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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,171 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,368 |
| 512 |
| — |
| 2 |
| AS19726US | HCA-PUBLIC - HCA Information Technology & Services, Inc. | 512 | — | 2 |
| AS27502US | CHOWCHILLADIST - Madera County Office of Education | 512 | — | 2 |
| AS393813US | QUANTUM-HEALTH - Quantum Health Inc | 512 | — | 2 |
| AS395188US | SALADASN-01 - US FOODS, INC. | 512 | — | 2 |
| AS32549US | JCISD-1 - Jackson County Intermediate School District | 512 | — | 1 |
| AS395513US | WAB-PUBLIC - Woori America Bank | 512 | — | 2 |
| AS54429US | LOCAL-CONNECTIVITY-LAB - Local Connectivity Lab | 512 | 2 | 4 |
| AS46381US | E-INS-NET - E-INS, LLC | 512 | — | 2 |
| AS22840US | ATC-IP-LLC - ATC IP LLC | 512 | — | 2 |
| AS399574US | RCCD-ASN - Riverside Community College District | 512 | — | 1 |
| AS30116US | WNI-NORMAN - WEATHERNEWS AMERICA INC. | 512 | — | 2 |
| AS16653US | CVENT - Cvent, Inc. | 512 | 1 | 3 |
| AS19839US | SANDSBETHLEHEM - Wind Creek Bethlehem LLC | 512 | — | 2 |
| AS400157US | ENL-ASN-EASTMAN-CHEMICAL - Eastman Chemical Company | 512 | — | 2 |
| AS18746US | MIG-BGP - Merchants Insurance Group | 512 | — | 2 |
| AS62634US | NGP-TELENETWORKS - NGP Telenetworks, Inc. | 512 | — | 1 |
| AS398547US | KAT-NET-SERVERS - Kat-Net Servers LLC | 512 | — | 2 |
| AS40659US | BMW-GDCA-AS - BMW of North America, LLC (Group Data Centers America) | 512 | 2 | 4 |
| AS13378US | QINGYE-CLOUD - Qingye Cloud | 512 | 1 | 3 |
| AS19449US | CONCURRENT - Concurrent Technologies Corp. | 512 | — | 2 |
| AS395057US | CAREOREGON - CareOregon | 512 | — | 2 |
| AS15331US | BCI-LAB - Blackfoot Telephone Cooperative, Inc. | 512 | 256 | 2 |
| AS36765US | WLKY-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS402072US | OZONTI-NETWORK-LLC - OZONTI NETWORK LLC | 512 | 257 | 4 |
| AS55179US | MMA - The Metropolitan Museum of Art | 512 | — | 1 |
| AS32236US | TRANSCOM-BGP-01 - TRANSCOM | 512 | — | 2 |
| AS54542US | K-DATA01 - K-Data Systems, LLC | 512 | — | 1 |
| AS19913US | AS-WPNP - W-PNP, Inc. | 512 | — | 2 |
| AS53521US | CDS-200 - Complete Discovery Source | 512 | — | 2 |
| AS400452US | UC-DAVIS-HEALTH - University of California Davis Medical Center | 512 | — | 2 |
| AS49427US | NETRC NETRC LLC | 512 | — | 2 |
| AS17031US | WINSTON-SALEM-SCHOOLS - Winston-Salem/Forsyth County Schools | 512 | — | 1 |
| AS397037US | CITY-OF-AMARILLO - City of Amarillo | 512 | — | 2 |
| AS402003US | EZGAMEHOST-NET-1 - EZ Game Host, LLC | 512 | 256 | 3 |
| AS54890US | BBIX-USA-NET - BBIX USA, INC. | 512 | — | 1 |
| AS63468US | INFINITTNA - Infinitt North America, Inc. | 512 | — | 2 |
| AS399568US | OFF-GRID-COMMUNICATIONS-LLC - Off-Grid Communications LLC | 512 | 4.1K | 3 |
| AS213550US | JONRADEL Jon Radel | 512 | 4 | 6 |
| AS397600US | BANKOZK-DALLAS - Bank OZK | 512 | — | 2 |
| AS400571US | CADENCE-ATL - CDNS | 512 | — | 2 |
| AS396882US | N3XTWORK - N3XTWORK LLC | 512 | — | 2 |
| AS396522US | EMAME-INET-1 - Versant Power | 512 | — | 2 |
| AS17290US | H2-TECHNOLOGIES-LLC - Austin Hadley, Sole Proprietorship | 512 | 4.1K | 3 |
| AS22444US | USCOLD - United States Cold Storage Inc. | 512 | — | 2 |
| AS16394US | KILLEEN-INDEPENDENT-SCHOOL-DISTRICT - Killeen ISD | 512 | — | 2 |
| AS396492US | DBISP - dbISP, LLC | 512 | — | 2 |