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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 |
| 4.4K |
| — |
| 17 |
| AS32101US | ASN-KLYS - Kelly Supply Company | 4.4K | — | 17 |
| AS14369US | NMAX - Nmax | 4.4K | 65.5K | 18 |
| AS17242US | UNIPAC - UNIPAC Service Corporation | 4.4K | 256 | 18 |
| AS22077US | RENAISSANCE-TECH - Renaissance Technologies Corp. | 4.4K | — | 11 |
| AS17098US | BROWNRICE-INTERNET-1 - Brownrice Internet, Inc. | 4.4K | 65.5K | 10 |
| AS399597US | BOLD-WJC - Apogee Telecom Inc. | 4.4K | 1 | 3 |
| AS26405US | HDCS - HORIZON DATA SOLUTIONS, LLC | 4.4K | — | 13 |
| AS30663US | ISPEED-WIRELESS-INC - ISpeed Wireless Inc., | 4.4K | — | 2 |
| AS46479US | PREFERRED-NETWORKS - Pyramid.Net | 4.4K | — | 5 |
| AS53597US | HOYOS-CONSULTING-LLC - Hoyos Consulting LLC | 4.4K | 78.3K | 13 |
| AS399200US | AYVA - Ayva | 4.4K | 4.1K | 19 |
| AS400674US | CLAY-COUNTY-CONNECT - Clay County Connect, Inc | 4.4K | 65.5K | 3 |
| AS1406US | MOTOROLA-MOBILITY - Motorola Inc | 4.4K | — | 11 |
| AS46997US | NATOLAB - Black Mesa Corporation | 4.4K | 1.2K | 38 |
| AS396312US | FHC - Richmond Memorial Hospital | 4.4K | — | 2 |
| AS14690US | PEORIAUSD11 - Peoria Unified School District | 4.1K | — | 1 |
| AS54979US | ZEECON - Zeecon Wireless Internet L.L.C. | 4.1K | — | 1 |
| AS19856US | BRAZOSPORT-COLLEGE - Brazosport College | 4.1K | — | 1 |
| AS33254US | OMERESA - Ohio Mid Eastern Regional Education Service Agency | 4.1K | — | 9 |
| AS40200US | ASN-MUNSON-CHARTER-ATT - Munson Healthcare | 4.1K | — | 2 |
| AS26165US | CHSCC - Chattanooga State Community College | 4.1K | — | 2 |
| AS19472US | CAROLLO-ENGINEERS - Carollo Engineers | 4.1K | — | 6 |
| AS27403US | APA-CTY - Apache County Board of Supervisors | 4.1K | — | 1 |
| AS53398US | BERKA-ASN - Berkadia Commercial Mortgage LLC | 4.1K | — | 2 |
| AS401377US | PUMASERVNET - PUMA SERVERS LLC | 4.1K | — | 1 |
| AS12273US | TRUELINK - Transunion Interactive, Inc. | 4.1K | — | 12 |
| AS395643US | CORONA-NORCOUSD - Corona-Norco Unified School District | 4.1K | — | 16 |
| AS13788US | USCOURTS - US Courts | 4.1K | — | 13 |
| AS23339US | MU-ASN - Marymount University | 4.1K | — | 6 |
| AS55247US | IVALUA - Ivalua Inc. | 4.1K | — | 12 |
| AS11889US | IVANET-DAL - iBasis, Inc. | 4.1K | 256 | 14 |
| AS19162US | MBI-AS-1 - The Moody Bible Institute of Chicago | 4.1K | — | 1 |
| AS11109US | SAISD-1 - State of Alabama, Office of Information Technology | 4.1K | — | 16 |
| AS19624US | SERVERROOM - Data Room, Inc | 4.1K | 16.4K | 22 |
| AS209622US | upress-drb uPress Inc | 4.1K | 6 | 21 |
| AS21854US | DP-IS - Digital Passage, Inc. | 4.1K | 65.5K | 17 |
| AS401288US | CL-BROADBAND - C&L Broadband Connect, LLC | 4.1K | 65.5K | 2 |
| AS32694US | HBCOMM - H&B Communications Inc. | 4.1K | — | 15 |
| AS11061US | ANTEL-NET - Antelecom, Inc. | 4.1K | — | 1 |
| AS7384US | INTUIT - Intuit Inc. | 4.1K | — | 16 |
| AS20228US | NTUA - Navajo Tribal Utility Authority | 4.1K | 65.5K | 4 |
| AS397608US | HCAS-4 - Hanson Communications, Inc. | 4.1K | — | 6 |
| AS33045US | HGST-AS - Western Digital Corporation | 4.1K | — | 11 |
| AS31869US | LL-BEAN - LL Bean | 4.1K | — | 6 |
| AS12234US | UUNET-INT - Verizon Business | 4.1K | — | 7 |
| AS22247US | LETOURNEAUUNIVERSITY - LeTourneau University | 4.1K | — | 1 |