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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1K |
| — |
| 4 |
| AS54135US | TGNA-WTLV - TEGNA Inc. | 1K | — | 4 |
| AS40886US | PRAC - Plymouth Rock Assurance Corporation | 1K | — | 4 |
| AS398437US | HOT-SPRINGS-TEL-01 - Hot Springs Telephone Company | 1K | — | 1 |
| AS62861US | RAYCOM-MEDIA-RSA - Gray Media, Inc. | 1K | — | 4 |
| AS400182US | 360-CONDOMINIUMS - 360 Condominiums | 1K | — | 1 |
| AS12027US | HYTRON-CA - Hytron Network Services (US) LLC | 1K | — | 3 |
| AS396011US | NISOURCE-CORPORATE-SERVICES-COMPANY - NiSource Corporate Services Company | 1K | — | 4 |
| AS32987US | AS080780 - Clnetworks Inc | 1K | — | 3 |
| AS13751US | UAGC - University of Arizona Global Campus | 1K | — | 1 |
| AS22445US | MHK - Mohawk Industries, Inc. | 1K | — | 4 |
| AS32877US | SKYWAYNETWORKS - Skyway Networks | 1K | — | 2 |
| AS26116US | QUIC-CLOUD-CDN - QUIC CLOUD INC. | 1K | — | 4 |
| AS402823US | SILOCOMM-AS-1 - Silo | 1K | — | 1 |
| AS22912US | CITGO-PETROLEUM - CITGO PETROLEUM CORPORATION | 1K | — | 4 |
| AS23531US | SUNRISE-BANKS - Sunrise Banks | 1K | — | 2 |
| AS400944US | POPUP-WIFI-AS - PopUp WiFi LLC | 1K | — | 4 |
| AS12018US | OOCL-SJC - OOCL (USA), Inc. | 1K | — | 4 |
| AS17294US | BI-631 - Build io, Inc. | 1K | — | 1 |
| AS46745US | GCSSK12NET - Gainesville City Schools | 1K | — | 1 |
| AS25898US | FULL-SAIL-INC - Full Sail, Inc. | 1K | — | 4 |
| AS32484US | BOWTIE - Fontainebleau Las Vegas | 1K | 65.5K | 4 |
| AS394903US | HCDL-PHILADELPHIA-DATA-CENTER - H5 Data Centers | 1K | 256 | 5 |
| AS36253US | DCIUNET - Delaware County Intermediate Unit | 1K | — | 1 |
| AS46090US | AMX - LATAM Telecommunications, L.L.C. | 1K | — | 4 |
| AS40454US | MMUIA-NET-15 - Manning Municipal Utilities | 1K | — | 1 |
| AS53355US | CUW-1 - Concordia University Wisconsin | 1K | 1 | 5 |
| AS20197US | NCRC-KANNAPOLIS - Castle & Cooke North Carolina, LLC | 1K | — | 3 |
| AS53760US | XT-NEWORLEANS - Xenir, LLC | 1K | — | 2 |
| AS17318US | DOMAINTOOLS - DomainTools, LLC | 1K | — | 1 |
| AS17026US | SHRSS-ASN-01 - Seminole Hard Rock Support Services,LLC | 1K | — | 3 |
| AS53548US | ORCASONLINE1 - Orcas Online, Inc | 1K | — | 4 |
| AS54224US | ALPINEBK-ALPINE-BAN - Alpine Banks of Colorado | 1K | — | 3 |
| AS40481US | G3-ASN-1 - G3 Group | 1K | — | 1 |
| AS16538US | PDC - Pacific Disaster Center | 1K | — | 1 |
| AS394001US | RRISD-AS-1 - Round Rock Independent School District | 1K | — | 3 |
| AS393912US | BEMIS-PUBAS1 - Bemis | 1K | — | 2 |
| AS40222US | CREDIT-ONE-AS - Credit One Bank | 1K | — | 4 |
| AS36259US | AS-NALCO-NA - Ecolab, Inc. | 1K | — | 1 |
| AS23275US | LM-USA - Lycamobile USA Inc | 1K | — | 4 |
| AS33273US | CURRENT-HIGH-SPEED - Current Inc. | 1K | 256 | 2 |
| AS30013US | PIXAR-AS - Pixar | 1K | 3 | 7 |
| AS394230US | CDCK - Civilized Discourse Construction Kit, Inc. | 1K | 5 | 9 |
| AS13471US | AS13471 - PFS Web | 1K | — | 4 |
| AS31817US | PSC - Progress Software Corp - CSG | 1K | — | 2 |
| AS32478US | ITVOCAL - IT Vocal LLC | 1K | 4.1K | 2 |
| AS10634US | INET-COMPUTERS-INC - iNET Computers, Inc. | 1K | — | 3 |