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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 23,999 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,154 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 231 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,882 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,990 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,318 |
| — |
| — |
| 0 |
| AS2973US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS4083US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4065US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS1966US | DNIC-AS-01966 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS3980US | UTELFLA - Sprint/United Telephone-Florida | — | — | 0 |
| AS3760US | TX-DEPT-AGR - Texas Department of Agriculture | — | — | 0 |
| AS1639US | CRTA-ASN1 - C.R.S.T. Telephone Authority | — | — | 0 |
| AS1669US | ANS-BB2 - Verizon Business | — | — | 0 |
| AS32865US | MONTANA-OPTICOM-AS32865 - Montana Opticom, LLC | — | — | 0 |
| AS32811US | COPELAND - Copeland LP | — | — | 0 |
| AS32429US | ATAENG - ATA Engineering, Inc. | — | — | 0 |
| AS32127US | AYVA - Ayva | — | — | 0 |
| AS32122US | SYNECTICSFMD2004 - Synectics for Management Decisions, Inc. | — | — | 0 |
| AS32947US | WEST-B2B-DEN01 - West Technology Group, LLC | — | — | 0 |
| AS33518US | INGENIX - Ingenix, Inc. | — | — | 0 |
| AS33077US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS46270US | AS46270 - ThyssenKrupp North America, Inc. | — | — | 0 |
| AS62727US | PLEXICOMM - Plexicomm, LLC | — | — | 0 |
| AS40315US | VIASAT-3 - ViaSat,Inc. | — | — | 0 |
| AS62496US | ARVIG-62496 - Arvig Enterprises Inc. | — | — | 0 |
| AS60939US | ASN-FIBREBAY Fibrebay Network LLC | — | — | 0 |
| AS50892US | LL-946-50892 - HORYS TECHNOLOGIES | — | — | 0 |
| AS54917US | LAKESPC - Lakes PC Help, LLC | — | — | 0 |
| AS205488US | ISC-BBU1 Internet Systems Consortium Inc. | — | — | 0 |
| AS204191US | sobesky Miss Group INC | — | — | 0 |
| AS63373US | NFI-ASN-01 - Net Friends, Inc. | — | — | 0 |
| AS131477US | PSC-594-131477 - Prime Security Corp. | — | — | 0 |
| AS36660US | SAMUEL-MERRITT-UNIVERSITY - Samuel Merritt College | — | — | 0 |
| AS4363US | WORLDRAMP-ASNAME - World Ramp Inc. | — | — | 0 |
| AS4311US | WINC - Winfield Communications | — | — | 0 |
| AS4227US | TCCGI-AS - The Chesapeake Computer Group, Incorporated | — | — | 0 |
| AS5145US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5179US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5116US | OP-TRANS-CHICAGO - openpipes | — | — | 0 |
| AS5039US | TECNET2 - Tecnet | — | — | 0 |
| AS36310US | LAKESHORE-VENTURES-ELK-GROVE - LakeShore Capital LLC | — | — | 0 |
| AS40219US | CHARTER-40219-NA - Charter Communications LLC | — | — | 0 |
| AS397381US | DTL-ASN1 - Dealer Tire, LLC | — | — | 0 |
| AS36630US | YGTLD - VeriSign Global Registry Services | — | — | 0 |
| AS35896US | OPTUMINSIGHT-FRANKLIN - UnitedHealth Group Incorporated | — | — | 0 |
| AS36113US | UTL-42-36113 - Netopia | — | — | 0 |
| AS40582US | VUDU-ASN-2 - VUDU, Inc. | — | — | 0 |
| AS46237US | PENNSBURY - Pennsbury School District | — | — | 0 |
| AS62764US | ICS-OAK-BROOK-HQ - Inland Computer Services Inc | — | — | 0 |
| AS40579US | TWRS-DAL - Towerstream I, Inc. | — | — | 0 |
| AS40349US | ISAGENIX - Isagenix International LLC | — | — | 0 |