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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. | 218.1M | 24,718 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,307 |
| 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.
32,222 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 | 3,893 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,007 |
| AS701US | UUNET - Verizon Business | 43.6M | 997 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,395 |
| 512 |
| — |
| 2 |
| AS46443US | CFE-AS - Addition Financial Credit Union | 512 | — | 2 |
| AS23372US | FDIX-PUBLIC - Midwest Internet Exchange LLC | 512 | 2 | 4 |
| AS27162US | USF-FCU - USF FEDERAL CREDIT UNION | 512 | — | 2 |
| AS399210US | TSAUSWPDCPHX - The Salvation Army | 512 | — | 2 |
| AS6491US | TELEKACHINA - TeleKachina | 512 | 1 | 3 |
| AS393985US | AS-FFN - Freedom Financial Network, LLC. | 512 | — | 1 |
| AS399987US | TACOMA-PIERCE-COUNTY-HEALTH-DEPARTMENT - Tacoma-Pierce County Health Department | 512 | — | 2 |
| AS398150US | OSV - ONESOURCE VIRTUAL Inc. | 512 | — | 2 |
| AS40905US | BGP-INFOSYNC - InfoSync Services | 512 | — | 1 |
| AS36335US | TGNA-KXTV - TEGNA Inc. | 512 | — | 2 |
| AS33587US | BRECKINRIDGE-AS - Breckinridge Capital Advisors | 512 | — | 2 |
| AS400347US | APOG-BJU - Apogee Telecom Inc. | 512 | — | 1 |
| AS402107US | BITFISSURE-01 - Bitfissure LLC | 512 | 256 | 3 |
| AS283US | MPOWERLABS - MPower Labs, Inc. | 512 | — | 2 |
| AS63357US | APOG-BSC - Apogee Telecom Inc. | 512 | — | 2 |
| AS18567US | CUTX12-ASN - Credit Union of Texas | 512 | — | 2 |
| AS23247US | SAMTECNA - Samtec, inc. | 512 | — | 2 |
| AS54613US | CVDN - Converted Networks LLC | 512 | 4.1K | 4 |
| AS397784US | KTSL-ASN - Kilpatrick Townsend and Stockton, LLP | 512 | — | 2 |
| AS54208US | IRELL - IRELL AND MANELLA LLP | 512 | — | 2 |
| AS19588US | GC-1 - GOR CORPORATION | 512 | — | 2 |
| AS29711US | CENTURA-HEALTH - Centura Health Corporation | 512 | — | 2 |
| AS20246US | HOLIDAYINNSDBAYSIDE-GUEST-INTERNET - Holiday Inn San Diego Bayside | 512 | — | 1 |
| AS401306US | IR - Ingersoll Rand Inc. | 512 | — | 2 |
| AS18433US | ONESKY-FLIGHT-LLC - OneSky | 512 | — | 2 |
| AS33465US | TSP-NET - Johnson Controls Inc | 512 | — | 2 |
| AS54023US | ASIC-ONT - APPLIED SYSTEMS, INC | 512 | — | 2 |
| AS33239US | CIS-MSISAC - Center for Internet Security | 512 | — | 2 |
| AS5860US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS54425US | WORLDORG - World Organization | 512 | — | 1 |
| AS396310US | SDSU-SCIENCE-NETWORK - San Diego State University | 512 | — | 2 |
| AS20073US | RPIPRINT-INC - RPI PRINT, INC. | 512 | — | 2 |
| AS16971US | AIG-CLOUD-01 - ANSWERS IN GENESIS, INC. | 512 | — | 1 |
| AS1355US | ABELSONTAYLOR - AbelsonTaylor, Inc. | 512 | — | 2 |
| AS54794US | CGHMC-STERLING - CGH Medical Center | 512 | — | 2 |
| AS11466US | ANDREWS-FEDERAL1 - Andrews Federal Credit Union | 512 | — | 2 |
| AS401967US | EDGE-1 - Edge Internet Services, Inc. | 512 | — | 1 |
| AS402375US | KIMLEY-HORN - Kimley-Horn | 512 | — | 2 |
| AS21946US | IVSH-ATL-ASN - iVenture Solutions. LLC | 512 | — | 1 |
| AS395348US | DATASPINDLE - DataSpindle | 512 | 2K | 4 |
| AS10918US | ACCURANT - Accurant Cloud Services LLC | 512 | 65.5K | 3 |
| AS136899US | PHOENIXNAP-AS-SG3 - PhoenixNAP | 512 | 257 | 4 |
| AS20276US | GDVL - Global Data Vault, L.L.C | 512 | — | 2 |
| AS400398US | MFSG - Money Mart Financial Services Group | 512 | — | 1 |
| AS33468US | EOJ1 - Locknet | 512 | — | 2 |
| AS46821US | GSTBOCES - Greater Southern Tier (GST) BOCES | 512 | — | 1 |