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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 512 |
| — |
| 2 |
| AS395971US | QUESTSOFTWARE - Quest Software Inc | 512 | — | 2 |
| AS63310US | AS-NABP - NABP | 512 | — | 1 |
| AS399330US | CASCADE-INET-01 - Cascade Corporation | 512 | — | 2 |
| AS399687US | DEFIN-AS - Def, Inc | 512 | — | 2 |
| AS54798US | ODDBYTES - Oddbytes LLC | 512 | — | 2 |
| AS27029US | SJE-INC - Primex | 512 | — | 2 |
| AS13744US | THP-BGP - TYNDALE HOUSE PUBLISHERS | 512 | — | 2 |
| AS39989US | WEBSTER-BANK - Webster Bank, National Association | 512 | — | 1 |
| AS11449US | INTERACTIVEBROKERS - Interactive Brokers LLC | 512 | — | 2 |
| AS399574US | RCCD-ASN - Riverside Community College District | 512 | — | 1 |
| AS393616US | ISS-GOVERNANCE - ISS Governance | 512 | — | 2 |
| AS53533US | ENTRA-3 - Entravision Communications Corporation | 512 | — | 2 |
| AS46259US | CTDN-AS - Donor Network West | 512 | — | 2 |
| AS401896US | MISIU-USA - MISIU LLC | 512 | 257 | 4 |
| AS6006US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 512 | — | 2 |
| AS18758US | ADRECOM - Adrecom | 512 | — | 2 |
| AS393414US | KIRKLAND-ELLIS-UK - Kirkland & Ellis LLP | 512 | — | 2 |
| AS50389US | PHOENIXNAP-DE PHOENIX NAP, LLC. | 512 | 2 | 4 |
| AS16784US | INETZ - Inetz Media Group | 512 | — | 1 |
| AS36023US | SIRIUSSATELLITERADIO - SIRIUS SATELLITE RADIO | 512 | — | 1 |
| AS398076US | OVERTURE-LIFE - Overture Life, Inc. | 512 | 11 | 12 |
| AS398154US | ASCOTFL - City of Tallahassee | 512 | — | 2 |
| AS16769US | AS16769 - Sotheby's Inc. | 512 | — | 2 |
| AS26246US | CNHIN-NAFTA - CNH INDUSTRIAL AMERICA LLC | 512 | — | 2 |
| AS46381US | E-INS-NET - E-INS, LLC | 512 | — | 2 |
| AS12238US | AECOM - AECOM | 512 | — | 1 |
| AS11145US | VRIS-11145-11149 - Verizon Business | 512 | — | 1 |
| AS394819US | NOST-EAST - NNSA Office Of Secure Transportation | 512 | — | 2 |
| AS27279US | ASCENSION-MDBAL - Ascension Technologies | 512 | — | 2 |
| AS19845US | PEABODY-COAL-ASN - Peabody Holding Company, LLC | 512 | — | 2 |
| AS53333US | ADISTEC-MIA-TMXO - Adistec Corp | 512 | — | 2 |
| AS14718US | LENEXA-DR - NATIONAL INDEMNITY COMPANY | 512 | — | 1 |
| AS213550US | JONRADEL Jon Radel | 512 | 3 | 5 |
| AS19511US | ELECTROLUX-NA - Electrolux Home Products, Inc. | 512 | — | 2 |
| AS397308US | EAB-ASN-EASTMAN-CHEMICAL - Eastman Chemical Company | 512 | — | 2 |
| AS400086US | OUHBGPAS1 - OU Medicine, Inc. | 512 | — | 1 |
| AS401729US | CS-ASN1 - CrossSignal, LLC | 512 | — | 2 |
| AS399187US | COB-MN-US - City of Bloomington | 512 | — | 2 |
| AS63468US | INFINITTNA - Infinitt North America, Inc. | 512 | — | 2 |
| AS23257US | IBMCCH-DAL-EQU - IBM | 512 | — | 2 |
| AS399452US | RPECEL - Rugged | 512 | — | 2 |
| AS46542US | AVIDTE - Avid Technology, Inc. | 512 | — | 2 |
| AS36095US | FSBANK-1-36095 - FIRST SECURITY BANK | 512 | — | 2 |
| AS40227US | IPNS-LAB - IP Networked Services Inc. | 512 | — | 2 |
| AS393798US | CPSHR-NET - Cooperative Personnel Services | 512 | — | 1 |
| AS402530US | FELWARE - Felware | 512 | 4.1K | 2 |