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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 | 3,136 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.5M | 20,721 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 73.1M | 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC |
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.
| 68.3M |
| 366 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 66.4M | 1,106 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 47.9M | 3,574 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,926 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.2M | 4,508 |
| 58.1K |
| — |
| 6 |
| AS12041US | AS-AFILIAS1 - Afilias, Inc. | 57.9K | 225 | 451 |
| AS14744US | INTERNAP-BLOCK-4 - Unitas Global | 57.6K | 65.5K | 37 |
| AS400194US | WIRE3 - Wire 3 LLC | 57.6K | 7.4K | 44 |
| AS919US | AS919 - The Howard University | 57.3K | — | 8 |
| AS14291US | ANTIETAM - Antietam Broadband | 57.1K | — | 29 |
| AS12208US | TRUVISTA - TruVista Communications | 57.1K | 66.6K | 242 |
| AS11452US | MOUNT-SINAI - Mount Sinai School of Medicine | 57.1K | — | 14 |
| AS23338US | ASN-DCS-01 - DCS Pacific Star, LLC | 57.1K | — | 52 |
| AS2707US | FIRSTCOMM-AS1 - First Communications LLC | 56.6K | 28.7K | 22 |
| AS2559US | VISANET-1 - VISA INTERNATIONAL SERVICE ASSOCIATION | 56.6K | — | 62 |
| AS22343US | VONAGE-BUSINESS - Vonage Business Inc. | 56.3K | 66.6K | 57 |
| AS63394US | EIDG-AS1 - Eastern Iowa IP, LLC | 56.1K | 65.5K | 98 |
| AS33659US | CMCS - Comcast Cable Communications, LLC | 55.8K | 136 | 211 |
| AS11904US | ATOM-MI-53-198 - AcenTek | 55.8K | 4.6K | 34 |
| AS12086US | DT-MICRO - DT Micro, inc. | 55.8K | — | 110 |
| AS3606US | CONNCOLL-AS - Connecticut College | 55.6K | — | 10 |
| AS6653US | VERO-NETWORKS-AS6653 - Vero Broadband | 55.6K | 65.5K | 42 |
| AS33387US | NOCIX - Nocix, LLC | 55.6K | 589.8K | 32 |
| AS402169US | USCLOUD INC - Uscloud Inc | 55.3K | — | 32 |
| AS15305US | SYRINGANETWORKS - Syringa Networks, LLC | 55.3K | 81.9K | 30 |
| AS13638US | METALINK - Metalink Technologies, Inc. | 55K | 65.5K | 86 |
| AS36374US | STELLAR-ASSOCIATION - Stellar Association, LLC | 54.8K | 65.5K | 18 |
| AS7828US | DRMSCPASN - Northland Communications | 54.5K | 98.3K | 117 |
| AS54641US | IMH-IAD - InMotion Hosting, Inc. | 54.5K | 2 | 57 |
| AS13904US | COSLINK - Cherryland Services Inc | 54.3K | 4.1K | 144 |
| AS6075US | LM-CORP - Lockheed Martin Corporation | 54.3K | — | 186 |
| 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 |
| AS29852US | HONEST - Honest Networks, LLC | 53.8K | — | 31 |
| AS14155US | RURAL-TELEPHONE-SVCCO - Rural Telephone Service Co, Inc. | 53.5K | 65.5K | 18 |
| AS400220US | PEARLCOMMFIBER-01 - PearlComm | 53.5K | 65.5K | 85 |
| AS10352US | WCTC - Solarus | 53.5K | 65.5K | 58 |
| AS54179US | VCOE - Ventura County Office of Education | 53.2K | — | 59 |
| AS25609US | DMC - Detroit Medical Center | 53K | — | 30 |
| AS4983US | INTEL-SC-AS - Intel Corporation | 53K | — | 110 |
| 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 |
| AS10913US | INTERNAP-BLK - Unitas Global | 52.2K | 65.5K | 34 |
| AS397373US | H4Y-TECHNOLOGIES - H4Y Technologies LLC | 52.2K | 4.1K | 177 |
| AS27553US | TELNET - Telnet Worldwide, Inc. | 52.2K | 65.5K | 9 |
| AS22191US | WILKES-COMM - Wilkes Communications, Inc. | 52.2K | 1.8K | 49 |
| AS16604US | FWB-NE - HUNTEL.NET | 52.2K | 98.3K | 88 |
| AS15011US | JAGUAR-1 - Jaguar Communications | 52.2K | — | 55 |
| AS30688US | FASTTRACK-NET-AS - FastTrack Communications Inc. | 52K | 66.6K | 55 |