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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,285 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,310 |
| 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.
32,244 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,356 |
| CNBT-AS - THE CITY NATIONAL BANK OF TAYLOR |
| 1.3K |
| — |
| 5 |
| AS400456US | DREAMWIRE - ITDreamwire | 1.3K | — | 2 |
| AS397934US | AAILLC-1 - Latitude AI LLC | 1.3K | — | 5 |
| AS40588US | WELLSPAN-WOC-AS - York Hospital | 1.3K | — | 5 |
| AS399545US | CCTC-ASN1 - Coleman County Telephone Cooperative, Inc. | 1.3K | — | 2 |
| AS63299US | PATHWAYS - Pathways Health and Community Support LLC | 1.3K | — | 5 |
| AS33261US | PHRG - Power Home Remodeling LLC | 1.3K | — | 5 |
| AS395055US | DOCUSIGN-CORP-IT - DocuSign | 1.3K | — | 2 |
| AS400807US | BMU-GW-01 - BRYAN MUNICIPAL UTILITIES | 1.3K | — | 5 |
| AS7219US | ASNTULIX - Tulix Systems, Inc. | 1.3K | 65.5K | 3 |
| AS31867US | SCHWARTZNET - Schwartz Networks Limited Liability Company | 1.3K | 4.1K | 27 |
| AS27526US | ENDAI-NETWORKS-ASN - Endai Corporation | 1.3K | — | 4 |
| AS394188US | PRIMEVOX - PrimeVOX Communications, LLC | 1.3K | — | 5 |
| AS395474US | CITY-OF-PLANO-TX - City of Plano, Texas | 1.3K | — | 5 |
| AS54420US | COCC-ISP1 - COCC | 1.3K | — | 5 |
| AS1326US | ANSBB-ASNNET-1 - Verizon Business | 1.3K | — | 5 |
| AS13673US | FAIRPO-3 - Fidium | 1.3K | — | 5 |
| AS54572US | AS-ASN-2 - Nasdaq, Inc. | 1.3K | — | 3 |
| AS399377US | DESERTGATE - DesertGate Internet LLC | 1.3K | — | 4 |
| AS207134US | PHOENIXNAP-SRB PHOENIX NAP, LLC. | 1.3K | 256 | 4 |
| AS32546US | SMARSH - Smarsh Inc | 1.3K | — | 4 |
| AS954US | TS-1316-954 - TMTG | 1.3K | — | 5 |
| AS33460US | WAUBONSEE-COMMUNITY-COLLEGE - Waubonsee Community College | 1.3K | — | 4 |
| AS22971US | SVHHSTOSF-NET - ST. VINCENT HOSPITAL OF THE HOSPITAL SISTERS OF THE THIRD ORDER OF ST. FRANCIS | 1.3K | — | 3 |
| AS30334US | PARK-NATIONAL-CORP - The Park National Corporation | 1.3K | — | 5 |
| AS400899US | CYCLONESERVERS-LLC - Cyclone Servers | 1.3K | 258 | 8 |
| AS397582US | WOW - WOW-World of Wireless | 1.3K | — | 5 |
| AS62968US | AS-CMC - Central Michigan Communication, Co. | 1.3K | — | 2 |
| AS11940US | DIRECTSCOM - Direct Supply, Inc. | 1.3K | — | 4 |
| AS11925US | RUESCH-CONSULTING - Ruesch Consulting, LLC | 1.3K | 65.5K | 3 |
| AS400506US | BAIAS - Black Apple | 1.3K | — | 5 |
| AS14649US | COSI-US - Contengent Online Systems Inc | 1.3K | — | 2 |
| AS3529US | DNIC-AS-03529 - United States Department of Defense (DoD) | 1.3K | — | 5 |
| AS393506US | MYCOMUS-AS - MY.COM US, INC. | 1.3K | — | 4 |
| AS40525US | CHOC - CHILDRENS HOSPITAL OF ORANGE COUNTY | 1.3K | — | 5 |
| AS396046US | PNFP - Pinnacle Financial Partners, Inc. | 1.3K | — | 3 |
| AS33683US | UIWTX - University of the Incarnate Word | 1.3K | — | 2 |
| AS1225US | NTTA-1225 - NTT America, Inc. | 1.3K | 1 | 3 |
| AS7915US | DAYTONA-STATE-COLLEGE - Daytona State College Inc | 1.3K | — | 5 |
| AS35934US | REPUBLIC-SERVICES-INC - Republic Services Inc. | 1.3K | — | 2 |
| AS393247US | PARKVIEW-HEALTH - Parkview Hospital | 1.3K | — | 2 |
| AS30307US | KSMNW-NA-ASN - Kasumi Networks NA LLC | 1.3K | 3 | 5 |
| AS63051US | CRITICALHOSTING-USA - Critical Hosting Solutions LLC | 1.3K | 65.5K | 6 |
| AS19717US | MAINSTREAMDATA-375 - Mainstream Data, Inc. | 1.3K | — | 4 |
| AS31989US | FFH-AS - Fiber Fast Homes, LLC | 1.3K | — | 5 |
| AS19577US | CASTRO-TELECOM - CASTRO TELECOM LLC | 1.3K | — | 2 |
| AS394218US | VXI - VXI Global Solutions, LLC | 1.3K | — | 4 |