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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 | 23,999 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,154 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 231 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,882 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,990 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,318 |
| REALPAGE-INC - Real Page, Inc. |
| 3.3K |
| — |
| 11 |
| AS399440US | AS-HEARTLANDFIBER - Heartland Fiber, Inc. | 3.3K | — | 4 |
| AS13631US | CIG-AS - CITADEL ENTERPRISE AMERICAS LLC | 3.3K | 1 | 14 |
| AS395260US | FARMERSTELCOM - The Farmers Telephone Company Inc. | 3.3K | — | 12 |
| AS62798US | PBB-OPELIKA - Point Broadband Fiber Holding, LLC | 3.3K | — | 4 |
| AS399937US | UCMCLOUD - Cisco Webex LLC | 3.3K | — | 13 |
| AS393226US | INTERCONTINENTAL-EXCHANGE-MULTI-ISP-SITES - Intercontinental Exchange, Inc. | 3.3K | — | 13 |
| AS395251US | BHS-MT - Benefis Health System | 3.3K | — | 7 |
| AS395194US | SBL-NE-ASN - Stealth Broadband | 3.3K | 65.5K | 8 |
| AS46846US | DOE-HQ-COOP - U.S. Department of Energy | 3.3K | 3.3K | 35 |
| AS16409US | PBW-COMMUNICATIONS - PBW Communications, LLC | 3.3K | 65.5K | 4 |
| AS20029US | HCDL-DENVER-DATA-CENTER - H5 Data Centers | 3.3K | 4.1K | 14 |
| AS395712US | MPUA-MILINK - Milan Public Utilities Authority | 3.3K | 65.5K | 10 |
| AS40138US | MDNET - Mach Dilemma, LLC | 3.3K | 42 | 50 |
| AS395650US | BEAON-PUB01 - Carelon Behavioral Health, Inc. | 3.3K | — | 6 |
| AS19124US | ASCENSION-WHEATON - Ascension Technologies | 3.3K | — | 13 |
| AS8254US | ROUTE95 GREEN FLOID LLC | 3.3K | 196.6K | 16 |
| AS21646US | FISHER - Fisher Investments Inc. | 3.3K | — | 13 |
| AS22295US | ADVIN - Advin Services LLC | 3.3K | 4.1K | 21 |
| AS33052US | VZUNET - Verizon Business | 3.3K | 1 | 5 |
| AS31843US | ARXWEB - Arx Technologies | 3.3K | 4.1K | 5 |
| AS395215US | SAN-JOAQUIN-COUNTY - San Joaquin County | 3.3K | — | 5 |
| AS36738US | AS-NVA1-1 - Athenahealth | 3.3K | — | 7 |
| AS8126US | CLOUDFABRIC - Cloud Fabric, Inc. | 3.3K | — | 4 |
| AS396350US | BOOMCOMMUNICATIONS-US - Boom Communications | 3.3K | 4.1K | 9 |
| AS14239US | RICH-PRODUCTS - Rich Products Corporation | 3.3K | — | 5 |
| AS397666US | HOSTROUND-LLC - HostRound LLC | 3.3K | 4.1K | 29 |
| AS36724US | HCAS-3 - Hanson Communications, Inc. | 3.3K | — | 5 |
| AS33395US | RMM-SOLUTIONS-AS - RMM Solutions Inc | 3.3K | — | 12 |
| AS29828US | ANIXTER-INC - ANIXTER INC. | 3.3K | — | 6 |
| AS55192US | TEKNET-WISP - teknet | 3.3K | — | 13 |
| AS25648US | PARALLAXSYSTEMS - Parallax Systems | 3.3K | — | 3 |
| AS23302US | STC - South Texas College | 3.3K | — | 3 |
| AS31880US | AS31880 - Nestle USA | 3.3K | — | 11 |
| AS1261US | NATINST-AS-AS - National Instruments Corporation | 3.3K | — | 10 |
| AS54876US | ROKABEAR - ROKABEAR LLC | 3.3K | — | 3 |
| AS46379US | SIENA-COLLEGE - Siena University | 3.3K | — | 3 |
| AS399759US | UBER-WIRELESS-LLP - Uber Wireless LLP | 3.3K | — | 13 |
| AS29766US | CHSPSC-29766 - CHSPSC, LLC | 3.3K | — | 10 |
| AS21891US | BUGGS-NET - Buggs Island Telephone Cooperative | 3.3K | — | 3 |
| AS394492US | USEI - US Electrodynamics, Inc. | 3.3K | — | 13 |
| AS1002US | BYTEFILTER-AS - Bytefilter LLC | 3.3K | — | 10 |
| AS397449US | HAYWIRE-ASN-01 - Haywire | 3.3K | 82K | 10 |
| AS12075US | JACOBS - Jacobs Engineering Group Inc. | 3.3K | — | 12 |
| AS398699US | WCCE - Cisco Systems Inc | 3.3K | — | 13 |
| AS11167US | GOGO - Gogo Business Aviation LLC | 3.3K | — | 5 |
| AS3423US | ATTIS-ASN3423 - AT&T Enterprises, LLC | 3.3K | 65.5K | 13 |