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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 | 21,022 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,223 |
| 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 | 3,586 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,933 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,550 |
| 8.4K |
| — |
| 2 |
| AS18460US | FHSU - Fort Hays State University | 8.4K | 64 | 3 |
| AS27597US | SITESERVER-IDC1 - Siteserver, Inc. | 8.4K | 65.5K | 3 |
| AS27556US | FRACRACKVCLOUD - Frac Rack LLC | 8.4K | — | 2 |
| AS202276US | ibossripe IBOSS, INC | 8.4K | 14 | 38 |
| AS400941US | NUBINITY - Nubinity, LLC | 8.4K | 2 | 9 |
| AS22911US | SINAP-TIX - SINAP-TIX, LLC | 8.4K | 77.8K | 17 |
| AS25892US | VERTEX - VTX Telecom | 8.4K | 131.1K | 20 |
| AS30182US | ZION-ASN1 - ZION BROADBAND INC | 8.4K | — | 16 |
| AS40248US | CSL0-AS - County of San Luis Obispo | 8.4K | — | 2 |
| AS27555US | BV-PUBLIC-ASN - Black & Veatch International Company | 8.4K | — | 16 |
| AS19812US | RADIANZ-NUTLEY - BT Americas, Inc | 8.4K | — | 18 |
| AS3364US | CSDCO-AS - Computer Systems Design Company | 8.4K | — | 4 |
| AS21577US | TOLEDOTELNET - TOLEDO TELEPHONE CO INC | 8.4K | 65.5K | 5 |
| AS31769US | GIGSTREEM-NYC - GiGstreem | 8.4K | 256 | 15 |
| AS30154US | DAVEN - Davenport University | 8.4K | 1 | 3 |
| AS23546US | DELCOM-ASN - Delcom, Inc. | 8.4K | 65.5K | 24 |
| AS11623US | CTCN - CT Communications Network | 8.4K | 65.5K | 4 |
| AS47869US | CL-1763-47869 - ColoHouse LLC | 8.4K | 1K | 16 |
| AS398816US | FLUME-01 - Flume | 8.4K | 66.3K | 23 |
| AS19528US | MPDCOL - Meridian Parkway Data Center Owner, LLC | 8.4K | 32.8K | 17 |
| AS13392US | R18ESC - Region 18 Education Service Center | 8.4K | — | 2 |
| AS32142US | ASD20 - Academy School District 20 | 8.4K | — | 2 |
| AS400684US | ZOOMFIBER-01 - Zoom Fiber | 8.4K | — | 13 |
| AS2732US | VALLIANT-TEL - Valliant Telephone Co INC | 8.4K | 65.5K | 5 |
| AS21708US | SDCOE - San Diego County Office of Education | 8.4K | — | 2 |
| AS32220US | ASN-BELD - Braintree Electric Light Dept. | 8.4K | 65.5K | 4 |
| AS394473US | BTC-ONLINE - Brantley Telephone Company, Inc. | 8.4K | — | 7 |
| AS62814US | ZETA-SACRAMENTO - Zeta Broadband, Inc. | 8.4K | 4.1K | 5 |
| AS400610US | MID-MICH-NET-EDUC-TELE-3 - Middle Michigan Network for Educational Telecommunications | 8.4K | — | 13 |
| AS47095US | MURRAY-ELECTRIC-SYSTEM - Murray Electric System | 8.4K | — | 15 |
| AS40232US | MIDSTATES-WIRELESS - Mid-States Services, LLC. | 8.4K | 65.5K | 27 |
| AS14713US | HBL-35-14713 - Hosted Backbone | 8.4K | 65.5K | 25 |
| AS33691US | HOU1-ENT-DC-VA1 - NEW CCH, LLC | 8.4K | 257 | 6 |
| AS46790US | PHS-WA - Providence Health & Services | 8.4K | — | 23 |
| AS29878US | CHMP-ASN - Community Hospital of the Monterey Peninsula | 8.4K | — | 2 |
| AS186US | CUA-AS - The Catholic University of America | 8.4K | — | 2 |
| AS36610US | EKNNET - East Kentucky Network, LLC. | 8.4K | 65.5K | 19 |
| AS11430US | BESTNAP - Austin Bestline | 8.4K | 65.5K | 4 |
| AS63360US | AS-PERTINO - Cradlepoint, Inc. | 8.4K | — | 33 |
| AS4364US | IGLOU - IgLou Internet Services | 8.4K | — | 2 |
| AS40326US | ECKERD-COLLEGE - Eckerd College | 8.4K | — | 33 |
| AS23341US | FITAS - Fashion Institute of Technology | 8.4K | — | 14 |
| AS35891US | NLB-ASN - Norwood Light Broadband | 8.4K | 65.5K | 6 |
| AS18838US | DCSSGA - DeKalb County School District | 8.4K | — | 3 |
| AS273US | DNIC-AS-00273 - United States Department of Defense (DoD) | 8.4K | — | 2 |
| AS46353US | INTERMAX-AS - Intermax Networks | 8.4K | 65.5K | 10 |