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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,289 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,731 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,972 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS26880US | NODELORD - NodeLord, LLC | — | — | 0 |
| AS26895US | CIMCO1 - First Communications LLC | — | — | 0 |
| AS27073US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27155US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27196US | TPG-MBS - The Purple Guys, L.L.C. | — | — | 0 |
| AS27248US | ASN-NPG-DC - Springer Nature America, INC | — | — | 0 |
| AS27393US | RIA-ASN-01 - Continental Exchange Solutions, Inc. | — | — | 0 |
| AS27440US | SSNC-CHI - SS&C Technologies, Inc. | — | — | 0 |
| AS27581US | ICI-MIA - Incomm | — | — | 0 |
| AS27643US | NBINTERNET - NB INTERNET, LLC | — | — | 0 |
| AS29777US | NICK-BURKE - Manage Your Site Right | — | — | 0 |
| AS29890US | CARCO - Carco Group, Inc. | — | — | 0 |
| AS29910US | IACP - INTL. ASSN OF CHIEF OF POLICEI | — | — | 0 |
| AS29922US | SANFORD-AIRPORT-AUTHORITY - Sanford Airport Authority | — | — | 0 |
| AS30020US | BENFIELD-2003ASN - BENFIELD HOLDINGS INC | — | — | 0 |
| AS30047US | SNAPFISH - SNAPFISH LLC | — | — | 0 |
| AS30093US | FI-AS-US - DBOT ATS llc | — | — | 0 |
| AS30121US | 24-7-AS-IDC-001 - 247.ai, Inc. | — | — | 0 |
| AS30123US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS30135US | MSFT-30135 - Microsoft Corporation | — | — | 0 |
| AS30143US | KBR-EC-ASN - KBR | — | — | 0 |
| AS30146US | TIBCO - TIBCO Software Inc. | — | — | 0 |
| AS30199US | LAN-1234 - Lantrax Inc. | — | — | 0 |
| AS30241US | AS-GLOTELL - GLOTELL US, CORP. | — | — | 0 |
| AS30342US | TENNESSEE EMERGENCY MANAGEMENT AGENCY - Tennessee Emergency Management Agency | — | — | 0 |
| AS30374US | MODWEST - Blackfoot Telephone Cooperative, Inc. | — | — | 0 |
| AS30392US | ADVISORY - The Advisory Board Company | — | — | 0 |
| AS30470US | TELEPERFORMANCE-TX - TELEPERFORMANCE USA | — | — | 0 |
| AS30487US | TTL-ASN-02 - Teza Technologies, LLC | — | — | 0 |
| AS30519US | CANYONS-ASN - VAIL RESORTS, INC. | — | — | 0 |
| AS30534US | PWC0550 - Public Works Commission | — | — | 0 |
| AS30561US | GE-MS002 - GE Precision HealthCare LLC | — | — | 0 |
| AS30599US | JACKHENRY-2 - Jack Henry & Associates, Inc. | — | — | 0 |
| AS30630US | EXPEDIA-VRBO-DC - EXPEDIA, INC | — | — | 0 |
| AS30675US | AKAMAI-AS - Akamai Technologies, Inc. | — | — | 0 |
| AS30686US | LVLT-30686-RESERVED-IPADMIN - Level 3 Parent, LLC | — | — | 0 |
| AS31749US | FKNC-AS - Fort Knox National Company | — | — | 0 |
| AS31831US | HUNT-REGIONAL-01 - Hunt Regional Healthcare | — | — | 0 |
| AS31860US | MACKAY-SHIELDS - MacKay Shields LLC | — | — | 0 |
| AS31866US | MOZILLA-OFL1 - Mozilla Corporation | — | — | 0 |
| AS31878US | JCVI-AS - J. Craig Venter Institute, Inc. | — | — | 0 |
| AS31901US | JOHNSON-COUNTY-LIBRARY - Johnson County Library | — | — | 0 |
| AS32131US | CALLWAY - Callway LLC | — | — | 0 |
| AS32252US | AS32252 - Boston Financial Data Services, Inc. | — | — | 0 |
| AS32311US | CLOUD-SYNCINC-1 - Cloud Sync Inc | — | — | 0 |
| AS32322US | ASN-YUKONWALTZ - YukonWaltz | — | — | 0 |