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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| — |
| — |
| 0 |
| AS33215US | OVATI-10 - Ovation Travel Group, Inc. | — | — | 0 |
| AS36017US | CESL-21-ASN-36017 - Claro Enterprise Solutions, LLC | — | — | 0 |
| AS33528US | AS33528 - Essendant Co. | — | — | 0 |
| AS33479US | CEENTA - Charlotte Eye, Ear, Nose and Throat Associates, P.A. | — | — | 0 |
| AS27098US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS398877US | RCO-ARIN-01 - REAL CLOUD ONE LLC | — | — | 0 |
| AS26678US | ASN-QMFI - QUINCY MUTUAL FIRE INSURANCE, CO. | — | — | 0 |
| AS26560US | JUNIATA - Juniata College | — | — | 0 |
| AS31953US | HUL-44-31953 - Halajot USA LLC | — | — | 0 |
| AS26186US | BIDMC-1 - Beth Israel Deaconess Medical Center | — | — | 0 |
| AS23390US | BROADPATH-DC-TWO - BROADPATH, LLC | — | — | 0 |
| AS23385US | PCPL-ASN - P2 Capital Parnters LLC | — | — | 0 |
| AS30397US | CITY-OF-DALLAS-ASN - City of Dallas | — | — | 0 |
| AS23485US | SEI-LLC-AS-NUM - SEI LLC | — | — | 0 |
| AS29877US | STS-TELECOM-AS-1 - Windstream Communications LLC | — | — | 0 |
| AS29812US | ONEZERO - One Zero Hosting Inc. | — | — | 0 |
| AS27603US | SPIRITAIR - Spirit Airlines, Inc. | — | — | 0 |
| AS29704US | PTSY - Power & Telephone Supply Company | — | — | 0 |
| AS27290US | DISCRETE-TECH-SVCS - Discrete LLC | — | — | 0 |
| AS27272US | Q9-AS-CAL3 - Equinix, Inc. | — | — | 0 |
| AS53921US | TTCLA - The Telephone Connection of Los Angeles, Inc. | — | — | 0 |
| AS399431US | AMCN-CORP-AS-BTHPNY - Rainbow Media Holdings LLC | — | — | 0 |
| AS401769US | TPM - TRINITY PETROLEUM MANAGEMENT, LLC | — | — | 0 |
| AS401464US | ASVA-NET-01 - ASVA NETWORKS LLC | — | — | 0 |
| AS395445US | DODGE-COUNTY-WI - Dodge County | — | — | 0 |
| AS398133US | DMEA - DMEA | — | — | 0 |
| AS397902US | CIEN-ASN-01 - Ciena Corporation | — | — | 0 |
| AS397629US | CLOUD-9-SOLUTIONS - Cloud 9 Solutions | — | — | 0 |
| AS397673US | AHELIOTECH - AHELIOTECH | — | — | 0 |
| AS397310US | NGN-CONNECT - Point Broadband Fiber Holding, LLC | — | — | 0 |
| AS397286US | YWT-ASN-01 - Yourway Transport Inc. | — | — | 0 |
| AS397047US | EM-PRIMARY-ASN1 - EMMA, Inc | — | — | 0 |
| AS397539US | LOOPCAP-01 - Loop Capital LLC | — | — | 0 |
| AS399446US | THEWORLDIX-ASN-1 - TheWorldIX | — | — | 0 |
| AS40917US | AUTOTASK-CORPORATION - Autotask Corporation | — | — | 0 |
| AS399072US | AL-PROD-03 - AppLovin Corporation | — | — | 0 |
| AS399202US | VIPER-ASN01 - Vasuki Systems Inc | — | — | 0 |
| AS398859US | KIWI-IPTV - KIWISAT | — | — | 0 |
| AS398851US | AMEX-TRAN-ASH - American Express Company | — | — | 0 |
| AS398525US | DNIC-ASBLK-4BYTE - United States Department of Defense (DoD) | — | — | 0 |
| AS396779US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS33034US | SITE-SAFE-AS-1 - Crown Castle USA | — | — | 0 |
| AS33013US | AICPA - American Institute of Certified Public Accountants | — | — | 0 |
| AS32975US | THOMSON-REUTERS - Thomson Reuters Holdings Inc | — | — | 0 |
| AS33005US | ELTOPIA - Eltopia Communications, LLC | — | — | 0 |
| AS31961US | IDC-WEB - International Data Corporation | — | — | 0 |