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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 |
| 103.2K |
| 278.8K |
| 106 |
| AS64286US | LOGICWEB - LogicWeb Inc. | 102.9K | 2.2M | 188 |
| AS209242US | CLOUDFLARESPECTRUM Cloudflare London, LLC | 102.9K | 262.2K | 300 |
| AS33182US | DIMENOC - HostDime.com, Inc. | 102.7K | 98.4K | 95 |
| AS23316US | BAI-IP-SERVICES - Bel Air Internet, LLC | 102.1K | 256 | 63 |
| AS2685US | ATGS-MMD-AS - AT&T Enterprises, LLC | 101.6K | 65.5K | 40 |
| AS395610US | NXST-AS395610 - Nexstar Broadcasting Inc. | 101.1K | — | 131 |
| AS16669US | APPLIED-MATERIALS - Applied Materials | 100.9K | — | 15 |
| AS36646US | YAHOO-NE1 - Yahoo Holdings Inc. | 100.9K | 12 | 47 |
| AS22260US | THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS22260 - The Bank of New York Mellon Corporation | 100.9K | — | 58 |
| AS14579US | EDWARDJONES - Edward D. Jones & Co., L.P. | 100.6K | — | 12 |
| AS401701US | COGNETCLOUD-2 - cognetcloud INC | 100.6K | — | 93 |
| AS6254US | EGGINC - EG&G, Inc. | 100.4K | — | 8 |
| AS30356US | BCBSM - Blue Cross Blue Shield of Michigan Mutual Insurance | 100.1K | — | 9 |
| AS17386US | GRAINGER - W.W.GRAINGER | 99.6K | — | 8 |
| AS64267US | AS-SPRIOUS - Sprious LLC | 99.6K | 65.5K | 380 |
| AS400463US | DYNANODE-ASN-01 - DynaNode LLC | 99.3K | — | 5 |
| AS13759US | WILKES-MULTI-HOME1 - Wilkes University | 98.8K | — | 4 |
| AS12148US | CLEMSONU - Clemson University | 98.8K | 17 | 6 |
| AS10499US | IUMC-IT - Rochester Gas and Electric Corporation | 98.8K | — | 6 |
| AS20252US | JSIWMC - Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University | 98.8K | — | 4 |
| AS25853US | ELJY30540 - Ellijay Telephone Company | 98.8K | 65.5K | 19 |
| AS1516US | DNIC-ASBLK-01513-01518 - Headquarters, USAISC | 98.8K | — | 58 |
| AS29863US | DATABANK-LATISYS - Latisys-Denver, LLC | 98.6K | 65.5K | 43 |
| AS11611US | ARCTICFOX - Arctic Fox Networks Inc | 98.6K | 36.9K | 65 |
| AS3388US | UNM-AS - University of New Mexico | 98.3K | — | 2 |
| AS398025US | CUMBERLAND-CONNECT - Cumberland Connect | 98.3K | — | 10 |
| AS7847US | NASA-HPCC-ESS - NASA Goddard Space Flight Center | 98.3K | 1 | 3 |
| AS27086US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 98K | — | 142 |
| AS35994US | AKAMAI-AS - Akamai Technologies, Inc. | 98K | 190 | 418 |
| AS32787US | PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK - Akamai Technologies, Inc. | 97.8K | 78 | 390 |
| AS1736US | MU-AS - Marquette University | 97.8K | — | 79 |
| AS33004US | SUNY-ESC - SUNY Empire State University | 97.8K | 1 | 20 |
| AS33616US | CO-MO-COMM - Co-Mo Comm Inc | 97.5K | 65.5K | 150 |
| AS6026US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 97.5K | 1 | 22 |
| AS395354US | ASN-STARRY - Starry, Inc. | 97.3K | 53.2K | 48 |
| AS40934US | FORTINET - Fortinet Inc. | 97.3K | 9 | 381 |
| AS6315US | XMISSION - XMission, L.C. | 96.8K | 139.3K | 39 |
| AS7862US | CHEVRON - Chevron Corporation | 96.8K | 6.1K | 43 |
| AS300US | DNIC-AS-00300 - United States Department of Defense (DoD) | 96.8K | 1 | 36 |
| AS36103US | CENTRALUTAH - Central Utah Telephone, Inc. | 96.5K | 131.1K | 157 |
| AS19255US | YOUR-ORG-INC-NA - YOUR.ORG, INC. | 96.3K | 4.4K | 34 |
| AS19380US | CHROBINSON - C.H. ROBINSON WORLDWIDE, INC. | 96.3K | — | 11 |
| AS14135US | NAVISITE-EAST-2 - Navisite Opco LLC | 96.3K | 2 | 34 |
| AS40237US | UNITED-TELEPHONE - United Telephone Company | 96.3K | 65.5K | 13 |
| AS16811US | SAGENET-GTH - SageNet LLC | 96K | — | 61 |
| AS11520US | ALLSTATE-INSURANCE-CO - Allstate Insurance Company | 96K | — | 69 |