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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 | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| SERVICENOW-WAVE - SERVICENOW, INC. |
| 4.6K |
| 3 |
| 9 |
| AS398022US | OTP-398022 - Otter Tail Power Company | 4.6K | — | 3 |
| AS397087US | MUW-ASN-01 - Mississippi University for Women | 4.6K | — | 3 |
| AS3380US | PPPL-AS1 - Princeton Plasma Physics Laboratory | 4.6K | — | 3 |
| AS22855US | CARDINALHEALTH-AS01 - Cardinal Health, Inc. | 4.6K | 1 | 18 |
| AS32135US | SAKURA-EYEBALL - SAKURA LTD. | 4.6K | — | 18 |
| AS46176US | JIUCLOUD - JiuCloud Networks LLC | 4.6K | — | 5 |
| AS38047US | TAIWAN-TELECOM - Taiwan Telecom | 4.6K | 65.8K | 30 |
| AS54363US | BHI - Baker Hughes Holdings LLC | 4.6K | — | 17 |
| AS398335US | HELIO - Helio Broadband, LLC | 4.6K | — | 4 |
| AS398946US | CONTENTKEEPER-AS-ARIN - ContentKeeper Technologies | 4.6K | 4 | 18 |
| AS22135US | SKECHERS-USA - Skechers USA | 4.6K | — | 17 |
| AS19353US | TUASN7 - Trans Union, LLC | 4.6K | — | 9 |
| AS53926US | APA-US-ASN - Apache Corporation | 4.6K | — | 4 |
| AS62605US | UNTANGLEDTECH - Untangled Technology, LLC | 4.6K | 65.5K | 4 |
| AS53782US | PCOASTP - Pacific Coast Producers | 4.6K | — | 3 |
| AS22361US | BWL - Believe Wireless, LLC. | 4.6K | 65.5K | 4 |
| AS36487US | NEB-SANDHILLS-NET - Consolidated Telephone Company | 4.6K | — | 18 |
| AS11015US | TCH-AS - Texas Children's Hospital | 4.6K | — | 8 |
| AS36002US | GOMAMI - GoMami Networks | 4.6K | — | 16 |
| AS394867US | VC-ASN-01 - Velocity Communications, Inc. | 4.6K | — | 4 |
| AS397754US | TELLERWIFI - TellerWifi | 4.6K | — | 12 |
| AS29819US | MIS124 - Natural Networks, Inc. | 4.6K | — | 3 |
| AS15176US | AS-INOC - INOC, LLC | 4.6K | 65.5K | 4 |
| AS11170US | ROLLERNETWORK - Roller Network LLC | 4.6K | 65.5K | 9 |
| AS27011US | XSR-ASN - XM Satellite Radio | 4.6K | — | 17 |
| AS32674US | BLUE-HILL-DATA-SERVICES-AS - Blue Hill Data Services | 4.6K | 65.5K | 4 |
| AS398232US | CONNECTANZA - Anza Electric Cooperative Inc | 4.6K | — | 7 |
| AS30343US | DFWCHECKPOINT - Check Point Software Technologies, Inc. | 4.6K | 1 | 4 |
| AS21515US | NET-SISQTEL-NET1 - SISKIYOU TELEPHONE COMPANY | 4.6K | 65.5K | 3 |
| AS46193US | SKYWERX - Visionary Communications LLC | 4.6K | — | 15 |
| AS3571US | EY-AS - Ernst & Young LLP | 4.6K | — | 18 |
| AS395357US | RIVIERA-CELLULAR-AND-TELECOMMUNICATIONS-INC - Riviera Telephone Company, Inc. | 4.6K | — | 11 |
| AS401443US | WAP-AC - WAP.AC LLC | 4.6K | — | 16 |
| AS35862US | JCWIFI - JCWIFI.COM | 4.6K | 65.5K | 6 |
| AS53958US | BART-BM - AUPROXIES LLC | 4.6K | — | 3 |
| AS31783US | SKRC-SOUTH01 - SKYRIDER COMMUNICATIONS LLC | 4.6K | — | 13 |
| AS19512US | LYONDELL - Lyondell Chemical Company | 4.6K | — | 18 |
| AS13444US | TRS-GL-01 - TRS | 4.6K | 256 | 19 |
| AS14390US | CORENET - Coretel America, Inc. | 4.6K | — | 9 |
| AS29938US | ENDICOTT-DIRECT-NETWORK - Endicott College | 4.6K | — | 3 |
| AS394533US | ROANOKECOLLEGE - Roanoke College | 4.6K | — | 4 |
| AS394170US | SUSQUEHANNA-UNIVERSITY - Susquehanna University | 4.6K | — | 3 |
| AS16816US | S-NETCOM - S-Net, Inc. | 4.6K | 2 | 20 |
| AS63010US | CITY-OF-LAGRANGE-GEORGA - City of LaGrange, Georgia | 4.6K | — | 18 |
| AS3725US | ASN-SONY - Sony Pictures Technologies Inc. | 4.6K | 3 | 6 |
| AS16525US | KBR - KBR | 4.6K | — | 9 |