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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 | 23,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,143 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,820 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,994 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,278 |
| LMC - Long Motor Corporation |
| — |
| — |
| 0 |
| AS4942US | B-NET - B-Net Technologies | — | — | 0 |
| AS4562US | INTEX - Intex-Net | — | — | 0 |
| AS809US | PPD-TRANSIT - PhirePhly Design | — | 1 | 1 |
| AS395496US | MICROSOFT-CORP-AS-BLOCK-MSIT3 - Microsoft Corporation | — | — | 0 |
| AS396050US | HYPERGROUP-IX - Hyper Group Network LLC | — | — | 0 |
| AS395601US | ASHP-HQ - AMERICAN SOCIETY OF HEALTH SYSTEM PHARMACISTS | — | — | 0 |
| AS395547US | WABCTVNET-7LS - WABC-TV/EABC-TV | — | — | 0 |
| AS395106US | BPR-OF-TN-AS - Board of Professional Responsibility of the Supreme Court of Tennessee | — | — | 0 |
| AS396752US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS395042US | ACTIVECAMPAIGN - ActiveCampaign, Inc. | — | — | 0 |
| AS219255US | Lee-World Derek Lee | — | 1 | 1 |
| AS396575US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS397083US | CEL-NET1-V4 - Chicopee Electric Light | — | — | 0 |
| AS396817US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396796US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396646US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396681US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396608US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS200329US | HYPERTOAST-AS Monil Chheda | — | 3 | 3 |
| AS212716US | ISC-LWO1 Internet Systems Consortium Inc. | — | — | 0 |
| AS393338US | HURRICANE-REALTIME-BGP - Hurricane Electric LLC | — | — | 0 |
| AS6032US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5822US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6020US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5869US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5866US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6380US | BELLSOUTH-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5759US | RAINSTORM - Storm Network Systems, LLC | — | — | 0 |
| AS6593US | CITIZEN1 - Citizen 1 Software | — | — | 0 |
| AS6570US | CNCS - AmeriCorps | — | 256 | 1 |
| AS4288US | CENTURYLINK-TSDS-NCJCVL - CenturyLink Communications, LLC | — | — | 0 |
| AS6393US | PRYSM-AS - Prysm Technologies | — | — | 0 |
| AS6365US | AS6365NET - Internet 1st, Inc. | — | — | 0 |
| AS6317US | MILLENNIANET - MillenniaNet, LLC | — | — | 0 |
| AS11616US | PEAPOD - Peapod, Inc. | — | — | 0 |
| AS6137US | SISNA - SISNA, Inc. | — | — | 0 |
| AS4369US | IQUEST-ASN - InterQuest Inc. | — | — | 0 |
| AS197691US | TAIPEI101-AS Taipei101 Network LLC | — | 16 | 1 |
| AS4102US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4207US | NET-INTRNET - Allied Access Inc. | — | — | 0 |
| AS4487US | EMTF-UPW - Air Force Systems Networking | — | — | 0 |
| AS4145US | UPS-AS4145 - UNITED PARCEL SERVICE | — | — | 0 |
| AS4031US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS396518US | BUILDJET - BUILDJET, INC. | — | 1 | 1 |
| AS4002US | COGENT-4000 - Cogent Communications, LLC | — | — | 0 |
| AS399155US | SECURITYSERVICES - Vercara, LLC | — | 256 | 1 |