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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 | 24,358 |
| 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 |
| 233 |
| 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 | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,342 |
| SEI - SEI Investments |
| 768 |
| — |
| 3 |
| AS36579US | WESH-TV - Hearst-Argyle Television, Inc. | 768 | — | 3 |
| AS54226US | SUNY-OPTOMETRY - SUNY College of Optometry | 768 | — | 3 |
| AS14598US | YCP-ASN - York College of Pennsylvania | 768 | 4.1K | 4 |
| AS393958US | CUSHWAKE-AMER2 - Cushman & Wakefield | 768 | — | 3 |
| AS401291US | ROBINSONHSS - RobinsonHSS | 768 | 256 | 3 |
| AS398361US | HORIZON-WIRELESS - Horizon Satellite, LLC | 768 | — | 2 |
| AS23384US | REEDTECH - Reed Technology and Information Services, Inc. | 768 | — | 3 |
| AS7170US | MANHA-20 - Manhattan West, LLC | 768 | — | 3 |
| AS4892US | APPLIEDUK-CLOUD-04 - APPLIED SYSTEMS, INC | 768 | — | 3 |
| AS25644US | LINUXSQUARE - Linux Square | 768 | 768 | 6 |
| AS11978US | VL-221-11978 - Vegas.com, LLC | 768 | — | 3 |
| AS17096US | SUMMITRACING - SUMMIT RACING | 768 | — | 3 |
| AS26805US | FHLBSF - Federal Home Loan Bank of San Francisco | 768 | — | 3 |
| AS22839US | MIMOWORKS-01 - Mimoworks Internet LLC | 768 | 256 | 3 |
| AS22172US | MITCHELL-INTERNATIONAL-DC2 - Mitchell International | 768 | — | 3 |
| AS26808US | UTICA-COLLEGE - Utica University | 768 | — | 3 |
| AS54571US | COOLEY - Cooley LLP | 768 | — | 3 |
| AS22434US | FUC-AS-22434 - Finastra USA Corporation | 768 | — | 3 |
| AS5779US | YAHOO-DNB - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS27451US | USO-ASN - US Oncology, Inc. | 768 | — | 3 |
| AS46568US | HORMELFOODS - Hormel Foods Corporation | 768 | — | 3 |
| AS53624US | VORYS-SATER-SEYMOUR-AND-PEASE-LLP - Vorys,Sater,Seymour and Pease LLP | 768 | — | 2 |
| AS40271US | SFMIX-TRANSIT - San Francisco Metropolitan Internet Exchange (SFMIX) | 768 | 1 | 3 |
| AS395521US | AOCCONNECT - AOC Connect LLC | 768 | — | 3 |
| AS395155US | JMSMUCKER - The J. M. Smucker Co. | 768 | — | 3 |
| AS32661US | OLD-NATIONAL-BANCORP - Old National Bancorp | 768 | — | 2 |
| AS11954US | BAYVIEW-FINANCIAL-INETOPS - Bayview Financial, LP | 768 | — | 3 |
| AS18841US | TRIMBLE-SNVL - Trimble, Inc. | 768 | 2 | 4 |
| AS19853US | ORANGEHOST - OrangeHost | 768 | — | 3 |
| AS25906US | IVGNCB - Life Technologies Corp. | 768 | — | 3 |
| AS22961US | ATHERAL - Atheral LLC | 768 | — | 3 |
| AS401398US | POLY-GAMMA - Poly-Gamma LLC | 768 | — | 3 |
| AS188US | SAIC-AS-188 - SAIC | 768 | — | 3 |
| AS17215US | AMEREN-AS3 - Ameren Corp. | 768 | — | 3 |
| AS33504US | FNBP-2-HERM - FIRST NATIONAL BANK OF PA | 768 | — | 3 |
| AS54321US | COMPUTEX - ENETSolutions L.L.C | 768 | — | 3 |
| AS18760US | AS18760 - City of Rancho Cucamonga | 768 | — | 3 |
| AS32834US | CHILDRENS-MEDICAL-CENTER - Children's Medical Center of Dallas | 768 | — | 3 |
| AS62607US | JUNONET - Juno Networks | 768 | — | 3 |
| AS400806US | CLEARLYIP-CA - Clearly IP Inc | 768 | 1 | 3 |
| AS399939US | BHE-GTS - BHE GT&S, LLC | 768 | — | 3 |
| AS401943US | HSE-ARIN-01 - Hornetsecurity | 768 | — | 2 |
| AS53699US | PANAMAX-ASN - Panamax Inc | 768 | — | 3 |
| AS1325US | ANSBB-ASNNET-1 - Verizon Business | 768 | — | 3 |
| AS46178US | IVIT-1 - Integrity Virtual IT, Inc. | 768 | — | 2 |
| AS399082US | MOWINET-ASN - Mosier WiNet LLC | 768 | — | 3 |