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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,525 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,309 |
| 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.
32,245 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 991 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 768 |
| — |
| 2 |
| AS29823US | PBC-WA - Premera Blue Cross | 768 | — | 2 |
| AS22395US | TORNADOCOMP - Tornado Computer Systems, Inc. | 768 | — | 2 |
| AS6591US | INGR-ASN - Intergraph Corporation | 768 | — | 3 |
| AS54174US | BCBST - BlueCross BlueShield of Tennessee | 768 | — | 3 |
| AS32863US | TRINSICTECH - Trinsic Technologies, Inc. | 768 | — | 3 |
| AS11230US | MHSFL - Managed Hosting Services, LLC | 768 | — | 3 |
| AS63404US | AGIOS - Agios Pharmaceuticals, Inc. | 768 | — | 3 |
| AS27608US | RIPPECLOUD - Rippe & Kingston, LLC | 768 | — | 3 |
| AS7285US | SAGENET - SageNet LLC | 768 | — | 3 |
| AS401731US | ROLL-TIDE - The University of Alabama Athletics | 768 | 1 | 4 |
| AS399078US | 9STONE-LLC - 9STONE LLC | 768 | 1 | 3 |
| AS12245US | PRMC-ASN - Peninsula Regional Medical Center | 768 | — | 3 |
| AS400004US | SECURENET - SecureNet | 768 | 65.5K | 5 |
| AS400001US | DULUTHTRADING - Duluth Holdings Inc. | 768 | — | 2 |
| AS14776US | YAHOO - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS397283US | ROCKETNODE - SPARKED HOST LLC | 768 | — | 2 |
| AS32267US | WILLOWEB - Willoweb, LLC | 768 | — | 2 |
| AS20075US | RFERL-ORG - Radio Free Europe | 768 | — | 3 |
| AS397625US | TPC - Tessy Plastics Corp. | 768 | — | 2 |
| AS16830US | EIS-EQUINIX-AS - EIS Group, INC | 768 | — | 3 |
| AS398542US | ONECHRONOS - OneChronos | 768 | — | 3 |
| AS394344US | NETACTUATE - NetActuate, Inc | 768 | 4.1K | 4 |
| AS53951US | GLMX-AS - GLMX, LLC | 768 | — | 3 |
| AS40827US | HUDSON-RIVER-TRADING-LLC - Hudson River Trading LLC | 768 | — | 3 |
| AS19111US | NBTY1911 - The Nature's Bounty Co. | 768 | — | 3 |
| AS22273US | GWCCNET-ASN - Great West Casualty Company | 768 | — | 3 |
| AS22535US | EPLINC - EPL INC | 768 | — | 3 |
| AS46106US | JACKSON-HEALTHCARE - Jackson Healthcare, LLC | 768 | — | 3 |
| AS402472US | POPCORN - Popcorn | 768 | — | 3 |
| AS62850US | PELSC-DC - OnTrack Systems LLC | 768 | 256 | 4 |
| AS26307US | HORACE-MANN-EDUCATORS-CORPORATION - Horace Mann Service Corporation | 768 | — | 3 |
| AS32032US | ORGILL-AS - Orgill, Inc. | 768 | — | 3 |
| AS395800US | JCPN-AS - JEFFERSON COUNTY PUD NO. 1 | 768 | — | 2 |
| AS23008US | NORC-1 - NORC | 768 | 2 | 5 |
| AS400418US | RIO-RANCHO-PUBLIC-SCHOOLS - Rio Rancho Public Schools | 768 | — | 3 |
| AS40955US | REDHAT-DC-BOS2 - Red Hat, Inc. | 768 | 1 | 3 |
| AS15062US | MERIDIAN-BUSINESS-CENTERS - Meridian Business Centers | 768 | — | 2 |
| AS393707US | ABM-IND - ABM Industries | 768 | — | 3 |
| AS31776US | BUSINESS-WIRE-NY - Business Wire | 768 | — | 2 |
| AS36406US | US-FIRE-INSURANCE-COMPANY - United States Fire Insurance Company | 768 | — | 3 |
| AS33755US | VALORNODE - Valor Holdings LLC | 768 | 13 | 16 |
| AS13754US | TKFAST - TkFast Inc | 768 | — | 2 |
| AS400566US | POWERSERG - PowerSerg Data Systems Inc | 768 | 4.1K | 4 |
| AS398964US | AVEVA-AMER - AVEVA Inc | 768 | — | 3 |
| AS397008US | WBC-ASN-01 - Weigel Broadcasting Co | 768 | — | 3 |
| AS23067US | AS23067 - Orange County, Florida | 768 | — | 3 |