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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| 8.4K |
| — |
| 16 |
| AS31766US | UPS-12-ASN - University of Puget Sound | 8.4K | — | 2 |
| AS13392US | R18ESC - Region 18 Education Service Center | 8.4K | — | 2 |
| AS31769US | GIGSTREEM-NYC - GiGstreem | 8.4K | 256 | 15 |
| AS29734US | TDA - Tuttle Development Authority | 8.4K | — | 4 |
| AS32142US | ASD20 - Academy School District 20 | 8.4K | — | 2 |
| AS400610US | MID-MICH-NET-EDUC-TELE-3 - Middle Michigan Network for Educational Telecommunications | 8.4K | — | 13 |
| AS30219US | MLB-ADVANCED-MEDIA - Major League Baseball Advanced Media, LP | 8.4K | — | 33 |
| AS40149US | UBNET1-AS - University of Bridgeport | 8.4K | — | 2 |
| AS19138US | SWEET-BRIAR-COLLEGE - Sweet Briar College | 8.4K | — | 2 |
| AS18460US | FHSU - Fort Hays State University | 8.4K | 64 | 3 |
| AS29878US | CHMP-ASN - Community Hospital of the Monterey Peninsula | 8.4K | — | 2 |
| AS137922US | IBOSS-AS-AP - IBOSS Inc. | 8.4K | 16 | 46 |
| AS7246US | BMS-AS - Bristol-Myers Squibb Company | 8.4K | 10 | 42 |
| AS30091US | ACCESS-CABLE - Access Cable Television, Inc. | 8.4K | — | 12 |
| AS395563US | EDISON-CARRIER-SOLUTIONS - Southern California Edison | 8.4K | — | 2 |
| AS29944US | DATABANK-LATISYS - Latisys-Ashburn, LLC | 8.4K | — | 2 |
| AS46555US | RSOE-NA - TAKE-TWO INTERACTIVE SOFTWARE, INC. | 8.4K | — | 22 |
| AS36610US | EKNNET - East Kentucky Network, LLC. | 8.4K | 65.5K | 19 |
| AS40004US | CONRAD - CONRADIT, LLC | 8.4K | — | 2 |
| AS397305US | FMCTC - FMCTC | 8.4K | — | 25 |
| AS23546US | DELCOM-ASN - Delcom, Inc. | 8.4K | 65.5K | 24 |
| AS399006US | KUDZU-01 - KUDZU NETWORKS, INC | 8.4K | 65.5K | 6 |
| AS40248US | CSL0-AS - County of San Luis Obispo | 8.4K | — | 2 |
| AS186US | CUA-AS - The Catholic University of America | 8.4K | — | 2 |
| AS30361US | SWIFTWILL2 - Swiftwill, Inc. | 8.4K | 3 | 14 |
| AS21577US | TOLEDOTELNET - TOLEDO TELEPHONE CO INC | 8.4K | 65.5K | 5 |
| AS36305US | AMTA-AS1 - The Albany Mutual Telephone Association | 8.4K | 65.5K | 4 |
| AS25831US | PREFIX NETWORK - Prefix Network LLC | 8.4K | — | 6 |
| AS40232US | MIDSTATES-WIRELESS - Mid-States Services, LLC. | 8.4K | 65.5K | 27 |
| AS137235US | AS137235 Wired ISP Inc. | 8.4K | — | 33 |
| AS394473US | BTC-ONLINE - Brantley Telephone Company, Inc. | 8.4K | — | 7 |
| AS40336US | UNISKY-MIA - Jacobi International Inc. | 8.4K | — | 3 |
| AS47066US | PRGMR - prgmr.com, Inc. | 8.4K | 65.5K | 20 |
| AS11623US | CTCN - CT Communications Network | 8.4K | 65.5K | 4 |
| AS33691US | HOU1-ENT-DC-VA1 - NEW CCH, LLC | 8.4K | 257 | 6 |
| AS19224US | QSGIT - Quantum Services Group, LLC. | 8.4K | 65.5K | 15 |
| AS47095US | MURRAY-ELECTRIC-SYSTEM - Murray Electric System | 8.4K | — | 15 |
| AS18838US | DCSSGA - DeKalb County School District | 8.4K | — | 3 |
| AS30154US | DAVEN - Davenport University | 8.4K | 1 | 3 |
| AS27555US | BV-PUBLIC-ASN - Black & Veatch International Company | 8.4K | — | 16 |
| AS393684US | INFINITYLINK - Infinity Network Services, Inc. | 8.4K | 135.2K | 23 |
| AS19528US | MPDCOL - Meridian Parkway Data Center Owner, LLC | 8.4K | 32.8K | 17 |
| AS11430US | BESTNAP - Austin Bestline | 8.4K | 65.5K | 4 |
| AS903US | UNIFIED-COMMUNICATIONS-TECHNOLOGIES - Unified Communications Technologies, LLC | 8.4K | — | 19 |
| AS26633US | TEXAS-WOMANS-UNIVERSITY - Texas Woman's University | 8.4K | — | 14 |
| AS25892US | VERTEX - VTX Telecom | 8.4K | 131.1K | 20 |