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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 | 24,346 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 512 |
| — |
| 1 |
| AS401500US | KARRIER-ONE-01 - Karrier One Inc. | 512 | — | 1 |
| AS50389US | PHOENIXNAP-DE PHOENIX NAP, LLC. | 512 | 2 | 4 |
| AS54766US | DC-ASN-01 - Hilton Resorts Corporation | 512 | — | 2 |
| AS398053US | COMPENTERPRISE - Comporium, Inc | 512 | — | 2 |
| AS18833US | ASHP-NETWORK - American Specialty Health Plans of CA, Inc. | 512 | — | 2 |
| AS55257US | LOU1-STRATAPOINTE - Strata Pointe Technologies LLC | 512 | — | 1 |
| AS11741US | BENTONREA - BENTON REA POWERNET | 512 | — | 2 |
| AS23734US | NETROUTINGINC-AS-AP - Netrouting Inc | 512 | — | 2 |
| AS18577US | MIC-64 - ManTech International Corporation | 512 | — | 2 |
| AS397273US | RENDER - Render | 512 | — | 2 |
| AS53697US | MOHELA - MOHELA | 512 | — | 2 |
| AS46870US | NJRNET-2009 - New Jersey Resources | 512 | — | 2 |
| AS33318US | AS-AHC-80 - Agfa HealthCare Corporation | 512 | — | 2 |
| AS395737US | UFCU - University Federal Credit Union | 512 | — | 2 |
| AS60506US | OUTHTECH 21 Enterprises, LLC | 512 | — | 2 |
| AS18702US | DEGENET-AS - DEGE NETWORK TECHNOLOGIES LLC | 512 | — | 2 |
| AS398351US | MAYMOBILITY - May Mobility, Inc | 512 | 2 | 4 |
| AS16392US | PIONEER-STANDARD - Agilysys Inc. | 512 | — | 2 |
| AS55049US | ASN-SCL - Samlyn Capital, LLC | 512 | — | 2 |
| AS394153US | VELOXINET - Veloxinet | 512 | — | 2 |
| AS32225US | MCGRAW-BCM - BCM One, Inc. | 512 | — | 2 |
| AS394129US | USS - United Site Services | 512 | — | 2 |
| AS398863US | WHITECAP - White Cap Construction Supply | 512 | — | 2 |
| AS23082US | MPHI - Michigan Public Health Institute | 512 | — | 2 |
| AS19125US | ROCK-NET - Rockford Corporation | 512 | — | 2 |
| AS396877US | VINTERCHANGE - Vinterchange, Inc | 512 | — | 2 |
| AS398943US | LMS-ASN-01 - Liberator Medical Supply, Inc. | 512 | — | 2 |
| AS394912US | ALL-IN-1 - Act 1 Group, Inc. | 512 | — | 2 |
| AS19652US | VACATION-EXPRESS - VACATION EXPRESS | 512 | — | 2 |
| AS4224US | CALYX-AS - The Calyx Institute | 512 | 1 | 3 |
| AS26157US | LOSTCIPHER-CONSULTING - Lostcipher Consulting | 512 | 512 | 4 |
| AS14939US | THRES - THRESHOLD COMMUNICATIONS,INC. | 512 | 8.2K | 4 |
| AS36009US | TGNA-KGW - TEGNA Inc. | 512 | — | 2 |
| AS395442US | HERITAGEBANK - Heritage Bank | 512 | — | 2 |
| AS393846US | ROUTER12-NETWORKS-UN - Router12 Networks LLC | 512 | — | 2 |
| AS62891US | ASN-CHIEF-1 - CHIEF INDUSTRIES, INC. | 512 | — | 1 |
| AS46787US | RXLINC-INC - RXLINC LLC | 512 | — | 2 |
| AS19131US | LIVESS-01 - Living Essentials, LLC | 512 | — | 2 |
| AS26714US | NORTHEAST-TEXAS-COMMUNITY-COLLEGE - Northeast Texas Community College | 512 | — | 2 |
| AS36551US | COMPASSION-INTL-GMC1 - Compassion International, Inc. | 512 | — | 2 |
| AS393971US | MLKJAMHC - Martin Luther King Jr., Healthcare Corporation | 512 | — | 2 |
| AS22230US | NETDOCUMENTS-US - NetDocuments | 512 | — | 2 |
| AS393400US | LUXOTTICA-NA2 - Luxottica of America Inc. | 512 | — | 1 |
| AS17038US | FLORI-62 - FTD | 512 | — | 2 |
| AS399676US | KANIKSU-01 - Kaniksu, LLC | 512 | — | 2 |
| AS62918US | ASTM-INTL - American Society for Testing and Materials - ASTM | 512 | — | 2 |