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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. | 211.1M | 21,138 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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 | 3,674 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,417 |
| 256 |
| — |
| 1 |
| AS401823US | KIRKLAND-ELLIS-BR - Kirkland & Ellis LLP | 256 | — | 1 |
| AS397646US | MHU - Mars Hill University | 256 | 8.2K | 4 |
| AS36826US | INFINITY-TX - Infinity Broadband | 256 | 64 | 2 |
| AS4891US | PORTO-18-4891 - Port of Houston Authority of Harris County, Texas | 256 | — | 1 |
| AS63008US | SIMPLE-ASN - SIMPLE CLOUD SOLUTION LLC | 256 | 2 | 3 |
| AS19846US | UNION-COLLEGE - Union College | 256 | — | 1 |
| AS26917US | COVENTRY-ASN - The Coventry Group, Inc. | 256 | — | 1 |
| AS13615US | HVHS-AS - Heritage Valley Health System | 256 | — | 1 |
| AS14761US | SCS-ASN - SCS Financial Services, LLC | 256 | — | 1 |
| AS395770US | TEXARKANACOLLEGE - Texarkana College | 256 | 16 | 2 |
| AS36302US | AMSCOT-ASN - Amscot Corporation | 256 | — | 1 |
| AS399513US | MODA-PARTNERS-INC-01 - Moda Health | 256 | — | 1 |
| AS215740US | NETULU-EU Netulu Incorporated | 256 | 524.3K | 2 |
| AS16553US | EQUINIX-EC-MI - Equinix, Inc. | 256 | — | 1 |
| AS13954US | STAPLES - Staples, Inc | 256 | — | 1 |
| AS395806US | ONDECK-NYCOFFICE - Enova International, Inc. | 256 | — | 1 |
| AS396452US | LOUDOUN-WATER - Loudoun Water | 256 | — | 1 |
| AS401758US | DDBURR - DD BURR INVESTMENT COMPANY LLC | 256 | — | 1 |
| AS397881US | STINGERS - Stingers Inc. | 256 | 1 | 2 |
| AS40848US | FMFCU - Franklin Mint FCU | 256 | — | 1 |
| AS393999US | ALPINEWEB - AlpineWEB | 256 | — | 1 |
| AS970US | KEATONAGLAIR-EHRE-EIN - Keaton Alexander Guger Lair | 256 | 256 | 2 |
| AS55047US | NWF-ARIN - NATIONAL WILDLIFE FEDERATION | 256 | — | 1 |
| AS400680US | EVERFOX - EVERFOX Holdings LLC | 256 | — | 1 |
| AS14767US | IOLANI-ACCESS - 'Iolani School | 256 | — | 1 |
| AS10920US | JOHN-PAUL-CATHOLIC-UNIVERSITY - John Paul the Great Catholic University | 256 | — | 1 |
| AS11611US | ARCTICFOX - Arctic Fox Networks Inc | 256 | 4.1K | 2 |
| AS402106US | ACDEV - ACDev LLC | 256 | 258 | 4 |
| AS27394US | NHDSC-ORG - Northern Hospital District of Surry County | 256 | — | 1 |
| AS46216US | ICECONSULTING - Ice Consulting | 256 | — | 1 |
| AS393493US | LOTTEBIOLOGICS - Lotte Biologics USA, LLC | 256 | — | 1 |
| AS138938US | NTC-AS-INPE - NORTHERN TRUST CORPORATION | 256 | — | 1 |
| AS53287US | 5QCLOUD - 5Q Cloud | 256 | — | 1 |
| AS397765US | CCA - California College of the Arts | 256 | — | 1 |
| AS22478US | LS-POWER-ASN-01 - LS Power Development, LLC | 256 | — | 1 |
| AS400912US | REEF-ATLNET-FL-01 - Mailreef | 256 | — | 1 |
| AS19745US | OKTA - Okta, Inc. | 256 | 3 | 4 |
| AS54371US | METROINET - City of Roseville - Minnesota | 256 | — | 1 |
| AS17080US | CHUUNILAB-01 - Chuunilab Corp. | 256 | 1 | 2 |
| AS64282US | LINKSECURED-DEDICATED - LINKSECURED LLC | 256 | — | 1 |
| AS1646US | ABF - American Solutions for Business | 256 | — | 1 |
| AS398429US | GERBERS-POULTRY - Gerber Poultry, Inc. | 256 | — | 1 |
| AS398286US | LOCKARD-ASN-1 - Lockard, LLC. | 256 | — | 1 |
| AS400531US | WESTHOLT-ASN-01 - West Holt Memorial Hospital | 256 | — | 1 |
| AS54767US | RESTO-HARDWARE - Restoration Hardware, Inc. | 256 | — | 1 |
| AS12123US | SPOKANE-TRANSIT-01 - Spokane Transit Authority | 256 | — | 1 |