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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| 28.9K |
| 5.3M |
| 47 |
| AS19021US | BTC-BROADBAND - BTC Broadband Inc. | 28.9K | — | 15 |
| AS20394US | MASHELL-TELECOM - Rainier Connect | 28.9K | 131.1K | 8 |
| AS395437US | HIGHLANDTEL - Highland Communications LLC | 28.9K | — | 103 |
| AS14928US | ADAMS-CATV - PenTeleData Inc. | 28.9K | 65.5K | 9 |
| AS27553US | TELNET - Telnet Worldwide, Inc. | 28.7K | 65.5K | 4 |
| AS399673US | TRI-COGO - Tri-CoGo | 28.7K | — | 30 |
| AS396073US | MAJESTIC-HOSTING-01 - Majestic Hosting Solutions, LLC | 28.7K | 260 | 68 |
| AS18454US | AUGSBURG - Augsburg University | 28.7K | — | 3 |
| AS10843US | AITNET - Advanced Internet Technologies | 28.7K | 1 | 4 |
| AS399252US | CVECFIBER-01 - CVECFIBER | 28.7K | 55.3K | 36 |
| AS46595US | PVTN - Penasco Valley Telecommunications | 28.7K | 1.1M | 48 |
| AS396168US | THINKBIGNETWORKS-KC - ThinkBig Networks, LLC | 28.7K | — | 50 |
| AS26760US | SKTC-NET - Southern Kansas Telephone Co., Inc. | 28.7K | — | 43 |
| AS19830US | RTC-RINGGOLD-GA - The Ringgold Telephone Company | 28.7K | 65.5K | 6 |
| AS13588US | PAYCHEX - Paychex Inc. | 28.7K | — | 34 |
| AS397630US | AS-BLAZINGSEO - Blazing SEO, LLC | 28.7K | — | 112 |
| AS40628US | OKLAHOMA-OMES - Oklahoma Office of Management & Enterprise Services | 28.4K | — | 13 |
| AS33734US | MPW-MACHLINK-NET - Muscatine Power and Water | 28.4K | — | 49 |
| AS10801US | REGIONS-ASN-1 - REGIONS FINANCIAL CORPORATION | 28.4K | — | 29 |
| AS54501US | SVEC-1 - Sequachee Valley Electric Cooperative | 28.4K | 98.3K | 36 |
| AS40160US | NEUTRAL-TANDEM - Inteliquent, inc. | 28.4K | — | 102 |
| AS395577US | ITHACA-COLLEGE - Ithaca College | 28.4K | — | 10 |
| AS36295US | FLORIDA-HIGH-SPEED-INTERNET - Florida High Speed Internet | 28.4K | 131.1K | 65 |
| AS22439US | PERFECT-INTERNATIONAL - Perfect International, Inc | 28.4K | 28.7K | 118 |
| AS7819US | GLOBAL-IP-NETWORKS - Global IP Networks INC | 28.4K | 24.6K | 26 |
| AS17161US | MMC - Marsh Inc. | 28.4K | — | 26 |
| AS29825US | IIT-NETWORK-AS - Illinois Institute of Technology | 28.2K | 1 | 8 |
| AS30264US | COLUMBIAPWS - Columbia Power and Water Systems | 28.2K | — | 45 |
| AS53259US | JO-CARROLL-ENERGY - Jo-Carroll Energy, Inc. (NFP) | 28.2K | 65.5K | 20 |
| AS14717US | ECINET - EZE Castle Integration Inc. | 28.2K | 131.1K | 65 |
| AS11409US | EFXSECURE - Equifax, Inc. | 28.2K | 1 | 30 |
| AS22363US | PHMGMT-AS1 - Powerhouse Management, Inc. | 27.9K | 2 | 111 |
| AS393330US | IRI-BGP - Circana LLC | 27.9K | — | 37 |
| AS13414US | TWITTER - Twitter Inc. | 27.9K | 12.3K | 29 |
| AS30030US | WALMART-GUEST-TENANT - Wal-Mart Stores, Inc. | 27.9K | — | 34 |
| AS211192US | Netwave-AS-AP NetWave Inc. | 27.9K | — | 109 |
| AS64233US | TERAMUNDI - Teramundi | 27.9K | — | 84 |
| AS46558US | SUN-DSEO - Oracle Corporation | 27.9K | 13.7K | 51 |
| AS20385US | ACCESSLINE-COM-1000 - AccessLine Communications Corp. | 27.6K | — | 37 |
| AS27005US | PNPT-ASN - Pinpoint Communications, Inc. | 27.6K | 131.1K | 40 |
| AS40328US | ACENTEK-MN - AcenTek | 27.6K | 4.6K | 14 |
| AS36223US | SPANISHFORK-COMMUNITY-NETWORK - Spanish Fork City | 27.6K | 9 | 77 |
| AS55044US | LRCSNET - LR Communications, Inc. | 27.6K | — | 63 |
| AS32391US | SRCACCESS - SANTA ROSA TELEPHONE COOPERATIVE INC | 27.6K | 65.5K | 6 |
| AS22645US | LEARN-COMMODITY - LEARN | 27.6K | 65.5K | 15 |
| AS396287US | NEXTPOWEREDBYNAECLLC - Next, Powered by NAEC, LLC | 27.6K | — | 6 |