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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 |
| 1.5K |
| 65.5K |
| 9 |
| AS18486US | VTLA - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS47074US | AEG - AEG | 1.5K | — | 3 |
| AS401922US | MIXBOOST - VERYBOOST INC | 1.5K | 1 | 7 |
| AS30187US | BROWARD-COUNTY-COMMISION - Broward County | 1.5K | — | 6 |
| AS46202US | MICHAELS-ATT-DS3 - Michaels Stores, Inc. | 1.5K | — | 6 |
| AS11829US | CADENCE - Cadence Design Systems, Inc. | 1.5K | — | 6 |
| AS25751US | VALUECLICK - Conversant, Inc. | 1.5K | 48 | 8 |
| AS62988US | ARTCENTERCAMPUSES - Art Center College of Design | 1.5K | — | 6 |
| AS397745US | HCAS-5 - Hanson Communications, Inc. | 1.5K | — | 2 |
| AS16560US | IDM-AS - Silvervine, Inc | 1.5K | — | 3 |
| AS398415US | EPEC - EPEC Technologies, LLC | 1.5K | 4.1K | 4 |
| AS11892US | PEARSON-NA - NCS Pearson Inc. | 1.5K | — | 3 |
| AS400335US | CCTHITA-ASN-1 - Central Council of the Tlingit and Haida Indian Tribes of Alaska | 1.5K | — | 3 |
| AS22497US | LEHIGH-WIFI - Lehigh WiFi LLC | 1.5K | 256 | 4 |
| AS13839US | P1P3R - Piper Sandler Companies | 1.5K | — | 6 |
| AS399457US | NWTEL-CATV - NEW WINDSOR TELEPHONE CO | 1.5K | — | 5 |
| AS400523US | INTERSYSTEMS - InterSystems Corporation | 1.5K | — | 5 |
| AS2641US | TSRI-AS - The Scripps Research Institute | 1.5K | — | 6 |
| AS26912US | NCH-AS1 - Northwest Community Hospital | 1.5K | — | 6 |
| AS400978US | GETREALIP-ASN1 - 34 | 1.5K | 6 | 12 |
| AS62586US | TRACE-ONE - Trace One Inc. | 1.5K | — | 3 |
| AS19677US | NJTRANSIT - NJTRANSIT | 1.5K | — | 6 |
| AS63366US | TINTRI - Tintri Inc. | 1.5K | — | 3 |
| AS395503US | COMTEC-ASN - ComTec Cloud | 1.5K | — | 3 |
| AS1379US | AS1379 - SINCH INTERCONNECT LLC | 1.5K | — | 6 |
| AS46315US | BLOSSOM-TX - Blossom Telephone Company | 1.5K | — | 2 |
| AS19067US | VAILSYS - Vail Systems, Inc. | 1.5K | — | 6 |
| AS32381US | GOOGLE CLOUD NETWORKING - Google Access LLC | 1.5K | 3 | 6 |
| AS1855US | RBT-EDGE - RTX BBN Technologies, Inc. | 1.5K | — | 3 |
| AS17203US | BMTC-01 - Beresford Municipal Telephone Company | 1.5K | — | 6 |
| AS26370US | AS-PALCOM - Pal Communications LLC | 1.5K | 4.1K | 7 |
| AS10930US | NOVA-INTERNET - Nova Internet Services, Inc. | 1.5K | — | 6 |
| AS40837US | GLDFLDACCESS - Goldfield Telephone Company, LLC | 1.5K | — | 6 |
| AS14982US | DQ-ASN - Dynamic Quest, Inc. | 1.5K | — | 2 |
| AS23003US | MWAA - Metropolitan Washington Airports Authority | 1.5K | — | 3 |
| AS399079US | LINCTEL - Linctel Communications Inc. | 1.5K | — | 6 |
| AS393770US | BICOM-US - Bicom Systems | 1.5K | 2 | 7 |
| AS393282US | UCB-1 - University of California at Berkeley | 1.5K | 1 | 7 |
| AS63083US | CHAPINTELEPHONE - Chapin Long Distance, Inc. | 1.5K | — | 2 |
| AS212400US | DEDIROOM-LLC DEDIROOM LLC | 1.5K | — | 6 |
| AS13517US | BAKER-MCKENZIE - Baker & McKenzie | 1.5K | — | 6 |
| AS397465US | SKYNET-BROADBAND - Skynet Broadband | 1.5K | — | 3 |
| AS54697US | EVERBANK-NA - EverBank, N.A. | 1.5K | — | 6 |
| AS63370US | GSOC-63370 - Georgia System Operations, Corporation | 1.5K | — | 6 |
| AS54286US | AS-TAIPEI-ARIN - TAIPEI101 NETWORK LLC | 1.5K | 21 | 12 |
| AS19535US | AS19535 - JetBlue Airways Corporation | 1.5K | — | 3 |