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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| 8.7K |
| — |
| 24 |
| AS14861US | ISC-GROUP - ISC Group | 8.7K | — | 6 |
| AS18690US | MEDIDATA - Medidata Solutions, Inc | 8.7K | — | 3 |
| AS32665US | SOCALGAS-1 - Southern California Gas Company | 8.7K | — | 2 |
| AS22413US | EMPOWER - empower, Delivered by Craighead Electric | 8.7K | 65.5K | 25 |
| AS46082US | VOLTAGEPARK - Voltage Park, Inc. | 8.7K | 4.1K | 16 |
| AS54996US | SCRIPPSHEALTH - Scripps Health | 8.7K | — | 3 |
| AS10708US | SELECTNET-AS - SelectNet Internet Services | 8.7K | — | 19 |
| AS5090US | ARKANSASTECH - ARKANSAS TECH UNIVERSITY | 8.7K | 1 | 4 |
| AS32013US | CATHOLIC-HEALTH-CARE-WEST - Dignity Health | 8.7K | — | 4 |
| AS19356US | TOUA-NOC - Tohono O'Odham Utility Authority | 8.7K | — | 4 |
| AS5716US | CYBERCOM - Cyber Access Internet Communications, Inc. | 8.7K | — | 8 |
| AS3755US | NYSERNET3-AS - NYSERNet | 8.7K | 2 | 6 |
| AS19790US | ASPIRE-FIBER - Aspire Broadband, LLC | 8.7K | 4.1K | 5 |
| AS206US | CSC-IGN-AMER-AS206 - DXC US Latin America Corporation | 8.7K | — | 4 |
| AS33501US | MTDIGITAL - Montana Digital, LLC. | 8.7K | 65.5K | 6 |
| AS19999US | UNIONASN - Union College | 8.7K | — | 4 |
| AS17099US | CALLIS-COMMUNICATIONS-AS - Callis Communications | 8.7K | — | 8 |
| AS400180US | FMTC-STANTON - The Farmers Mutual Telephone Company of Stanton, Iowa | 8.7K | — | 19 |
| AS23255US | PACIFICORP - Pacificorp | 8.7K | — | 15 |
| AS20392US | WESTPANET - WestPAnet, Inc. | 8.7K | — | 2 |
| AS395563US | EDISON-CARRIER-SOLUTIONS - Southern California Edison | 8.4K | — | 2 |
| AS27597US | SITESERVER-IDC1 - Siteserver, Inc. | 8.4K | 65.5K | 3 |
| AS40149US | UBNET1-AS - University of Bridgeport | 8.4K | — | 2 |
| AS29878US | CHMP-ASN - Community Hospital of the Monterey Peninsula | 8.4K | — | 2 |
| AS11430US | BESTNAP - Austin Bestline | 8.4K | 65.5K | 4 |
| AS11708US | LINKCITY - City of North Kansas City, MO | 8.4K | 65.5K | 4 |
| AS33691US | HOU1-ENT-DC-VA1 - NEW CCH, LLC | 8.4K | 257 | 6 |
| AS31715US | ABTME-AS CloudIP LLC | 8.4K | — | 33 |
| AS47869US | CL-1763-47869 - ColoHouse LLC | 8.4K | 1K | 16 |
| AS18838US | DCSSGA - DeKalb County School District | 8.4K | — | 3 |
| AS40248US | CSL0-AS - County of San Luis Obispo | 8.4K | — | 2 |
| AS30154US | DAVEN - Davenport University | 8.4K | 1 | 3 |
| AS397305US | FMCTC - FMCTC | 8.4K | — | 25 |
| AS19138US | SWEET-BRIAR-COLLEGE - Sweet Briar College | 8.4K | — | 2 |
| AS18460US | FHSU - Fort Hays State University | 8.4K | 64 | 3 |
| AS46160US | SKYTAP-TUK - Kyndryl | 8.4K | — | 17 |
| AS12222US | AKAMAI - Akamai Technologies, Inc. | 8.4K | 123 | 155 |
| AS13392US | R18ESC - Region 18 Education Service Center | 8.4K | — | 2 |
| AS1054US | ZONT-LLC - Zont LLC | 8.4K | 6 | 32 |
| AS47095US | MURRAY-ELECTRIC-SYSTEM - Murray Electric System | 8.4K | — | 15 |
| AS394473US | BTC-ONLINE - Brantley Telephone Company, Inc. | 8.4K | — | 7 |
| AS21577US | TOLEDOTELNET - TOLEDO TELEPHONE CO INC | 8.4K | 65.5K | 5 |
| AS27555US | BV-PUBLIC-ASN - Black & Veatch International Company | 8.4K | — | 16 |
| AS54393US | FLC-DURANGO - Fort Lewis College | 8.4K | — | 18 |
| AS25831US | PREFIX NETWORK - Prefix Network LLC | 8.4K | — | 6 |
| AS16477US | NCL-203-16477 - Nielsen Consumer LLC | 8.4K | — | 21 |