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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,162 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,670 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,950 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| 256 |
| 256 |
| 2 |
| AS22042US | FLOWUSLLC - Flow Traders US LLC | 256 | — | 1 |
| AS398990US | JAA-ASN-26 - JACKSONVILLE AVIATION AUTHORITY | 256 | — | 1 |
| AS19121US | BLATTNER-HOLDING-COMPANY - Blattner Company | 256 | — | 1 |
| AS29798US | AS29798 - TenSpire Network | 256 | — | 1 |
| AS393470US | BLACKLIST - Mocan Media LLC | 256 | — | 1 |
| AS22810US | BROOKS-AUTOMATION - Brooks Automation Inc. | 256 | — | 1 |
| AS62503US | NPGCO-KRDO - News-Press & Gazette Company | 256 | — | 1 |
| AS399592US | IGO-TECHNOLOGY - iGo Technology, Inc. | 256 | — | 1 |
| AS25615US | BBV - Broadband Visions, LLC | 256 | — | 1 |
| AS399812US | LAER-AS-SIN1 - UnitedLayer, LLC | 256 | 1 | 2 |
| AS126US | DNIC-AS-00126 - United States Department of Defense (DoD) | 256 | — | 1 |
| AS26660US | CLAYCO - Clayco, Inc. | 256 | — | 1 |
| AS209864US | NAIVE-NETWORK Zhaofeng Li | 256 | 7 | 8 |
| AS54024US | CFA-INSTITUTE - CFA Institute | 256 | — | 1 |
| AS397978US | AS-S3RDVL - SOUTH 3RD VENTURES, LLC | 256 | 65.5K | 2 |
| AS399708US | NCWC-ARIN-ASN - North Carolina Wesleyan College | 256 | — | 1 |
| AS397796US | GRMC-SC1 - Gila Regional Medical Center | 256 | — | 1 |
| AS23301US | WISC-INVESTMENT-BOARD - State of Wisconsin Investment Board | 256 | — | 1 |
| AS26868US | NCTA-WASHINGTONDC - NCTA - The Internet & Television Association | 256 | 1 | 2 |
| AS19669US | SCS - Steel City Signal | 256 | — | 1 |
| AS394804US | JOERENDELL - Joerendell LLC | 256 | — | 1 |
| AS54724US | GAITHERSBURGMDGOV - City of Gaithersburg | 256 | — | 1 |
| AS393795US | PTCT - PTC Therapeutics, Inc | 256 | — | 1 |
| AS26657US | NEUROPACE-CORPORATE-SITE - Neuropace | 256 | — | 1 |
| AS39947US | TMGHEALTH - TMG Health, Inc | 256 | — | 1 |
| AS12071US | NATIONWIDECPAS-LLC - Nationwide CPAs LLC | 256 | — | 1 |
| AS40781US | WINT-PHILLY - Wintsec Technologies, LLC | 256 | — | 1 |
| AS40302US | SPOTSYLVANIA-COUNTY - Spotsylvania County Government | 256 | — | 1 |
| AS53327US | CO-OPERATIVE-INSURANCE-COMPANIES - Co-operative Insurance Companies, inc. | 256 | — | 1 |
| AS30331US | ST-VINCENT - St. Vincent Hospital | 256 | — | 1 |
| AS16400US | WAVELENGTH - Wavelength LLC | 256 | 65.5K | 2 |
| AS16915US | MINNESOTATWINSLLC - Minnesota Twins, LLC | 256 | — | 1 |
| AS32171US | TRIAN-FUND-MANAGEMENT-LP - Trian Fund Management L.P. | 256 | — | 1 |
| AS22917US | OFWL-AS - Olshan | 256 | — | 1 |
| AS11074US | CROWNCASTLE-AS11074 - Crown Castle Fiber LLC | 256 | — | 1 |
| AS53643US | MCUSDN-INET - Manteno Community Unit School District 5 | 256 | — | 1 |
| AS397627US | CLOUDCONNECT - CloudConnect, LLC | 256 | — | 1 |
| AS18639US | ABTASSOCIATES-AS - Abt Associates, Inc. | 256 | — | 1 |
| AS46727US | FES - FES | 256 | — | 1 |
| AS401345US | ERNESTECH-ASN-01 - ErnesTech LLC | 256 | — | 1 |
| AS27389US | MANSFIELDISD - Mansfield Independent School District | 256 | — | 1 |
| AS397442US | STSL - Strategic Technology Solutions, LLC | 256 | — | 1 |
| AS16790US | TNBCI-TRANSNATIONAL-BANK-CARD - TransNational Bank Card | 256 | — | 1 |
| AS394518US | CHSD230 - Consolidated High School District 230 | 256 | — | 1 |
| AS21610US | SAP-SE-YVR - SAP America Inc. | 256 | — | 1 |
| AS22977US | LIT-BMT - Lamar Institute of Technology | 256 | — | 1 |