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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,291 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,268 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 411 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,732 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,968 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS17296US | GIGAFY - Pioneer Broadband | — | — | 0 |
| AS17323US | ARA-SWD - Applied Research Associates | — | — | 0 |
| AS18468US | POORMAN-DOUGLAS - Epiq Class Action & Claims Solutions, Inc | — | — | 0 |
| AS18471US | SI-ASN - Senvest International | — | — | 0 |
| AS18477US | G2-SATELLITE-SOLUTIONS-CORPORATION - G2 Satellite Solutions Corporation | — | — | 0 |
| AS18565US | VINS-AS-3 - Flexential Colorado Corp. | — | — | 0 |
| AS18589US | OZCAP-NYC - Och Ziff Captial Managment | — | — | 0 |
| AS18652US | TOTALITY-2 - Verizon Business | — | — | 0 |
| AS18703US | IBMCCH-ASH - IBM | — | — | 0 |
| AS18722US | SUPERVALU - SUPERVALU, Inc. | — | — | 0 |
| AS18727US | DNPS - Detroit Newspapers | — | — | 0 |
| AS18884US | RCLS - Ramapo Catskill Library System | — | — | 0 |
| AS18985US | GAP-INC - The Gap, Inc. | — | — | 0 |
| AS19062US | CMH-AMHS-1187 - Columbia Memorial Health | — | — | 0 |
| AS19252US | MHOSTING - mhosting llc | — | — | 0 |
| AS19603US | KYN-GTS - Kyndryl | — | — | 0 |
| AS19612US | JPMORGAN-VASTERA - JPMorgan Chase & Co. | — | — | 0 |
| AS19638US | CARRINGTON-CAPITAL - Carrington Mortgage Holdings, LLC | — | — | 0 |
| AS19668US | PRICEWATERHOUSECOOPERS-MSO - PriceWaterhouseCoopers, LLP | — | — | 0 |
| AS19791US | CLOUGH-CAPITAL---ASN - Clough Capital Partners | — | — | 0 |
| AS19931US | LMK-NET - LMK Communications, LLC | — | — | 0 |
| AS19932US | WEBSTER-BANK - Webster Bank, National Association | — | — | 0 |
| AS20033US | NOAA-NCDC - National Oceanic and Atmospheric Administration | — | — | 0 |
| AS20060US | CSC-FS-AS20060 - DXC US Latin America Corporation | — | — | 0 |
| AS20113US | COOK - American Messaging Services L.L.C. | — | — | 0 |
| AS20151US | ARISTATA-OFF-NET - Visionary Communications LLC | — | — | 0 |
| AS20170US | MARITZFENTONMO - Maritz Holdings Inc. | — | — | 0 |
| AS20198US | CBSITE-IIR - CareerBuilder, LLC | — | — | 0 |
| AS20226US | ROADWAY-EXPRESS - Roadway Express, Inc. | — | — | 0 |
| AS20290US | APOXY - Apoxy, Inc. | — | — | 0 |
| AS20362US | VGRS-AC18 - VeriSign Global Registry Services | — | — | 0 |
| AS21606US | SUMMER-ROAD - Summer Road, LLC | — | — | 0 |
| AS21679US | SERVERSIDE-01 - Liquid Web, L.L.C | — | — | 0 |
| AS21688US | GMP-METROCAST - Breezeline | — | — | 0 |
| AS21716US | SDL-MO - SDL Inc | — | — | 0 |
| AS21910US | DRTN-SFA - Verizon Business | — | — | 0 |
| AS22021US | ONTV-PITTSBURGH - OnTV Pittsburgh | — | — | 0 |
| AS22026US | RESERVED-IPADMIN - Level 3 Parent, LLC | — | — | 0 |
| AS22052US | WARPNETWORKS-1 - Warp Networks, Inc. | — | — | 0 |
| AS22095US | NCR-2 - NCR Voyix Corporation | — | — | 0 |
| AS22170US | NEFMLS-JAX - Northeast Florida MLS, Inc. | — | — | 0 |
| AS22190US | VIRTU-22190 - Virtu Financial Operating LLC | — | — | 0 |
| AS22207US | AKAMAI-AS - Akamai Technologies, Inc. | — | — | 0 |
| AS22459US | MCKESSON-HEALTH-SVCS - McKesson Corporation | — | — | 0 |
| AS22467US | MIRRORPLUS - Mirror Plus Technologies Inc. | — | — | 0 |
| AS22469US | RENTGROUP-INC - PRIMEDIA, INC. | — | — | 0 |