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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 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 | 4,341 |
| 1K |
| 1 |
| 3 |
| AS21683US | DALKO-NETWORKS - Dalko, LLC | 1K | — | 1 |
| AS23318US | ABBVIE-1 - AbbVie, Inc. | 1K | — | 1 |
| AS19316US | QUADRANGLE - Quadrangle Development Corporation | 1K | — | 4 |
| AS30231US | ARCADIA - Arcadia University | 1K | — | 4 |
| AS14136US | PCCC - PC Connection, Inc. | 1K | — | 4 |
| AS14079US | RTB-ASN-01 - Radio Toolbox, LLC | 1K | 4.1K | 2 |
| AS6267US | MEGAPATH3-US - GTT Americas, LLC | 1K | — | 4 |
| AS46133US | ET-ASN2 - Elite Telecom, Inc | 1K | — | 2 |
| AS400245US | AS400245 - AlphaCentri Corporation | 1K | 3 | 7 |
| AS11787US | PACOURTS-AS - Supreme Court of Pennsylvania | 1K | — | 4 |
| AS36263US | AWS-EVENTS - Amazon.com, Inc. | 1K | 576 | 10 |
| AS29749US | SINEWAVE - Sinewave, Inc. | 1K | 65.5K | 2 |
| AS26959US | TRIZETTO-AS - Cognizant Trizetto Software Group, INC. | 1K | — | 4 |
| AS4912US | CENTIER - CENTIER BANK | 1K | — | 1 |
| AS395151US | HEADLANDS-AS - Headlands Technologies LLC | 1K | — | 4 |
| AS30011US | MESSER-NORTH-AMERICA - Messer North America, Inc. | 1K | — | 4 |
| AS16610US | BLUEBIRD-WIRELESS - Bluebird Wireless Broadband Services, L.L.C. | 1K | — | 4 |
| AS29832US | METTLER-TOLEDO-AM-NOC-ASN - Mettler-Toledo LLC | 1K | — | 1 |
| AS32991US | SPECUSA-AS - Spectrum Software Solutions Inc. | 1K | — | 4 |
| AS395526US | REGALBELOIT-WAUSAU - Regal Rexnord Corporation | 1K | — | 4 |
| AS393710US | WEBAIR-INTERNET-SINGAPORE - Webair Internet Development Company Inc. | 1K | 65.5K | 2 |
| AS54993US | OPSRP-IP-1 - OpsRamp, LLC | 1K | — | 4 |
| AS27632US | TRACTORSUPPLY - Tractor Supply Company | 1K | 65.5K | 7 |
| AS62296US | vitalng Vital Network Group, LLC | 1K | 196.6K | 7 |
| AS10554US | WESTERNU-POMONA - WESTERN UNIVERSITY OF HEALTH SCIENCES | 1K | — | 4 |
| AS19245US | HOOPA-VALLEY-TRIBE - Hoopa Valley Public Utilities District | 1K | — | 1 |
| AS13612US | SYSMEX - Sysmex | 1K | — | 1 |
| AS27465US | WIFINITY-ASN-01 - Net Vision Communications, LLC | 1K | — | 3 |
| AS10974US | AS-10974 - Member Driven Technologies | 1K | — | 1 |
| AS29874US | CAMBRI-AS1 - Cambridge Associates | 1K | — | 4 |
| AS398557US | SDS-WIRELESS-INC - SDS Wireless, Inc. | 1K | — | 1 |
| AS400492US | DP-NET-ASN-01 - DataPerk, LLC | 1K | — | 3 |
| AS401332US | TRIPLEBIT - Triplebit | 1K | 131 | 8 |
| AS6103US | MTW-ASN - The Manitowoc Company Inc | 1K | — | 4 |
| AS36480US | BITRISE - Bitrise | 1K | — | 4 |
| AS400156US | FIBERFLY - fiberfly | 1K | — | 4 |
| AS15324US | BARRACUDA-NETWORKS-INC - Barracuda Networks, Inc. | 1K | — | 4 |
| AS11733US | EJGALLO - E. & J. Gallo Winery Inc. | 1K | — | 1 |
| AS393630US | AVANTGUARD - Avantguard Monitoring Centers | 1K | — | 4 |
| AS22466US | WALLOWA-VALLEY-NETWORKS-LLC - Wallowa Valley Networks, LLC | 1K | — | 1 |
| AS401814US | WPP-ET-CAMPUS-SAOPAULO - The Ogilvy Group, LLC | 1K | — | 3 |
| AS19834US | CNVR-ORD - Conversant, LLC | 1K | 52 | 7 |
| AS13892US | BIPERFORMANCE-ASN - BI | 1K | — | 4 |
| AS33506US | CPINETWORKS-AS - COMMPUTERCATIONS | 1K | — | 1 |
| AS25822US | TU-ASN-01 - Tiffin University | 1K | — | 4 |
| AS14389US | CASHEXPRESS - Cash Express, LLC | 1K | — | 1 |