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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 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 | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 512 |
| — |
| 2 |
| AS19599US | COPYRIGHT - COPYRIGHT CLEARANCE CENTER | 512 | — | 2 |
| AS3921US | AGNOGE - General Electric Company | 512 | — | 2 |
| AS393853US | ICS - Digital Network Access Communications, INC | 512 | — | 1 |
| AS16905US | LEARN-RESEARCH - LEARN | 512 | 2 | 4 |
| AS3727US | SHRUBB - Shrubbery Networks | 512 | — | 1 |
| AS22228US | TOKYO-ELECTRON-US-HOLDINGS-INC - Tokyo Electron U.S. Holdings, Inc. | 512 | — | 2 |
| AS396211US | TCI-PLAINS01 - Triple Crown Internet, Inc. | 512 | — | 1 |
| AS36763US | WBBH - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS22874US | HIGH-DATA-CONNECTION - HIGH DATA CONNECTION LLC | 512 | — | 2 |
| AS402514US | CHRISTHOLM - Christholm | 512 | — | 2 |
| AS395452US | SFPS - SFPS | 512 | — | 2 |
| AS397259US | PIRATEL-LA1 - Piratel LLC | 512 | — | 2 |
| AS397691US | CGMUS - CompuGroup Medical Inc. | 512 | — | 2 |
| AS40056US | WGLV-20 - Westgate Resorts Ltd | 512 | — | 2 |
| AS399102US | WA-ST-SCHOOL-BLIND - Washington State School for the Blind | 512 | — | 2 |
| AS36769US | WGAL-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS30255US | NYGC - New York Genome Center, Inc. | 512 | — | 2 |
| AS13969US | PMM-INC-AS - PROFESSIONAL MEDICAL MANAGEMENT, INC. | 512 | — | 2 |
| AS401365US | SMF-ASN-01 - Saia Motor Freight Line, LLC | 512 | — | 2 |
| AS14460US | HORIZON - Horizon Media, Inc. | 512 | — | 2 |
| AS5022US | SSEMC - Snapping Shoals Electric Membership Corporation | 512 | — | 2 |
| AS397887US | HOSTMYCALLS-01 - HostMyCalls | 512 | — | 2 |
| AS22538US | IBM-CIOUS - IBM | 512 | — | 2 |
| AS27459US | AXOSBANK-AS - AXOS BANK | 512 | — | 2 |
| AS402106US | ACDEV - ACDev LLC | 512 | 258 | 5 |
| AS12096US | AMPNET-ASN - AMP Telephones | 512 | — | 2 |
| AS26334US | BAIN-WTR - Bain & Company | 512 | — | 2 |
| AS26158US | USG-TOR-AS - ULTIMATE SOFTWARE GROUP | 512 | — | 2 |
| AS23190US | AESPAC - AES Pacific Inc. | 512 | — | 2 |
| AS26998US | NFII-ASN - NFI Industries, Inc | 512 | — | 2 |
| AS40887US | TGNA-WZZM - TEGNA Inc. | 512 | — | 2 |
| AS26649US | GDCLSD-AS - General Dynamics Land Systems | 512 | — | 2 |
| AS16896US | NCN - NCN | 512 | — | 2 |
| AS35974US | QTS-EEM - Quality Technology Services, LLC | 512 | — | 2 |
| AS398188US | COUNTY-OF-PASSAIC - County of Passaic | 512 | — | 1 |
| AS395633US | WSU-EVT-AS - Washington State University | 512 | — | 2 |
| AS64288US | MASONITE - Masonite Corporation | 512 | — | 2 |
| AS400141US | PATTERSONVILLE-TELCO-OHIO - Pattersonville Telephone Co | 512 | — | 1 |
| AS994US | AS-VIIRTUE - Viirtue LLC | 512 | — | 2 |
| AS40875US | CEMIAMI - CheckAlt Eras Inc | 512 | — | 2 |
| AS54978US | ZYWAV-MKE-ASN - ZYWAVE INC | 512 | — | 2 |
| AS398015US | MICRO4ASN - MicroFour, Inc. | 512 | — | 2 |
| AS31955US | ASN-CONNEXUSENERGY - CONNEXUS ENERGY | 512 | — | 2 |
| AS398795US | TALLWIRELESS - RFPT COMPANY LLC | 512 | 50 | 7 |
| AS398009US | PRAIRIEHILLS - Prairie Hills Wireless LLC | 512 | — | 2 |
| AS21594US | IBSA - Interstate Battery System of America Inc. | 512 | — | 1 |