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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 |
| 4.1K |
| — |
| 15 |
| AS22068US | TJC-62001 - Tyler Junior College | 4.1K | — | 2 |
| AS7254US | NGTEL - NGTelecom, Inc. | 4.1K | — | 4 |
| AS23254US | CARR-INTERNET - CARR COMMUNICATIONS, INC. | 4.1K | — | 1 |
| AS40567US | ANADARKO - Occidental Petroleum Corporation | 4.1K | — | 1 |
| AS23339US | MU-ASN - Marymount University | 4.1K | — | 6 |
| AS12234US | UUNET-INT - Verizon Business | 4.1K | — | 7 |
| AS12273US | TRUELINK - Transunion Interactive, Inc. | 4.1K | — | 12 |
| AS214083US | NODEHUB NodeHub LLC | 4.1K | 2 | 18 |
| AS402310US | AS-LOCAHOST - LocaHost LLC | 4.1K | — | 2 |
| AS54979US | ZEECON - Zeecon Wireless Internet L.L.C. | 4.1K | — | 1 |
| AS16813US | AMNH - American Museum of Natural History | 4.1K | 1 | 2 |
| AS17322US | NAVIGY-HOLDINGS - Navigy Holdings, Inc. | 4.1K | — | 1 |
| AS32539US | WCMCQ-NET - Weill Cornell Medical College in Qatar | 4.1K | 1 | 2 |
| AS6468US | EASYLINK-AS6468 - Easylink Services Corporation | 4.1K | — | 7 |
| AS395896US | SCC-180-ASN - Southeast Community College | 4.1K | — | 1 |
| AS53398US | BERKA-ASN - Berkadia Commercial Mortgage LLC | 4.1K | — | 2 |
| AS395098US | RFIH-NET1 - Retail Finance International Holdings, Inc. | 4.1K | — | 10 |
| AS23027US | BOINGO - Boingo Wireless, Inc. | 4.1K | — | 1 |
| AS13919US | ALLDATA-NET01 - ADS Alliance Data Systems, Inc. | 4.1K | — | 12 |
| AS400514US | ESPACE-NETWORKS - ESpace Networks | 4.1K | — | 14 |
| AS588US | DIRECTRON - Headquarters, USAISC | 4.1K | — | 1 |
| AS16679US | BSD403-ASN-111 - BETHEL SCHOOL DISTRICT 403 | 4.1K | — | 1 |
| AS27403US | APA-CTY - Apache County Board of Supervisors | 4.1K | — | 1 |
| AS33197US | DATACANOPY-SFO01 - Sidus Group, LLC | 4.1K | 65.8K | 6 |
| AS46452US | AS1 - Texas CellNet, Inc. | 4.1K | — | 16 |
| AS54098US | LIONLINK-NETWORKS - LIONLINK NETWORKS | 4.1K | 65.5K | 2 |
| AS25915US | WSWHE-NET - WASHINGTON SARATOGA WARREN HAMILTON & ESSEX BOCES | 4.1K | 16 | 2 |
| AS397608US | HCAS-4 - Hanson Communications, Inc. | 4.1K | — | 6 |
| AS54521US | THE-NATIONAL-GALLERY-OF-ART - National Gallery of Art | 4.1K | — | 1 |
| AS19967US | JSJ-CORP - JSJ Corporation | 4.1K | — | 1 |
| AS399833US | ROCKYRIDGE-NET - Rocky Ridge Wireless | 4.1K | — | 6 |
| AS46241US | WASHTENAW-ISD-ASN - Washtenaw ISD | 4.1K | — | 3 |
| AS35979US | WESTPHALIA-01 - WBI | 4.1K | — | 1 |
| AS27183US | NSD417 - Northshore School District | 4.1K | — | 1 |
| AS11889US | IVANET-DAL - iBasis, Inc. | 4.1K | 256 | 14 |
| AS1078US | LIGHTWAVE-COMMUNICATIONS - Lightwave | 4.1K | — | 8 |
| AS53958US | BART-BM - AUPROXIES LLC | 4.1K | — | 1 |
| AS20228US | NTUA - Navajo Tribal Utility Authority | 4.1K | 65.5K | 4 |
| AS46759US | CIA-ASN - Culinary Institute of America | 4.1K | — | 1 |
| AS12214US | RAPIDDSL--WIRELESS - RapidDSL & Wireless | 4.1K | — | 16 |
| AS23420US | AS-DAVENPRO - Davenpro Enterprises LLC | 4.1K | 65.5K | 7 |
| AS16822US | VISER - Viser | 4.1K | — | 1 |
| AS33638US | SCOTTS-AS - CITY OF SCOTTSBURG | 4.1K | — | 2 |
| AS19624US | SERVERROOM - Data Room, Inc | 4.1K | 16.4K | 22 |
| AS396334US | ORU-ASN - Oral Roberts University | 4.1K | — | 9 |
| AS40200US | ASN-MUNSON-CHARTER-ATT - Munson Healthcare | 4.1K | — | 2 |