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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 |
| 47.1K |
| 429 |
| 549 |
| AS33491US | COMCAST-33491 - Comcast Cable Communications, LLC | 47.1K | 204 | 286 |
| AS16604US | FWB-NE - HUNTEL.NET | 46.8K | 81.9K | 73 |
| AS46269US | KRONOS-MA - UKG Kronos Systems, LLC | 46.8K | 1 | 75 |
| AS395228US | ADIENT - Adient US LLC | 46.8K | — | 25 |
| AS55039US | FATBEAM-AS - Fatbeam, LLC | 46.8K | 4.6K | 81 |
| AS30598US | CCL-ASN - Carnival Corporation | 46.8K | 1 | 19 |
| AS32329US | MONKEYBRAINS - Another Corporate ISP, LLC | 46.6K | 65.5K | 36 |
| AS11396US | TWC-ASN - Williams Information Technology LLC | 46.6K | — | 25 |
| AS395015US | SUNY-FREDONIA - SUNY College at Fredonia | 46.6K | — | 91 |
| AS62468US | HKCLOUDX - VpsQuan L.L.C. | 46.6K | — | 72 |
| AS400186US | SINGING-RIVER-CONNECT - Singing River Connect, LLC | 46.6K | — | 83 |
| AS26479US | SDC-AS - Point Broadband Fiber Holding, LLC | 46.6K | 65.5K | 31 |
| AS46410US | CFEC-1 - Central Florida Electric Cooperative, Inc. | 46.6K | 65.5K | 79 |
| AS22926US | AS-WISPER - Wisper ISP, LLC | 46.1K | 65.5K | 18 |
| AS571US | DNIC-AS-00571 - United States Department of Defense (DoD) | 46.1K | 1 | 64 |
| AS40545US | EMPIRE-40545 - Empire Access | 45.8K | 65.5K | 12 |
| AS20283US | CTC-INTERNET-MN - CONSOLIDATED TELEPHONE COMPANY | 45.8K | 65.5K | 18 |
| AS25993US | ATT-LABS-AUSTIN-TX - AT&T Enterprises, LLC | 45.6K | 2 | 25 |
| AS26727US | BBTEL - Brandenburg Telephone Company | 45.6K | 70.4K | 31 |
| AS22697US | ROBLOX-PRODUCTION - Roblox | 45.3K | 268 | 62 |
| AS13692US | DFN-ASN-1 - Douglas FastNet | 45.3K | 65.5K | 31 |
| AS7151US | COLOGIX-SV - Cologix, Inc | 45.1K | 65.5K | 6 |
| AS32709US | 1-JOINK - Joink, LLC | 45.1K | 65.5K | 5 |
| AS26744US | PCL - Planters Communications, LLC | 45.1K | 131.1K | 73 |
| AS29789US | REFLECTED - Reflected Networks, Inc. | 45.1K | 65.6K | 58 |
| AS11191US | CALNET - Cal.net, Inc. | 45.1K | — | 78 |
| AS5048US | FIBER - FIBERNET Corp. | 44.8K | — | 10 |
| AS394695US | PUBLIC-DOMAIN-REGISTRY - PDR | 44.8K | — | 48 |
| AS395793US | ARISK-COMMUNICATIONS-INC - Arisk Communications inc. | 44.5K | — | 155 |
| AS22125US | PFPC - PNC Bank N.A. | 44.3K | — | 41 |
| AS21554US | CYBERLYNK - Wisconsin CyberLynk Network, Inc. | 44.3K | 131.1K | 64 |
| AS26463US | MISD-NET - Macomb Intermediate School District | 44.3K | — | 46 |
| AS53587US | AZT - AZURE TECHNOLOGY CO., LIMITED | 44.3K | 65.5K | 84 |
| AS40913US | QTS-SJC - Quality Technology Services, LLC | 44K | 65.6K | 22 |
| AS16582US | NEXTLEVELINTERNET - NEXT LEVEL INTERNET, INC. | 43.8K | — | 43 |
| AS393397US | LREC-LRT - Lake Region Electric Cooperative, Inc | 43.8K | 65.5K | 64 |
| AS36545US | BLEDSOE - Bledsoe Telephone Cooperative Corporation | 43.5K | — | 51 |
| AS29968US | ASN-NETSYNC - Dunkirk & Fredonia Telephone Company | 43.5K | — | 37 |
| AS40285US | NORTHLAND-CABLE - NORTHLAND CABLE TELEVISION INC. | 43.3K | — | 138 |
| AS63018US | DEDICATED - Dedicated.com | 43.3K | 65.5K | 155 |
| AS3842US | RAMNODE - InMotion Hosting, Inc. | 43.3K | 14 | 56 |
| AS36012US | HUNTER-COMM - HUNTER COMMUNICATIONS | 43.3K | 131.1K | 17 |
| AS16406US | AS-INTERMEDIA - Intermedia.net, Inc. | 43.3K | — | 44 |
| AS46208US | PFNL-ASN - Peninsula Fiber Network, LLC | 43K | 229.4K | 53 |
| AS11668US | WCI-NET - WEST COAST INTERNET INCORPORATED | 43K | — | 60 |
| AS19531US | NODESDIRECT - Nodes Direct | 43K | 1M | 13 |