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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. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 512 |
| — |
| 2 |
| AS397077US | AS11795 - Sony | 512 | 2 | 4 |
| AS400894US | HUMBLEISD - Humble Independent School District | 512 | — | 2 |
| AS22377US | ATSOL - American Traffic Solutions, Inc | 512 | — | 2 |
| AS33726US | GENEVACOLLEGE-AS - GENEVA COLLEGE | 512 | — | 1 |
| AS396890US | CITYOFREDMOND - City of Redmond Washington | 512 | — | 2 |
| AS36674US | ULINE - Uline | 512 | — | 2 |
| AS54204US | WVTM-TV - HEARST CORPORATION | 512 | — | 2 |
| AS26402US | SANTABARBARACITY - City of Santa Barbara | 512 | 2 | 4 |
| AS396976US | BYNUM-DR-01 - AOD Federal Credit Union | 512 | — | 2 |
| AS401606US | CDOT-ITS-01 - Colorado Department of Transportation | 512 | — | 2 |
| AS396101US | NETCLOUD-ASN - Netcloud Services | 512 | 1 | 3 |
| AS2000US | IA-AS - Internet Awareness, Inc. | 512 | 1 | 3 |
| AS32300US | FTNFI-ASN - FTN Financial | 512 | — | 2 |
| AS36010US | RBSTARNET1 - Randolph-Brooks Federal Credit Union | 512 | — | 2 |
| AS46252US | HIA-TRCY - Hagerty Insurance Agency LLC | 512 | — | 2 |
| AS26992US | UHG-CIMPLIFY - CIMplify | 512 | — | 2 |
| AS396071US | NTT-GLOBAL-DATA-CENTERS-AMERICA-INC - NTT Global Data Centers Americas, INC. | 512 | 4.1K | 2 |
| AS396205US | ALTRUISTA - Altruista Health, Inc | 512 | — | 2 |
| AS20367US | CITY-OF-STCLOUD-FL - CITY OF ST. CLOUD | 512 | — | 2 |
| AS36811US | WIZTECH-INTERNET - Wiztech Internet | 512 | 1 | 3 |
| AS19656US | LOCAL-SECURE-DATA - Lehigh Secure Data LLC | 512 | 65.5K | 3 |
| AS394270US | CABI-LLC-1 - Cabi LLC | 512 | — | 2 |
| AS399325US | APOG-GMU - Apogee Telecom Inc. | 512 | — | 1 |
| AS15285US | SRLCD - Cash Depot | 512 | — | 2 |
| AS394916US | PHLAIRPORT - Philadelphia International Airport | 512 | — | 2 |
| AS136806US | TII-AS-IN - Texas Instruments, Inc | 512 | — | 2 |
| AS32744US | MCCC - Montgomery County Community College | 512 | — | 2 |
| AS400242US | SIEMENS-EDC-MIF - Siemens Corporation | 512 | 1 | 3 |
| AS400653US | UPENN-WHARTON-SF - University of Pennsylvania | 512 | 1 | 2 |
| AS11248US | MSTS-NET - TreviPay | 512 | — | 2 |
| AS395508US | PORTS-AMERICA - Ports America Shared Services, Inc. | 512 | — | 2 |
| AS26304US | COBORNS-PUB - Coborn's Inc | 512 | — | 2 |
| AS19063US | ASCENSION-OKTUL - Ascension Technologies | 512 | — | 2 |
| AS401612US | HUENET - hueNET | 512 | 2 | 4 |
| AS36638US | JRCH-AS - Jackson Rancheria Band of Miwuk Indians | 512 | — | 2 |
| AS53793US | ACLI - ACLI | 512 | — | 2 |
| AS401755US | TSI-BGP - Think Smart Group, Inc. | 512 | — | 1 |
| AS10402US | HSD2-AS - Harrison School District Two | 512 | — | 1 |
| AS26036US | KOOTENAIHEALTH - Kootenai Medical Center | 512 | — | 2 |
| AS14279US | HDS-ORL-ASN1 - HD Supply, Inc. | 512 | — | 2 |
| AS25735US | SLOTH-NET - Sloth Networks | 512 | 256 | 3 |
| AS399525US | RIMROCK-WIRELESS - Rimrock Wireless | 512 | 4.1K | 3 |
| AS46999US | CREWSBANKCORP - Crews Banking Corporation | 512 | — | 2 |
| AS398063US | ADVISOR360-ASN - Advisor360 LLC | 512 | — | 2 |
| AS15276US | ZENDA-ASN - Zenda Telephone | 512 | — | 1 |
| AS393448US | LIBERALLY-SINGAPORE - Liberally Network, LLC | 512 | 3 | 5 |