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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,247 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,189 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,901 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,010 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,222 |
| 2.3K |
| — |
| 6 |
| AS395566US | OMNI - Orbital Media Networks, Inc. | 2.3K | — | 2 |
| AS53526US | THECLO-ASN - THE CLOROX COMPANY | 2.3K | — | 9 |
| AS13702US | INGRAM-BOOK-GROUP - Ingram Book Group | 2.3K | — | 6 |
| AS20100US | INFRADAPT - Infradapt | 2.3K | — | 8 |
| AS32328US | ALASCOM-IP-MANAGED-NETWORK - Alascom, Inc. | 2.3K | — | 6 |
| AS11302US | BSTAR - Brightstar Global Solutions Corporation | 2.3K | — | 9 |
| AS397269US | FLEX-DMF - Flextronics International USA, Inc. | 2.3K | — | 5 |
| AS54294US | ECC-LINK-001 - ERIE COMMUNITY COLLEGE | 2.3K | — | 9 |
| AS29955US | WASHBURN-UNIVERSITY - Washburn University | 2.3K | — | 2 |
| AS16876US | ICANN-DC - ICANN | 2.3K | 3 | 9 |
| AS26787US | NM-01 - Northwestern Mutual Life Insurance Company | 2.3K | 2 | 4 |
| AS394053US | NAICWEB - National Association of Insurance Commissioners | 2.3K | — | 2 |
| AS7280US | YAHOO-FC - Yahoo Holdings Inc. | 2.3K | 9 | 18 |
| AS62571US | IMPERVA-INC-US-SJ-COLO - IMPERVA INC | 2.3K | 4 | 13 |
| AS22056US | SITEL-OMA - Sitel | 2.3K | 2 | 11 |
| AS30113US | DEMATIC-US - Dematic Corp. | 2.3K | — | 6 |
| AS47065US | PEERING-RESEARCH-TESTBED-USC-UFMG-AS47065 - USC / UFMG PEERING Research Testbed | 2.3K | 154 | 160 |
| AS393836US | GSG - Grant Street Group, INC. | 2.3K | — | 5 |
| AS11621US | REYESHOLDINGSLLC - Reyes Holdings, L.L.C. | 2.3K | — | 9 |
| AS393574US | ONPOINT-BROADBAND - OnPoint Broadband | 2.3K | — | 2 |
| AS40780US | VASPIAN-BFLO - Vaspian LLC | 2.3K | — | 2 |
| AS63452US | VELOCIHOST - Velocihost Inc. | 2.3K | 769 | 10 |
| AS32158US | BERKLEY-TECHNOLOGY-SERVICES - Berkley Technology Services LLC | 2.3K | — | 9 |
| AS212879US | IMO PageBites Inc | 2.3K | — | 9 |
| AS397903US | SPRINGCOM-01 - Springcom | 2.3K | 65.5K | 3 |
| AS21857US | PROHEALTH-CARE - ProHealth Care Inc. | 2.3K | — | 6 |
| AS13535US | NING - Ning Interactive, Inc. | 2.3K | 1 | 7 |
| AS19065US | LRS - Levi, Ray & Shoup, Inc. | 2.3K | 256 | 10 |
| AS11187US | RICHWEB - Richweb, Inc | 2.3K | 4.1K | 3 |
| AS30459US | AS-SLHC - St. Luke's Roosevelt Hospital Center | 2.3K | — | 8 |
| AS14060US | BKD-AS - Brookdale Senior Living Inc | 2.3K | — | 4 |
| AS19032US | WLETC - Wireless Etc Inc. | 2.3K | 65.5K | 10 |
| AS32945US | TECONECTAMOS - Tekwerks Internet | 2.3K | 4.1K | 8 |
| AS25671US | AIRENET-NUEVO-CA - Wholesale Air-time Inc. | 2.3K | 8 | 17 |
| AS32382US | ATOS-CARROLLTON - Atos IT Solutions and Services Inc | 2.3K | — | 9 |
| AS26100US | NOAA-PACIFIC-REGION-CENTER - National Oceanic and Atmospheric Administration | 2.3K | — | 3 |
| AS14352US | SSUITES-AS1 - ERP Suites | 2.3K | — | 9 |
| AS25692US | AEGISINFOSYS - AEGIS INFORMATION SYSTEMS INC | 2.3K | — | 4 |
| AS22215US | BHSU - Black Hills State University | 2.3K | — | 8 |
| AS402072US | OZONTI-NETWORK-LLC - OZONTI NETWORK LLC | 2.3K | 258 | 12 |
| AS400830US | BAYFIELD-WIRELESS - Bayfield Wireless | 2.3K | 16 | 25 |
| AS22134US | PETSMART - PetSmart LLC | 2.3K | — | 4 |
| AS36675US | CCPS-1 - Collier County Public Schools | 2.3K | — | 4 |
| AS63420US | NETACTUATE - NetActuate, Inc | 2.3K | 9 | 18 |
| AS13652US | HORIZON-BLUE-CROSS-BLUE-SHIELD-OF-NJ - HORIZON BLUE CROSS BLUE SHIELD OF NJ | 2.3K | — | 9 |
| AS40954US | JMFAMILY - JM Family Enterprises Inc. | 2.3K | — | 9 |