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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| — |
| — |
| 0 |
| AS7193US | VRIS-7193 - Verizon Business | — | — | 0 |
| AS7251US | THREATTRACK-SECURITY-INC - ThreatTrack Security | — | — | 0 |
| AS7292US | SBIS-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS7307US | HIPPO-7307 - Hippocampus OSD Inc. | — | — | 0 |
| AS7323US | ADVEST - Advest | — | — | 0 |
| AS7351US | BLARG - Isomedia, Inc. | — | — | 0 |
| AS7388US | DFXNET - Design FX Interactive LLC | — | — | 0 |
| AS7389US | NETDOX - NetDox, Inc. | — | — | 0 |
| AS7419US | MONMOUTH-AS - Monmouth University | — | — | 0 |
| AS7440US | TRIPOD - Tripod, Inc. | — | — | 0 |
| AS7452US | NEIS-NET - New England Internet Services | — | — | 0 |
| AS7463US | GOPROTO-AS - Proto Technologies | — | — | 0 |
| AS7724US | IECBAL - Internet Enterprise Center | — | — | 0 |
| AS7732US | CDC-AS2 - Chattanooga Data Connection, Inc. | — | — | 0 |
| AS7763US | CYBERAMERICACORP - Cyber America Corporation | — | — | 0 |
| AS7829US | GEOLINKS-AS - GeoLinks | — | — | 0 |
| AS7865US | SWITCHBOARD-MA - Switchboard, Incorporated | — | — | 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 |