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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 21,015 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,222 |
| 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 | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,584 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,935 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,561 |
| 13.3K |
| — |
| 14 |
| AS395337US | MACST-VEGAS - MacStadium, Inc. | 13.3K | 8.2K | 10 |
| AS11767US | QTS-MIA - Quality Technology Services, LLC | 13.3K | 65.5K | 10 |
| AS5842US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 13.3K | — | 10 |
| AS33136US | OZARK-FIBER - Ozark Fiber, LLC | 13.3K | — | 19 |
| AS29979US | PWN-ASBLK - Pioneer Broadband | 13.3K | — | 4 |
| AS30217US | DESYNC - Desync Networks | 13.3K | 4 | 10 |
| AS15313US | PMTL-AS1 - Pembroke Telephone Company, Inc. | 13.3K | — | 13 |
| AS18883US | FIBERNET-NETWORK-OPERATIONS-CENTER - FiberNet Communications L.C. | 13.3K | 65.5K | 42 |
| AS11942US | IPGLOBAL - IP Global, LLC. | 13.3K | 65.5K | 8 |
| AS60558US | SECUREDSERVERS-EU PHOENIX NAP, LLC. | 13.3K | 259 | 30 |
| AS15175US | ACC-1 - Advanced Cabling and Communications | 13.3K | — | 8 |
| AS54075US | ARBUCKLE-COMMUNICATIONS - Arbuckle Communications, LLC | 13.3K | — | 52 |
| AS11168US | SCC - SMART CHOICE COMMUNICATIONS, LLC | 13.3K | — | 20 |
| AS20205US | AMPLEX - Amplex Electric, Inc. | 13.3K | 65.5K | 10 |
| AS7165US | EQUITABLE HOLDINGS-ASN - Equitable Holdings, Inc | 13.3K | — | 22 |
| AS22070US | TF-BRI - Blue Ridge Websoft, LLC | 13.3K | 65.5K | 8 |
| AS10685US | ASA5COM - A5.COM | 13.3K | — | 6 |
| AS3145US | RFT-AS - Refinitiv US LLC | 13.1K | — | 18 |
| AS6954US | NACS-AS6954 - New Age Consulting Service, Inc. | 13.1K | — | 5 |
| AS396028US | VIDANTHEALTH - Vidant Health | 13.1K | — | 10 |
| AS61138US | ZAPPIE-HOST-AS Zappie Host LLC | 13.1K | 200.8K | 118 |
| AS31996US | ZOOMTC - Zoom Telcom, LLC | 13.1K | — | 33 |
| AS16410US | DKM3-ARIN - The Reynolds and Reynolds Company | 13.1K | — | 45 |
| AS22575US | MASSMUTUAL2 - Massachusetts Mutual Life Insurance Company | 13.1K | — | 5 |
| AS14446US | CNT-ASN - Central Newspapers Technologies Inc. | 13.1K | — | 5 |
| AS398576US | PCBPRTLND - Premium Choice Broadband | 13.1K | — | 32 |
| AS25840US | CASCADE-ACCESS-LLC-CA-ESTOR1 - Cascade Access, LLC | 13.1K | — | 13 |
| AS53366US | TILLLMAN-FIBER-CO - TILLMAN FIBERCO, LLC | 13.1K | 2.6K | 30 |
| AS20128US | IN2 - iN2 LLC | 13.1K | 131.1K | 12 |
| AS26241US | 3ZNET-CVG001 - 3z.net | 13.1K | — | 18 |
| AS36776US | FIVE9 - Five9 Inc. | 13.1K | — | 43 |
| AS21541US | 101NETLINK - 101Netlink | 13.1K | — | 19 |
| AS7016US | CCCH-3 - Comcast Cable Communications, LLC | 13.1K | 225 | 262 |
| AS400956US | OPENMETAL-AS - OpenMetal, Inc. | 13.1K | 8.2K | 24 |
| AS26397US | OPTIPUTER - The Regents of the University of California - University of California, San Diego. | 13.1K | — | 4 |
| AS15320US | PRIMELINK - FirstLight Fiber, Inc. | 13.1K | — | 5 |
| AS29696US | ECARTHAGE - Carthage Water and Electric | 12.8K | — | 28 |
| AS40715US | COLOGIX-COL - Cologix, Inc | 12.8K | 65.5K | 11 |
| AS17200US | SEATTLECOLL - Seattle Community College District | 12.8K | — | 5 |
| AS30059US | ZIMCOM - Zimcom Network Solutions Inc. | 12.8K | — | 16 |
| AS40009US | BITGRAVITY - BitGravity, Inc. | 12.8K | 27 | 70 |
| AS36100US | MTC-BROADBAND - MTC Broadband, Inc. | 12.8K | — | 24 |
| AS398052US | MECHANICSVILLE - Mechanicsville Telephone Company | 12.8K | 65.5K | 25 |
| AS46437US | FOURWAY - Fourway Computer Products, Inc. | 12.8K | 1M | 13 |
| AS25766US | LIGHTSPAR - LightSpar LLC | 12.8K | — | 4 |
| AS19746US | MMU-FIBER - Marshall Municipal Utilities | 12.8K | — | 25 |