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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 512 |
| — |
| 2 |
| AS400393US | DIGITAL-EXAMPLE - Digital Example LLC | 512 | 256 | 3 |
| AS397776US | SUMMITBGP - County of Summit, Ohio | 512 | — | 2 |
| AS20182US | ESSENTGTY001 - ESSENT GUARANTY, INC. | 512 | 17 | 4 |
| AS18702US | DEGENET-AS - DEGE NETWORK TECHNOLOGIES LLC | 512 | — | 2 |
| AS1544US | DNIC-ASBLK-01534-01546 - Headquarters, USAISC | 512 | — | 2 |
| AS400349US | BOLD-HOWARDU - Apogee Telecom Inc. | 512 | — | 1 |
| AS395442US | HERITAGEBANK - Heritage Bank | 512 | — | 2 |
| AS32192US | EMPRISEBANK - EMPRISE BANK | 512 | — | 1 |
| AS32639US | SOLARNETONE - SolarNetOne, Inc. | 512 | 4.1K | 4 |
| AS16996US | TARRANTCOUNTYTX-GOV - Tarrant County | 512 | — | 2 |
| AS55049US | ASN-SCL - Samlyn Capital, LLC | 512 | — | 2 |
| AS400998US | AWN-SERVER-HOSTING - AWN Server Hosting, LLC | 512 | — | 2 |
| AS40490US | AS-AFILIAS-CTRL2 - Afilias, Inc. | 512 | 1 | 3 |
| AS31844US | HOLDBROTHERS - Tafferer Trading LLC | 512 | — | 2 |
| AS54287US | ASXCIE-SJC - Axcient, Inc | 512 | — | 1 |
| AS55257US | LOU1-STRATAPOINTE - Strata Pointe Technologies LLC | 512 | — | 1 |
| AS397645US | EPICGA-DC1-AS - Epic Games Inc. | 512 | — | 2 |
| AS54525US | AGT01 - APPLIED GLOBAL TECHNOLOGIES, LLC | 512 | — | 1 |
| AS397633US | WWE-CORP - WWE | 512 | — | 2 |
| AS13849US | BLOCKINETIC - Blockinetic LLC | 512 | 4.1K | 3 |
| AS397065US | US-NJ - Hillside (Shared Services US) LLC | 512 | — | 2 |
| AS30564US | LSUS - Louisiana State University in Shreveport | 512 | — | 2 |
| AS208757US | RelInfoAS RelINFO Solutions LLC | 512 | — | 1 |
| AS22230US | NETDOCUMENTS-US - NetDocuments | 512 | — | 2 |
| AS27363US | FOXPITT-KELTON - Swiss Re America Holding Corporation | 512 | — | 2 |
| AS19125US | ROCK-NET - Rockford Corporation | 512 | — | 2 |
| AS26503US | PHONECOM - Phone.com, Inc. | 512 | — | 2 |
| AS62787US | SNARKNET - Snark Holding Corp. | 512 | 2 | 4 |
| AS393971US | MLKJAMHC - Martin Luther King Jr., Healthcare Corporation | 512 | — | 2 |
| AS14707US | ABSHOU-ASN - American Bureau of Shipping | 512 | — | 2 |
| AS398381US | DC-ASN - Dallas, County Of | 512 | — | 2 |
| AS401596US | TAC-205-23 - Texas Association of Counties | 512 | — | 1 |
| AS25922US | CHS-1 - Acuity - CHS, LLC | 512 | — | 2 |
| AS393846US | ROUTER12-NETWORKS-UN - Router12 Networks LLC | 512 | — | 2 |
| AS400444US | MAGNERA-NA1 - Magnera Corporation | 512 | — | 2 |
| AS32579US | CITY-OF-VALLEJO - City of Vallejo, A municipal corporation | 512 | — | 2 |
| AS25770US | SHRM - Society for Human Resource Management | 512 | — | 2 |
| AS26705US | WBNET-01 - Whatabrands LLC | 512 | — | 2 |
| AS18812US | NEWWAVECOMM - New Wave Communications | 512 | — | 2 |
| AS23082US | MPHI - Michigan Public Health Institute | 512 | — | 2 |
| AS13888US | BEARCREEK-AS - Bear Creek Operations Inc | 512 | — | 2 |
| AS39618US | HostCram HostCram LLC | 512 | 256 | 3 |
| AS398943US | LMS-ASN-01 - Liberator Medical Supply, Inc. | 512 | — | 2 |
| AS31752US | HEI-30-31752 - Heartland Express, Inc. of Iowa | 512 | — | 2 |
| AS394171US | ONPOINTCCU - OnPoint Community Credit Union | 512 | — | 2 |
| AS21974US | FMIC - Frankenmuth Mutual Insurance Company | 512 | — | 2 |