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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,749 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,226 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,282 |
| 12.8K |
| — |
| 4 |
| AS16410US | DKM3-ARIN - The Reynolds and Reynolds Company | 12.8K | — | 44 |
| AS27021US | AS-DGX - Quest Diagnostics, Inc. | 12.8K | — | 17 |
| AS22504US | LORETTOCOMM - LORETTO COMMUNICATION SERVICES, INC. | 12.8K | — | 14 |
| AS31966US | CSAA-INSURANCE-EXCHANGE - CSAA Insurance Exchange | 12.8K | — | 13 |
| AS20042US | GRAYSON-COLLIN-COMMUNICATIONS - Cutter Communications, Inc. | 12.8K | 65.5K | 11 |
| AS53366US | TILLLMAN-FIBER-CO - TILLMAN FIBERCO, LLC | 12.8K | 4.8K | 36 |
| AS2615US | BECHTEL - Bechtel Corporation | 12.8K | — | 45 |
| AS10538US | FWB-ALASKA-1 - TelAlaska | 12.8K | — | 4 |
| AS25612US | DSL-EXPRESS - DSL EXPRESS | 12.8K | — | 4 |
| AS30059US | ZIMCOM - Zimcom Network Solutions Inc. | 12.8K | — | 16 |
| AS4514US | PVSCHOOLS-ASN-01 - Paradise Valley Unified School District | 12.8K | — | 3 |
| AS393946US | INTERSIL-SEMI - Renesas Electronics America Inc. | 12.8K | — | 20 |
| AS46437US | FOURWAY - Fourway Computer Products, Inc. | 12.8K | 1M | 13 |
| AS19746US | MMU-FIBER - Marshall Municipal Utilities | 12.8K | — | 25 |
| AS40009US | BITGRAVITY - BitGravity, Inc. | 12.8K | 27 | 70 |
| AS16578US | DATANOC - Lanset America Corporation | 12.8K | 4 | 54 |
| AS25766US | LIGHTSPAR - LightSpar LLC | 12.8K | — | 4 |
| AS17200US | SEATTLECOLL - Seattle Community College District | 12.8K | — | 5 |
| AS29696US | ECARTHAGE - Carthage Water and Electric | 12.8K | — | 28 |
| AS400164US | RIPPLEFIBER-ASN-01 - Ripple Fiber Inc. | 12.8K | 12K | 80 |
| AS206766US | PROXYWING Travchis LLC | 13.1K | — | 38 |
| AS395839US | HOSTKEY-USA - HOSTKEY | 13.1K | 65.5K | 52 |
| AS63178US | MPRTC-ISP - Mid-Plains Rural Telephone Cooperative, Inc. | 13.1K | — | 27 |
| AS6954US | NACS-AS6954 - New Age Consulting Service, Inc. | 13.1K | — | 5 |
| AS20128US | IN2 - iN2 LLC | 13.1K | 131.1K | 12 |
| AS397422US | MINET01 - MINET | 13.1K | — | 30 |
| AS400536US | NODESTOP-LLC - Nodestop LLC | 13.1K | — | 51 |
| AS36776US | FIVE9 - Five9 Inc. | 13.1K | — | 43 |
| AS26857US | TRUSTCOMM-AS - TrustComm, Inc. | 13.1K | — | 19 |
| AS398052US | MECHANICSVILLE - Mechanicsville Telephone Company | 13.1K | 65.5K | 26 |
| AS26241US | 3ZNET-CVG001 - 3z.net | 13.1K | — | 18 |
| AS53423US | BRAZOSWIFI - Brazos WiFi | 13.1K | — | 14 |
| AS31996US | ZOOMTC - Zoom Telcom, LLC | 13.1K | — | 33 |
| AS398774US | CUP-3 - Pennsylvania Western University | 13.1K | — | 4 |
| AS15320US | PRIMELINK - FirstLight Fiber, Inc. | 13.1K | — | 5 |
| AS3145US | RFT-AS - Refinitiv US LLC | 13.1K | — | 18 |
| AS396028US | VIDANTHEALTH - Vidant Health | 13.1K | — | 10 |
| AS22575US | MASSMUTUAL2 - Massachusetts Mutual Life Insurance Company | 13.1K | — | 5 |
| AS26397US | OPTIPUTER - The Regents of the University of California - University of California, San Diego. | 13.1K | — | 4 |
| AS21541US | 101NETLINK - 101Netlink | 13.1K | — | 19 |
| AS7016US | CCCH-3 - Comcast Cable Communications, LLC | 13.1K | 218 | 255 |
| AS21960US | SSS-LLC - SafeSoft Solutions, Inc. | 13.3K | — | 14 |
| AS15313US | PMTL-AS1 - Pembroke Telephone Company, Inc. | 13.3K | — | 13 |
| AS399575US | BEACON-BROADBAND - Beacon Broadband, Inc. | 13.3K | — | 5 |
| AS19754US | FNL-33-19754 - The Fusion Network, LLC | 13.3K | 65.5K | 48 |
| AS15175US | ACC-1 - Advanced Cabling and Communications | 13.3K | — | 8 |