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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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 | 24,543 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,304 |
| 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.
32,174 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 | 3,884 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,999 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,345 |
| 256 |
| — |
| 1 |
| AS40858US | CROSSTEL20051791WESTPOINT - Crosstel Inc | 256 | — | 1 |
| AS19094US | RESERVED-IPADMIN - Level 3 Parent, LLC | 256 | — | 1 |
| AS399540US | ABSCI-US-001 - AbSci Corporation | 256 | — | 1 |
| AS396840US | SPI-BLOCK-A - Sky Path Inc. | 256 | — | 1 |
| AS40331US | MRCYHQ - Mercury Systems, Inc. | 256 | — | 1 |
| AS47098US | SAMPSON COUNTY SCHOOLS - Sampson County Schools | 256 | — | 1 |
| AS399808US | LAER-AS-NYC1 - UnitedLayer, LLC | 256 | 1 | 2 |
| AS54568US | BGIM-ASN-2 - Brandywine Global Investments | 256 | — | 1 |
| AS36359US | WORTH-CIT-SCHOOLS-OH - Worthington City Schools | 256 | 1 | 2 |
| AS27028US | SNEDG-LAN-WAN - SNET Diversified Group | 256 | — | 1 |
| AS46928US | ACADEMY-SPORTS-OUTDOORS - Academy Sports + Outdoors | 256 | — | 1 |
| AS401854US | VELOCIRAPTOR-01 - Velociraptor LLC | 256 | 1 | 2 |
| AS397132US | MCCB - MIssissippi Community College Board | 256 | — | 1 |
| AS401544US | JMA-1 - John Mayes and Associates | 256 | — | 1 |
| AS51844US | HASHT-ENTERPRISE - HashTable, Inc. | 256 | 6 | 7 |
| AS394113US | INCCRRA-MAIN - INCCRRA | 256 | — | 1 |
| AS399796US | BERNINA - Bernina of America, LLC | 256 | — | 1 |
| AS40721US | PABMC - Pennsylvania House of Representatives BMC | 256 | — | 1 |
| AS54345US | FARM-BUREAU-MUTUAL-INSURANCE-OF-IDAHO-01 - FARM BUREAU MUTUAL INSURANCE COMPANY OF IDAHO | 256 | 1 | 2 |
| AS54824US | ITSINC-SHAZAMNETWORK - ITS, INC. | 256 | — | 1 |
| AS395271US | TBOSA-SAT-HQ - The Bank of San Antonio | 256 | — | 1 |
| AS23086US | POUNDBANG-HOSTING - Pound Bang Incorporated | 256 | — | 1 |
| AS46107US | TPG-GLOBAL-AS - TPG Global, LLC | 256 | — | 1 |
| AS29952US | XVAND-ISUTILITY - Xvand Technology Corp. | 256 | — | 1 |
| AS398641US | CHCFLORG-001 - Community Health Centers, Inc. | 256 | — | 1 |
| AS400225US | NORDSON-192 - Nordson Corporation | 256 | — | 1 |
| AS16676US | BARCHARTCOM - Barchart.com, Inc. | 256 | — | 1 |
| AS32197US | SEDC-ATL1-US - Meridian Cooperative, Inc. | 256 | — | 1 |
| AS30467US | VONAGE-03 - Vonage Holdings, Inc. | 256 | — | 1 |
| AS11418US | LIGHTEDGE-AS-03 - LightEdge Solutions | 256 | 4.1K | 2 |
| AS23476US | CENTRICAZ-ASN - Centric Fiber Arizona | 256 | — | 1 |
| AS62702US | AS62702 - Nimble Storage, Inc. | 256 | — | 1 |
| AS3856US | PCH-AS - Packet Clearing House, Inc. | 256 | 1 | 2 |
| AS395223US | DIRECTV-ENGINEERING-VPL - DIRECTV, LLC | 256 | — | 1 |
| AS397060US | VIN-01 - Veterinary Information Network, Inc. | 256 | — | 1 |
| AS210655US | LaCrette Brian LaCrette | 256 | 1 | 2 |
| AS54273US | PADSUN - The Paducah Sun | 256 | — | 1 |
| AS206142US | InternetTV Internet TV, Inc. | 256 | — | 1 |
| AS40673US | SHELTERCUSTOMER - Shelter Mutual Insurance | 256 | — | 1 |
| AS401785US | DATA -SAFE-SERVICES - Data Safe Services LLC | 256 | — | 1 |
| AS399311US | FRONTIER-CORP - Frontier Networks Corp | 256 | — | 1 |
| AS402220US | KIRKLAND-ELLIS-NV - Kirkland & Ellis LLP | 256 | — | 1 |
| AS397837US | GEICO-CNAB - GEICO | 256 | — | 1 |
| AS401830US | KEYSTONE-COLLECTIONS-GROUP-01 - Keystone Collections Group | 256 | — | 1 |
| AS399204US | PST - White Iron LLC | 256 | 4.1K | 2 |
| AS393690US | AS-MARITIME - Massachusetts Maritime Academy | 256 | — | 1 |