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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| 12.3K |
| — |
| 2 |
| AS46621US | SCRIC - Broome - Tioga BOCES | 12.3K | — | 7 |
| AS19570US | MAPLETRONICSCOMP - Maple Tronics Computers, Inc. | 12.3K | — | 26 |
| AS11106US | WOLFRAM-AS - Wolfram Research, Inc. | 12.3K | — | 2 |
| AS25606US | CPVCOM - Cooperative Communications Inc. | 12.3K | — | 3 |
| AS20295US | FILERTELEPHONE - Filer Mutual Telephone Company | 12.3K | 65.5K | 7 |
| AS13336US | ASN-WR-COM - Evergy Services, Inc. | 12.3K | — | 11 |
| AS26251US | SIRIUS-1 - Prospeed.Net,Inc. | 12.3K | — | 3 |
| AS14574US | RTCCOM - RTC Communications | 12.3K | 65.5K | 3 |
| AS33728US | UNITEL-INC - Unitel Inc | 12.3K | 65.5K | 3 |
| AS13351US | B-U-C - Barbourville Utility Commission | 12.3K | 65.5K | 22 |
| AS26068US | ONSH-NET-CHGO-BLK01 - OnShore, Inc. | 12.3K | — | 7 |
| AS13694US | XECUNET - Xecunet, LLC. | 12.3K | 65.5K | 3 |
| AS394655US | UCHC-ASN - University of Connecticut Health Center | 12.3K | — | 17 |
| AS53741US | AS53741 - American Airlines Inc. | 12.3K | — | 17 |
| AS397246US | PONCACITYBROADBAND - Ponca City Utility Authority | 12.3K | — | 2 |
| AS19689US | MST-AS - Nuvisions | 12.3K | — | 3 |
| AS40728US | GEARHOST - GearHost, Inc. | 12.3K | — | 3 |
| AS30170US | OPTICFUSION - Isomedia, Inc. | 12.3K | 70.7K | 17 |
| AS14589US | DIGITALWEST-AS - Wave Broadband | 12.3K | 65.5K | 3 |
| AS19428US | PHILLIPS-66 - Phillips 66 Company | 12.3K | — | 17 |
| AS33322US | NDCHOST - Network Data Center Host, Inc. | 12.3K | — | 7 |
| AS14760US | MURRAY-STATE-UNIVERSITY - Murray State University | 12.3K | — | 3 |
| AS25717US | SCAAM0001 - Essity Hygiene and Health | 12.3K | — | 43 |
| AS22163US | TAMHSC - Texas A&M University System Health Science Center | 12.3K | — | 2 |
| AS19005US | MOZGROUP-SMTP - J2 Global Ventures, LLC | 12.3K | — | 11 |
| AS10812US | UTPB-AS-10812 - University of Texas System | 12.3K | — | 2 |
| AS53809US | TTUHSC-ELP - Texas Tech University Health Sciences Center at El Paso | 12.3K | 16 | 3 |
| AS16710US | PBS - Public Broadcasting Service | 12.3K | — | 17 |
| AS19420US | WWTC-247-01 - West Wisconsin Telcom Cooperative, Inc | 12.3K | — | 2 |
| AS399512US | GREATWAVE-HE-A - Suite224 Internet | 12.3K | — | 2 |
| AS394977US | T2EE-AS1 - TAKE-TWO INTERACTIVE SOFTWARE, INC. | 12.3K | 6 | 54 |
| AS12009US | NWF-EONI-ASN-1 - Ziply Fiber | 12.3K | 65.5K | 4 |
| AS26202US | PLANET-FIBER-VA - Planet Networks | 12.3K | — | 2 |
| AS22739US | BYU-H - Brigham Young University Hawaii | 12.3K | — | 2 |
| AS14327US | PGE-ONLINE - Portland General Electric Company | 12.3K | — | 3 |
| AS15359US | DATTO-DOM - Datto, LLC | 12.3K | — | 48 |
| AS63330US | ECTCMN - Emily Cooperative Telephone Company | 12.3K | — | 3 |
| AS17404US | AS-UPTIMEPIPE - Pipe Networks LLC | 12.3K | — | 45 |
| AS19526US | B2R - Back 2 Roots, LLC | 12.3K | 65.5K | 4 |
| AS6623US | CBSI-1 - CBS Interactive Inc. | 12.3K | 18 | 12 |
| AS16913US | LOYNO-EDU - Loyola University New Orleans | 12.3K | — | 3 |
| AS55105US | NCC-ASN - NORTHWEST COMMUNICATIONS COOPERATIVE | 12.3K | 65.5K | 4 |
| AS20436US | PGTC-COM - Prairie Grove Telephone Co. | 12.3K | — | 2 |
| AS22347US | DORSEY-WHITNEY - Dorsey & Whitney LLP | 12.3K | 1 | 4 |
| AS25893US | WATTAGE-01 - Wattage Hosting, LLC | 12.3K | 4.1K | 52 |
| AS18516US | MOLALLACOM - Molalla Communications Systems Inc. | 12.3K | — | 3 |