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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 | 24,358 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 4,342 |
| 832 |
| — |
| 4 |
| AS23435US | PHP-14-AS - Premier Health Partners | 800 | — | 3 |
| AS39984US | STARZENTERTAINMENT - Starz Entertainment Group LLC | 800 | — | 4 |
| AS25819US | COLLIER-TECHNOLOGIES-LLC - Collier Technologies LLC | 792 | 257 | 12 |
| AS30196US | CAPSCENTERS - CAPS | 768 | — | 3 |
| AS25992US | LVMPD - Las Vegas Metropolitan Police Department | 768 | — | 3 |
| AS40268US | ICON-INTERNET - ICON Internet, LLC | 768 | 8.2K | 5 |
| AS63345US | DKM1-ARIN - The Reynolds and Reynolds Company | 768 | — | 3 |
| AS46354US | QUANTHOUSE-US - QuantHouse Inc | 768 | — | 3 |
| AS19186US | GMCHOSTING-01 - GMCHOSTING LLC | 768 | — | 3 |
| AS397721US | APOG-UNO - Apogee Telecom Inc. | 768 | — | 2 |
| AS23095US | SHARP - SHARP HealthCare | 768 | — | 3 |
| AS10379US | DELUXE - Deluxe Corporation | 768 | — | 3 |
| AS219474US | GRAV-AS GravHosting LLC | 768 | 1.3K | 5 |
| AS13464US | CPLP-ASN - Centerbridge Partners, L.P. | 768 | — | 3 |
| AS26686US | RCL-262-26686 - RedBaron Consulting, LLC | 768 | — | 2 |
| AS31816US | NMDP - National Marrow Donor Program | 768 | — | 3 |
| AS209006US | WEBAIR-INTERNET-FRANCE WEBAIR INTERNET DEVELOPMENT COMPANY LLC | 768 | — | 2 |
| AS7741US | CIBC-WORLD-MARKETS - CIBC World Markets | 768 | — | 3 |
| AS1072US | PAYWARD-ASN-01 - Payward, Inc. | 768 | — | 3 |
| AS14729US | THRIVE-SE1 - Thrive Operations, LLC | 768 | — | 2 |
| AS12082US | NWN-CORPORATION - NWN Corporation | 768 | — | 3 |
| AS32203US | TLC-126-32203 - Thornton Labs Inc. | 768 | — | 3 |
| AS14360US | AS14360 - Alvarez & Marsal Holdings, LLC | 768 | — | 3 |
| AS398960US | CRYOFLESH - Cryoflesh Inc | 768 | 2 | 5 |
| AS13955US | ECHO-UPLINKDATA-COM - Echostar Broadcasting Corporation | 768 | — | 3 |
| AS395926US | IISD-DC-01 - Ingham ISD | 768 | — | 2 |
| AS26096US | LODDEN - Lodden Services | 768 | — | 3 |
| AS45008US | Amex-EMEA American Express Travel Related Services Company, Inc | 768 | — | 3 |
| AS398382US | ABV-WC - AbbVie, Inc. | 768 | — | 3 |
| AS399103US | SPRY-WIRELESS-02 - Spry Wireless Communications Inc | 768 | — | 2 |
| AS31759US | LARABIDA - La Rabida Hospital | 768 | — | 3 |
| AS395030US | TLC - The Lamar Company, LLC | 768 | — | 3 |
| AS54565US | SMART-CITY-KCCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 768 | — | 2 |
| AS55080US | EMERGE212 - Emerge212 | 768 | — | 3 |
| AS40390US | WYNDHAMWW-PHX-2 - Wyndham Worldwide Corporation | 768 | — | 2 |
| AS397757US | BACKROADS-BROADBAND - Backroads Broadband | 768 | — | 2 |
| AS32268US | ARTISAN-PARTNERS-ASN - Artisan Partners Limited Partnership | 768 | — | 3 |
| AS1004US | AMBYRE - Ambyre LLC | 768 | 524.3K | 7 |
| AS399034US | ASN-ENFOTECH-01 - enfoTech & Consulting Inc. | 768 | — | 3 |
| AS396173US | SWA-W11-MKT-INET - Southwest Airlines Co. | 768 | — | 3 |
| AS25855US | ETS-TELCO - ETS TELECOM | 768 | — | 2 |
| AS55059US | MPP - Microwave Power Products, Inc. | 768 | — | 2 |
| AS33426US | PEOPLEFLUENT-NETDIMENSIONS-INC - PeopleFluent | 768 | — | 3 |
| AS26885US | QCC-IDC-ASN - Kaplan Higher Education Corporation | 768 | — | 3 |
| AS394815US | CSW - Cinch Software, LLC | 768 | — | 3 |
| AS26028US | PANDUIT - Panduit Corp. | 768 | — | 3 |