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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 |
| — |
| — |
| 0 |
| AS46813US | AS-OMNIVA-TXDC - Omniva LLC | — | — | 0 |
| AS46856US | PCUC-AS - PostUp LLC | — | — | 0 |
| AS46862US | ASC-ASN - ASC | — | — | 0 |
| AS46961US | CLOUDBREAKASN - Carenection LLC | — | — | 0 |
| AS46991US | SWEDISH-MEDICAL-CENTER-SHS - SWEDISH MEDICAL CENTER | — | — | 0 |
| AS47045US | SG-AME-47045 - SG Americas Operational Services Inc. | — | — | 0 |
| AS47099US | WITOPIA-AS1 - WiTopia, Inc. | — | — | 0 |
| AS49187US | YOUTHIDC-AS YOUTHIDC LLC | — | — | 0 |
| AS53360US | CUMULUS - Integral Solutions Group | — | — | 0 |
| AS53408US | MAREX-CHIDC - Marex Group, Inc. | — | — | 0 |
| AS53439US | SUNGARDRS - BroadbandONE, LLC | — | — | 0 |
| AS53496US | ACOUSTIC-AS-53496 - Acoustic, L.P. | — | — | 0 |
| AS53522US | BANK-OF-STOCKTON - Bank of Stockton | — | — | 0 |
| AS53552US | NETCLOUDX LLC - NETCLOUDX LLC | — | — | 0 |
| AS53601US | OFI-SEATTLE - Invesco Group Services, Inc. | — | — | 0 |
| AS53653US | VALLIANT-AS - CHICKASAW TELEPHONE | — | — | 0 |
| AS53669US | GHS-165-152-205 - Gaming Hospitality Solutions | — | — | 0 |
| AS53743US | RCIS-COM - RCIS | — | — | 0 |
| AS53849US | VTC-AS - Vernon Communications Cooperative | — | — | 0 |
| AS53884US | I3-ENTERACLOUD - Enteracloud Solutions | — | — | 0 |
| AS53908US | D3 - Deluxe Laboratories, Inc. | — | — | 0 |
| AS53909US | KIPANYAS - Kipany Productions, LTD. | — | — | 0 |
| AS53976US | EXPEDIENT-EMEA - Expedient | — | — | 0 |
| AS54042US | BL-836-54042 - Buzmo, LLC | — | — | 0 |
| AS54129US | SURESTREAM - SureStream LLC | — | — | 0 |
| AS54165US | AS73981 - NORTHERN ENGRAVING CORPORATION | — | — | 0 |
| AS54176US | AS54176 - JAB Wireless, INC. | — | — | 0 |
| AS54260US | SCIQUEST-ASN - JAGGAER | — | — | 0 |
| AS54401US | ITGNY - Imagineer Technology Group,LLC | — | — | 0 |
| AS54446US | ALLERGAN-1 - Allergan, Inc. | — | — | 0 |
| AS54553US | ONYX-PHARMACEUTICALS - Onyx Pharmaceuticals, Inc. | — | — | 0 |
| AS54557US | VMW-BOSTON - Avago Technologies U.S. Inc. | — | — | 0 |
| AS54569US | MKC-MOUNDRIDGE-AS - MKC | — | — | 0 |
| AS54608US | UDSG-01 - UNIFIED DIGITAL SERVICES GROUP LLC | — | — | 0 |
| AS54653US | WILLIS TOWERS WATSON - Willis Towers Watson | — | — | 0 |
| AS54673US | NYCCO-AS01 - NYC & Company, Inc. | — | — | 0 |
| AS54712US | CI-100-43-212-0 - Color Image Apparel, Inc. | — | — | 0 |
| AS54736US | SUREID-INC - Fortior Solutions | — | — | 0 |
| AS54750US | DASTOR - DaSTOR LLC | — | — | 0 |
| AS54770US | LPS-5 - Black Knight IP Holding Company, LLC | — | — | 0 |
| AS54810US | CSPI-AS1 - CSP, Inc. | — | — | 0 |
| AS54873US | LISS-NET - LISS Consulting Corp. | — | — | 0 |
| AS54922US | ENVESNET-54922 - ENV | — | — | 0 |
| AS55005US | TRANSAM-ASN - Transam Trucking, Inc | — | — | 0 |
| AS55150US | SYNCBAK - Syncbak, Inc. | — | — | 0 |
| AS55168US | ACAB-INC - All Computers Are Brilliant, Inc. | — | — | 0 |