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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,162 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,670 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,950 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| 256 |
| 2 |
| 3 |
| AS21721US | BLT-US-01 - Blount International, Inc | 256 | — | 1 |
| AS396094US | PERPETUAL-STORAGE-INC - Perpetual Storage, Inc. | 256 | — | 1 |
| AS13852US | AS-PCI-01 - Peppermill Casinos, Inc. | 256 | — | 1 |
| AS46885US | CIML-6-US - Carlyle Investment Management L.L.C. | 256 | — | 1 |
| AS15272US | MIH-10-15272 - Miami International Holdings, Inc | 256 | — | 1 |
| AS30668US | MADISONCOUNTYNY-01 - Madison County New York | 256 | — | 1 |
| AS22358US | VERDUGO-FIRE-COMM-CENTER-1 - Verdugo Fire Communications Center | 256 | — | 1 |
| AS45813US | SAGENTMCLLC-AS-AP - Sagent M&C, LLC | 256 | — | 1 |
| AS400661US | WIA-ORIG-01 - Western Iowa Wireless Inc | 256 | — | 1 |
| AS399741US | BN-AS-01 - BAE Networks | 256 | — | 1 |
| AS399393US | OM-LOZ-AS - Lozier Corporation | 256 | — | 1 |
| AS399292US | UAMTCORP-01 - UAM Technologies Corp | 256 | — | 1 |
| AS401766US | THE-LOT - Studio Lending Group, LLC | 256 | — | 1 |
| AS16678US | AUSRAD - Austin Radiological Association | 256 | — | 1 |
| AS401310US | PMTC-ASN - Palmer Mutual Telephone Company | 256 | 4.1K | 2 |
| AS13715US | USL-ASN - Upsher-Smith Laboratories Inc. | 256 | — | 1 |
| AS399798US | NOVANTAS-01 - Novantas, Inc. | 256 | 1 | 2 |
| AS399476US | BETHESDA - Bethesda Wireless and Fiber | 256 | — | 1 |
| AS36197US | COMPUTER-DATA-INC - Computer Data, Inc. | 256 | — | 1 |
| AS399875US | SIMONMED-PUBLIC - SimonMed Imaging | 256 | — | 1 |
| AS19944US | GRANITEIX-SERVICES - GraniteIX LLC | 256 | 256 | 2 |
| AS26589US | NYSERDA - New York State Energy Research and Development Authority | 256 | — | 1 |
| AS40323US | VAFB - Virginia Farm Bureau Mutual Insurance Company | 256 | — | 1 |
| AS398336US | MODERN-WOODMEN-OF-AMERICA - Modern Woodmen of America | 256 | — | 1 |
| AS25663US | PRIDEMOBILITY - Pride Mobility Products Corporation | 256 | — | 1 |
| AS30662US | VCU-01 - Veridian Credit Union | 256 | — | 1 |
| AS393781US | HELMGROUP-FREEPORT - Helm Group, Inc. | 256 | — | 1 |
| AS26172US | CREDIT-INDUSTRIEL-ET-COMMERCIAL - Credit Industriel Et Commercial | 256 | — | 1 |
| AS393739US | AJN-DC-USA - Al Jazeera International (USA), Inc. | 256 | — | 1 |
| AS22826US | CALIPER - Caliper Corporation | 256 | — | 1 |
| AS62873US | SEQ-NET - Sequris Group, LLC | 256 | — | 1 |
| AS401962US | CUDDLE-PAWS - CuddlePaws | 256 | — | 1 |
| AS15299US | CFS-AS01 - CarsForSale.com | 256 | — | 1 |
| AS12215US | RAVANALLC01 - Right Ascension, Inc. | 256 | — | 1 |
| AS62480US | MODSPACE - Willscot | 256 | — | 1 |
| AS393700US | VANDHAM-SECURITIES - Wall Street Access | 256 | — | 1 |
| AS396261US | UNIVERSITY-OF-KENTUCKY-RESEARCH-COMPUTING - University of Kentucky Research Computing | 256 | — | 1 |
| AS18824US | PCCA-HQ - Plains Cotton Cooperative Association | 256 | — | 1 |
| AS395960US | BUCK-INSTITUTE - Buck Institute for Research on Aging | 256 | — | 1 |
| AS11208US | HCPL-AS - HALL CAPITAL PARTNERS, LLC | 256 | — | 1 |
| AS36078US | MI-DATACENTER-2019 - M/I Homes, Inc | 256 | — | 1 |
| AS398366US | LINKUP - Linkup Communications Corporation | 256 | — | 1 |
| AS399881US | WIFICARIBE - WiFi Services Caribbean, Inc. | 256 | 65.5K | 2 |
| AS26830US | ASN-OPERS - OPERS | 256 | 1 | 2 |
| AS399598US | LNS - Local Network Solutions, Inc. | 256 | 65.5K | 2 |
| AS30629US | LCLARK - Lewis & Clark College | 256 | — | 1 |