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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 | 21,173 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,245 |
| 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 | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,707 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,420 |
| — |
| — |
| 0 |
| AS17284US | VONAGE-17284 - Vonage Holdings, Inc. | — | — | 0 |
| AS17292US | INFOED-INTERNATIONAL - InfoEd International Inc | — | — | 0 |
| AS18452US | ALORICA - ALORICA INC | — | — | 0 |
| AS18469US | HP-POLY - HP Inc. | — | — | 0 |
| AS18529US | PLEXUS-SYSTEMS-US3 - ROCKWELL AUTOMATION Inc. | — | — | 0 |
| AS18581US | ALLIANZLIFE - Allianz Technology of America, Inc. | — | — | 0 |
| AS18586US | DOE-JUCE - Department of Energy, National Nuclear Security Administration | — | — | 0 |
| AS18706US | REALNETWORKS - REALNETWORKS LLC | — | — | 0 |
| AS18737US | VISANET-3 - VISA INTERNATIONAL SERVICE ASSOCIATION | — | — | 0 |
| AS18741US | SOUNDHOUND1 - SoundHound, Inc. | — | — | 0 |
| AS18823US | MEDICALERT - Medicalert Foundation | — | — | 0 |
| AS18861US | IVANET-BUE - IBASIS INC. | — | — | 0 |
| AS18879US | HR1 - HireRight LLC | — | — | 0 |
| AS18921US | ASHERECHICAGOEQUINIXCH3 - HERE North America LLC | — | — | 0 |
| AS19019US | AS-TIERP-19019 - TierPoint, LLC | — | — | 0 |
| AS19026US | XO-ASN14 - Verizon Business | — | — | 0 |
| AS19059US | CODERO-ASHBURN - Patmos Hosting, Inc. | — | — | 0 |
| AS19144US | UPMC-SUSQ - UPMC | — | — | 0 |
| AS19219US | WPS-AS19219 - Wisconsin Physicians Service Insurance Corp. | — | — | 0 |
| AS19227US | OK-INTERNET - Terra World, Inc. | — | — | 0 |
| AS19235US | HOSTING-COM - Ntirety, Inc. | — | — | 0 |
| AS19459US | SMSU-12-19459 - Siemens Medical Solutions USA, Inc. | — | — | 0 |
| AS19641US | TIHC-DC4 - TI Intermediate Holdings, LLC | — | — | 0 |
| AS19744US | EDUCATION-DEVELOPMENT-CENTER - Education Development Center Inc. | — | — | 0 |
| AS19828US | MARICOPA - Orbitel Communications, LLC | — | — | 0 |
| AS19897US | IQNT-BROAD-6-19897 - Inteliquent, inc. | — | — | 0 |
| AS19947US | VINS-AS-2 - Flexential Colorado Corp. | — | — | 0 |
| AS20000US | FULCRM-00 - Fulcrum Analytics, Inc | — | — | 0 |
| AS20039US | BAKERJK - Baker College | — | — | 0 |
| AS20092US | OWENS-MINOR - Owens and Minor | — | — | 0 |
| AS20153US | ARGUSHEALTH - ARGUS HEALTH SYSTEMS | — | — | 0 |
| AS20155US | OCO-1 - ORANGE COUNTY ONLINE | — | — | 0 |
| AS20172US | VGRS-AC27 - VeriSign Global Registry Services | — | — | 0 |
| AS20240US | VENTURAFOODS - VENTURA FOODS, LLC | — | — | 0 |
| AS20287US | OFINY - Invesco Group Services, Inc. | — | — | 0 |
| AS20301US | AS20301 - National Aeronautics and Space Administration | — | — | 0 |
| AS20403US | DSL-ONLY-PDX - DSL-Only, Inc | — | — | 0 |
| AS20415US | COUNCILROCKSD-PA - Council Rock School District | — | — | 0 |
| AS20433US | CENGAGE-MABOS - Cengage Learning, Inc. | — | — | 0 |
| AS21636US | PROMETRIC - Prometric, Inc. | — | — | 0 |
| AS21641US | VIRTUASYS-AMERICA - VIRTUASYS America, Inc. | — | — | 0 |
| AS21657US | FRTCC-LOUISANET - Foothills Rural Telephone Cooperative Corporation, Inc. | — | — | 0 |
| AS21776US | BLOSSOMTEL-AS - CHICKASAW TELEPHONE | — | — | 0 |
| AS21988US | HENDRICK-AUTO-GROUP - Hendrick Automotive Group | — | — | 0 |
| AS21991US | BASED-NETWORKING - BNS Services LLC | — | — | 0 |
| AS22053US | ARENAONE - Arena One, LLC | — | — | 0 |