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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 2.8K |
| 1 |
| 6 |
| AS12169US | AS12169 - Kyndryl | 2.8K | — | 11 |
| AS63304US | HILLTOP-BROADBAND - HILLTOP BROADBAND | 2.8K | — | 8 |
| AS30197US | BEST-WESTERN-INTERNATIONAL-INC - Best Western International, Inc. | 2.8K | — | 5 |
| AS19803US | ASNBLK-VTLA2 - NTT Global Networks Incorporated | 2.8K | — | 11 |
| AS22608US | OKPUD-WA - Public Utility District No. 1 of Okanogan County | 2.8K | 65.5K | 12 |
| AS54054US | DETEQUE - Deteque | 2.8K | 65.5K | 7 |
| AS55001US | CYBERSTREET-NET - CyberStreet | 2.8K | — | 8 |
| AS27348US | SURFNET-1 - Surfnet Communications, Inc. | 2.8K | — | 11 |
| AS54781US | SYSCO-AS - Sysco Corporation | 2.8K | — | 6 |
| AS14043US | SCANSOURCE - ScanSource, Inc. | 2.8K | — | 7 |
| AS27399US | BAM-US - Balyasny Asset Management L.P. | 2.8K | — | 11 |
| AS206286US | ONEOF1SERVERS 1 of 1 Servers Corp | 2.8K | — | 11 |
| AS33755US | VALORNODE - Valor Holdings LLC | 2.8K | 13 | 21 |
| AS46817US | MTAINC - Midwest Telecom of America, Inc | 2.8K | — | 11 |
| AS11164US | INTERNET2-I2PX - Internet2 | 2.8K | 8 | 14 |
| AS14882US | QUAD-GRAPHICS - Quad/Graphics Inc. | 2.8K | — | 7 |
| AS40630US | GRIDFURY-AS - GridFury, LLC | 2.8K | 73.7K | 8 |
| AS40073US | NBA-ASN-USA - NBA Properties, Inc. | 2.8K | — | 9 |
| AS63466US | AS-COMMU-166 - Communication Construction Services Inc. | 2.8K | — | 4 |
| AS10690US | NETSCOUT - NETSCOUT SYSTEMS INC. | 2.8K | 1 | 12 |
| AS400471US | WEC-ASN - WHEATLAND ELECTRIC COOPERATIVE, INC | 2.8K | — | 7 |
| AS395403US | NS1-INFRA - NSONE Inc | 2.8K | 17 | 28 |
| AS34985US | NETINNOVATIONLLC-AS-AP - Net Innovation LLC | 2.8K | — | 11 |
| AS63427US | HASERVICES - Computer Design & Integration LLC | 2.8K | — | 10 |
| AS13897US | CDC1 - Internet Brands Inc. | 2.8K | — | 3 |
| AS8076US | HUD - Department of Housing and Urban Development | 2.8K | 2 | 13 |
| AS393706US | NELSONCABLE - Nelson Cable, Inc | 2.8K | 65.5K | 6 |
| AS17014US | NAN - North Atlantic Networks, LLC | 2.8K | — | 11 |
| AS214456US | SERVERSP-AS ServerSP LLC | 2.8K | 6 | 17 |
| AS397285US | CAMBRIDGETELEPHONECO - Cambridge Telephone | 2.8K | — | 5 |
| AS11795US | AS11795 - Sony | 2.8K | 4 | 14 |
| AS35860US | IMAGINE-NETWORKS-IMGNET - Imagine Networks | 2.8K | — | 9 |
| AS399917US | SEAMLESS-FIBER-INNOVATIONS - Seamless Fiber Innovations L.L.C. | 2.8K | — | 11 |
| AS6404US | FACTSET - FactSet Research Systems, Inc. | 2.8K | — | 10 |
| AS63407US | TERRA-MULTI-HOMED - Terracon Consultants, Inc. | 2.8K | — | 10 |
| AS397780US | ALMA-COMMUNICATIONS - Alma Telephone Company | 2.8K | — | 4 |
| AS54913US | CLOUDWEBMANAGE-CANADA - Kamatera, Inc. | 2.8K | 2 | 13 |
| AS1086US | GET-REAL-CABLE-ASN - Get LLC | 2.8K | — | 8 |
| AS15071US | BAX-BGP - BAX GLOBAL | 2.8K | — | 5 |
| AS54246US | AFNI-INTERNET - AFNI, Inc. | 2.8K | — | 4 |
| AS16640US | SILICON-VALLEY-BANK - First-Citizens Bank & Trust Company | 2.8K | — | 11 |
| AS399111US | CAMELLIA-FIBER - CAMELLIA FIBER | 2.8K | 65.5K | 6 |
| AS10340US | TELE-TECH - TELE-TECH CO. INC. | 2.8K | — | 5 |
| AS6553US | HTCNET-ORG - HTCNET.ORG | 2.8K | — | 6 |
| AS56443US | IWL-44-56443 - IP WAY LLC | 2.8K | — | 11 |
| AS20034US | FIRST-NATIONAL-TECHNOLOGY-SOLUTONS - First National Technology Solutions, Inc. | 2.8K | — | 5 |