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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,174 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,940 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,379 |
| 1.5K |
| 65.6K |
| 8 |
| AS399471US | AS-DESEQUITY - Des Equity LLC | 1.5K | — | 6 |
| AS19462US | USSCO-AS19462 - Essendant Co. | 1.5K | — | 4 |
| AS399852US | HDD-BROADBAND - HDD Broadband Inc. | 1.5K | 4.1K | 4 |
| AS7014US | XO-AS7014 - Verizon Business | 1.5K | — | 6 |
| AS399700US | MANSFIELD-COMMUNITY-FIBER - Mansfield Community Fiber, Inc | 1.5K | 4.6K | 5 |
| AS46734US | GSENA1 - GDF Suez Energy North America, INC | 1.5K | — | 2 |
| AS25676US | FEDEX-FREIGHT - FedEx Freight, Inc. | 1.5K | — | 6 |
| AS394109US | CFH - CFH CABLE INC | 1.5K | 589.8K | 8 |
| AS63154US | DCCC - Delaware County Community College | 1.5K | 512 | 8 |
| AS27373US | DOUGLAS-COUNTY-COMMUNITY-NETWORK - Douglas County PUD | 1.5K | 256 | 6 |
| AS393582US | KHP-DLA-ASN-01 - VIDEO DIRECT SATELLITE & ENTERTAINMENT | 1.5K | 65.5K | 7 |
| AS13698US | SHAWINDUSTRIES - Shaw Industries Group, Inc. | 1.5K | — | 6 |
| AS19572US | OMEGASYS-HQ - Omega Systems Consultants, LLC | 1.5K | — | 3 |
| AS22803US | NOV-AS - National Oilwell Varco, Inc. | 1.5K | — | 6 |
| AS35953US | VIRTEL-16 - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS396970US | COMMANDLINK - CommandLink, LLC | 1.5K | 4.1K | 8 |
| AS22344US | ABC-SUPPLY-CO - ABC Supply Co. | 1.5K | — | 5 |
| AS40321US | ESB - Emigrant Bank | 1.5K | — | 3 |
| AS11483US | CONVIVA-AS - Conviva, Inc. | 1.5K | 3 | 9 |
| AS33345US | SIERRADATACENTERS - Sierra Experts | 1.5K | 4.1K | 4 |
| AS53254US | USSCO-AS - Essendant Co. | 1.5K | — | 4 |
| AS399870US | BYNARIUM-BACKBONE - BYNARIUM LLC | 1.5K | 773 | 14 |
| AS13624US | SNC-SPARKS - Sierra Nevada Corporation | 1.5K | — | 4 |
| AS33015US | LASCASN - Los Angeles Superior Court of California | 1.5K | — | 6 |
| AS36433US | AS-BCLLP - Bryan Cave LLP | 1.5K | — | 6 |
| AS40279US | FORESTRACKS - ForestRacks | 1.5K | 144 | 9 |
| AS14255US | AS-USD - University of San Diego | 1.5K | — | 6 |
| AS33729US | JAVITS - Jacob K. Javits Convention Center | 1.5K | — | 2 |
| AS13621US | REINSURANCE - Reinsurance Group of America, Incorporated | 1.5K | — | 6 |
| AS32062US | ARMSTRONGWORLD-01 - Armstrong World Industries, Inc. | 1.5K | — | 6 |
| AS399254US | Z3N-LYCO - Lyons Communications | 1.5K | 4.1K | 4 |
| AS22338US | ALLY-INVEST - Ally Financial Inc. | 1.5K | — | 4 |
| AS62490US | COMINTECH - Comintech Corp | 1.5K | — | 6 |
| AS12239US | BLOOMINGTON-SD87 - Bloomington Public School District No. 87 | 1.5K | — | 2 |
| AS18995US | CLACKAMAS-ASN - Clackamas County | 1.5K | 256 | 3 |
| AS26950US | LIPPERT-AS1 - Lippert Components Manufacturing, Inc. | 1.5K | — | 2 |
| AS395821US | PENNWISP - Penn Wisp, LLC | 1.5K | — | 2 |
| AS13496US | BELCAN - Belcan Corporation | 1.5K | — | 5 |
| AS11227US | AS-DALLAS - Morningstar, Inc. | 1.5K | — | 4 |
| AS17351US | THINQ - THINQ | 1.5K | — | 3 |
| AS54603US | WEGMANS-FM - Wegmans Food Markets, Inc. | 1.5K | — | 4 |
| AS400799US | PUFFERFISH-STUDIOS - Pufferfish Studios LLC | 1.5K | 8 | 8 |
| AS398876US | RVIT-7TRIBES - Round Valley Indian Tribes | 1.5K | — | 2 |
| AS25771US | MAXIM-60 - PSI/Maximus | 1.5K | — | 4 |
| AS33723US | LENNAR - Lennar Corporation | 1.5K | — | 3 |
| AS399266US | PONENET - Z Plus LLC | 1.5K | 2 | 8 |