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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 |
| 57.3K |
| — |
| 224 |
| AS402224US | MERCEDCOUNTY-ASN-1 - Merced County Information Systems | 57.3K | — | 3 |
| AS11452US | MOUNT-SINAI - Mount Sinai School of Medicine | 57.1K | — | 14 |
| AS14291US | ANTIETAM - Antietam Broadband | 56.8K | — | 28 |
| AS2559US | VISANET-1 - VISA INTERNATIONAL SERVICE ASSOCIATION | 56.8K | — | 63 |
| AS2707US | FIRSTCOMM-AS1 - First Communications LLC | 56.6K | 28.7K | 22 |
| AS17253US | TEC-OF-JACKSON-INC - TEC of Jackson, Inc. | 56.3K | 65.5K | 23 |
| AS22343US | VONAGE-BUSINESS - Vonage Business Inc. | 56.3K | 66.6K | 57 |
| AS6653US | VERO-NETWORKS-AS6653 - Vero Broadband | 56.3K | 65.5K | 44 |
| AS15083US | INFOLINK-MIA-US - Infolink Global Corporation | 56.3K | 65.5K | 65 |
| AS3573US | ACCENTURE - Accenture LLP | 56.3K | 329.1K | 334 |
| AS11904US | ATOM-MI-53-198 - AcenTek | 56.3K | 4.6K | 35 |
| AS12086US | DT-MICRO - DT Micro, inc. | 56.1K | — | 111 |
| AS63394US | EIDG-AS1 - Eastern Iowa IP, LLC | 56.1K | 131.1K | 99 |
| AS11798US | ACEDATACENTERS-AS-1 - Ace Data Centers, Inc. | 55.8K | — | 165 |
| AS3606US | CONNCOLL-AS - Connecticut College | 55.6K | — | 10 |
| AS13638US | METALINK - Metalink Technologies, Inc. | 55.3K | 65.5K | 87 |
| AS15305US | SYRINGANETWORKS - Syringa Networks, LLC | 55K | 81.9K | 29 |
| AS33387US | NOCIX - Nocix, LLC | 55K | 65.6K | 29 |
| AS36374US | STELLAR-ASSOCIATION - Stellar Association, LLC | 54.8K | 65.5K | 18 |
| AS6075US | LM-CORP - Lockheed Martin Corporation | 54.5K | — | 187 |
| AS54641US | IMH-IAD - InMotion Hosting, Inc. | 54.5K | 2 | 57 |
| AS7828US | DRMSCPASN - Northland Communications | 54.3K | 98.3K | 116 |
| AS7341US | VELOCITY - Velocity Network, Inc. | 54.3K | — | 7 |
| AS17307US | VIRTELA-1 - NTT Global Networks Incorporated | 54K | — | 11 |
| AS11985US | ASN-SSA - Social Security Administration | 54K | 1.8K | 19 |
| AS11293US | UCOP-ASN - University of California - Office of the President | 53.8K | — | 19 |
| AS31775US | GREENLIGHT-NETWORKS - Greenlight Networks, LLC | 53.8K | 37.2K | 279 |
| AS29852US | HONEST - Honest Networks, LLC | 53.8K | — | 31 |
| AS27501US | ISPNET-AS - isp.net | 53.5K | — | 78 |
| AS13904US | COSLINK - Cherryland Services Inc | 53.2K | 4.1K | 152 |
| AS14155US | RURAL-TELEPHONE-SVCCO - Rural Telephone Service Co, Inc. | 53.2K | 65.5K | 17 |
| AS25609US | DMC - Detroit Medical Center | 53K | — | 30 |
| AS54179US | VCOE - Ventura County Office of Education | 53K | — | 58 |
| AS4983US | INTEL-SC-AS - Intel Corporation | 53K | — | 110 |
| AS33566US | KUB-FIBER-01 - Knoxville Utilities Board | 52.7K | 37.6K | 89 |
| AS10352US | WCTC - Solarus | 52.7K | 65.5K | 58 |
| AS32806US | MTNSAT-ASN-02 - MTNSAT Holdings LLC | 52.7K | 9 | 58 |
| AS14374US | AGRI-VALLEY - Agri-Valley Services Corporation | 52.7K | 65.5K | 106 |
| AS398535US | ESUHSD-ASN-1 - EAST SIDE UNION HIGH SCHOOL DIST | 52.5K | 256 | 6 |
| AS14371US | PBNET - Paul Bunyan Communications | 52.5K | 1M | 13 |
| AS22191US | WILKES-COMM - Wilkes Communications, Inc. | 52.2K | 1.8K | 49 |
| AS33154US | DQECOM - DQE Communications LLC | 52.2K | 65.5K | 27 |
| AS399007US | EASTMSCONNECT-01 - East Mississippi Connect, LLC | 52.2K | 65.5K | 51 |
| AS30688US | FASTTRACK-NET-AS - FastTrack Communications Inc. | 52K | 66.6K | 55 |
| AS15011US | JAGUAR-1 - Jaguar Communications | 51.7K | — | 53 |
| AS2635US | AUTOMATTIC - Automattic, Inc | 51.5K | 48 | 203 |