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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 | 21,129 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,664 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,947 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,375 |
| 1K |
| 4 |
| 5 |
| AS12102US | CITY-OF-PORTLAND-OR-USA - City of Portland | 1K | — | 1 |
| AS53981US | TEXTPLUS-AS - TEXTPLUS, INC. | 1K | 4.1K | 2 |
| AS36644US | FVOICE-001 - 4Voice LLC | 1K | — | 4 |
| AS29207US | SHIRE-UK-AS Takeda Pharmaceuticals U.S.A., Inc. | 1K | — | 4 |
| AS400525US | AM-PRODNET-01 - Audible Magic | 1K | — | 3 |
| AS29832US | METTLER-TOLEDO-AM-NOC-ASN - Mettler-Toledo LLC | 1K | — | 1 |
| AS4912US | CENTIER - CENTIER BANK | 1K | — | 1 |
| AS399998US | TRUCKEE-MEADOWS-INTERNET - CENOS NETWORKS, LLC | 1K | — | 4 |
| AS27358US | TRUSTMARK-INSURANCE-INTERNET - TRUSTMARK INSURANCE CO. | 1K | — | 4 |
| AS18783US | RDSEC-NET-01 - RD Sec LLC | 1K | 4.1K | 4 |
| AS400406US | KMB2 - Kimberly-Clark Corporation | 1K | — | 3 |
| AS22871US | HHSF-IN - Heartland Rural Electric Membership Corporation | 1K | — | 4 |
| AS394755US | CRHSC - City of Rock Hill SC | 1K | — | 4 |
| AS63386US | THEGEO-NET - The Greater Eastern Oregon Network, LLC | 1K | 4.1K | 4 |
| AS16610US | BLUEBIRD-WIRELESS - Bluebird Wireless Broadband Services, L.L.C. | 1K | — | 4 |
| AS401618US | AVISBUDGETGROUP - Avis Budget Group, Inc | 1K | — | 2 |
| AS12272US | MEDATA-PROD-AS - Medata Inc. | 1K | — | 4 |
| AS400156US | FIBERFLY - fiberfly | 1K | — | 4 |
| AS62576US | S-MOBILE-24 - S-Mobile LLC | 1K | — | 4 |
| AS54776US | WEST-ESSEX - West Essex Regional School District | 1K | — | 4 |
| AS62508US | GLOBAL-US - GlobalLogic Inc. | 1K | — | 3 |
| AS63136US | SIPRADIUS - SipRadius | 1K | — | 4 |
| AS395526US | REGALBELOIT-WAUSAU - Regal Rexnord Corporation | 1K | — | 4 |
| AS401999US | PUBLIC-SAFETY-NET-EXCG - Fairfax County NCR | 1K | — | 4 |
| AS32991US | SPECUSA-AS - Spectrum Software Solutions Inc. | 1K | — | 4 |
| AS20430US | AXCESS-FINANCIAL - Axcess Financial Services, Inc. | 1K | — | 1 |
| AS398947US | CABLECOLOR-MIA-01 - CABLE COLOR LLC | 1K | — | 1 |
| AS11980US | BDO-USA-LLP - BDO USA | 1K | — | 2 |
| AS54963US | LUMENET - Lume Technologies Inc. | 1K | — | 2 |
| AS23368US | DATAONE - DATA ONE SYSTEMS, INC. | 1K | 4.1K | 5 |
| AS33539US | ISP-MANAGEMENT - ISP Management, Inc. | 1K | — | 4 |
| AS393415US | LITTNET - LITTLER MENDELSON, P.C. | 1K | — | 4 |
| AS397613US | NTS - Network Technology Solutions, LLC | 1K | — | 2 |
| AS62296US | vitalng Vital Network Group, LLC | 1K | 196.6K | 7 |
| AS32955US | TAMUT-MAIN - Texas A&M University-Texarkana | 1K | — | 1 |
| AS32488US | COMPASSMSP - CompassMSP, LLC. | 1K | — | 4 |
| AS395151US | HEADLANDS-AS - Headlands Technologies LLC | 1K | — | 4 |
| AS53293US | BGP-SAS-01 - Samsung Austin Semiconductor LLC | 1K | — | 4 |
| AS401043US | MJFVENTURES - MJF Ventures LLC | 1K | — | 3 |
| AS29874US | CAMBRI-AS1 - Cambridge Associates | 1K | — | 4 |
| AS400046US | ZINUS-US - Zinus Inc | 1K | — | 4 |
| AS30067US | AACG-AS - Anne Arundel County, Maryland | 1K | — | 4 |
| AS63398US | TWINRIVERS-USD - Twin Rivers Unified School District | 1K | — | 3 |
| AS394088US | SCIENCEDMZ - Agriculture Research Service | 1K | — | 3 |
| AS153595US | CITIGROUPINC-AS-AP - Citigroup Inc. | 1K | — | 4 |
| AS20284US | INETUASN1 - Flexential iNETu Corp. | 1K | — | 3 |