — | — | 0 |
| AS8195US | IONIP GTT Communications Inc. | — | — | 0 |
| AS9220US | INFONET-AU-AP - BT-Infonet | — | — | 0 |
| AS10243US | HERMESNET1 - STRC | — | — | 0 |
| AS10244US | EDIFY - Edify, Inc. | — | — | 0 |
| AS10321US | MERCOMUSA - Mercury Communications | — | — | 0 |
| AS10366US | ASN-NKN1 - National Knowledge Networks, Inc. | — | — | 0 |
| AS10369US | CAMPBELLSOUP-AS - Campbell Soup Company | — | — | 0 |
| AS10410US | AUTO-GRAPHICS - Auto-Graphics, Inc. | — | — | 0 |
| AS10415US | VSCAPEII - Vscape International, Inc | — | — | 0 |
| AS10468US | ASLAN - Aslan Communications, Inc. | — | — | 0 |
| AS10581US | TM3 - Thomson Municipal | — | — | 0 |
| AS10610US | APA - American Psychological Association | — | — | 0 |
| AS10611US | REOHR - The Reohr Group | — | — | 0 |
| AS10625US | IDC-RTS - Intercontinental Exchange, Inc. | — | — | 0 |
| AS10657US | GIANTSTEP - Giant Step | — | — | 0 |
| AS10726US | INAV-NET - Internet Navigator, Inc. | — | — | 0 |
| AS10741US | WAMNET - Wam Net Enterprises Inc. | — | — | 0 |
| AS10773US | SBIS-ASN-BLK-2 - AT&T Enterprises, LLC | — | — | 0 |
| AS10833US | CENTURYLINK-QC-MOE-DES-MOINES-DAVENPORT-SIOUX-CITY - CenturyLink Communications, LLC | — | — | 0 |
| AS10888US | AS10888 - National Aeronautics and Space Administration | — | — | 0 |
| AS10917US | THOMSON-REUTERS - Thomson Corporation | — | — | 0 |
| AS10984US | IDS-AS-BAYOU - Uniti Fiber Holdings Inc. | — | — | 0 |
| AS11065US | NETOVO-ASN1 - Netovo Group, LLC | — | — | 0 |
| AS11099US | SBC-NET - SBC Communications, Inc. | — | — | 0 |
| AS11152US | WAVCOM - Highline Services, LLC | — | — | 0 |
| AS11258US | ITS - Intelligent Technology Solutions, Inc. | — | — | 0 |
| AS11276US | TEMPUS - Tempus Technologies, Inc | — | — | 0 |
| AS11371US | UUNET-AS-11371 - Verizon Business | — | — | 0 |
| AS11445US | ASN1-SCF - State Compensation Fund | — | — | 0 |
| AS11614US | VIP-CONNECT - iBasis, Inc. | — | — | 0 |
| AS11697US | NET-SUPERNEWS - SuperNews | — | — | 0 |