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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) | 227.7M | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,133 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,235 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48.8M | 3,614 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,941 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,429 |
| TYCOIS - ADT Security Services, Inc. |
| 2.6K |
| — |
| 10 |
| AS21US | RAND - The RAND Corporation | 2.6K | — | 10 |
| AS54702US | QUICKMEG - QuickMeg Inc | 2.6K | — | 4 |
| AS11070US | META-AS - Metanet Communications, Inc. | 2.6K | — | 10 |
| AS397593US | ASGRICE01 - Grice Computer Consulting | 2.6K | — | 4 |
| AS26814US | ASN-COBNET - City of Birmingham | 2.6K | — | 2 |
| AS20085US | UAKRON - The University of Akron | 2.6K | — | 5 |
| AS14610US | INTEGRAL - Integral Development Corp. | 2.6K | — | 10 |
| AS393240US | BTWI-WIRELESS-INTERNET - BTWI Wireless Internet LLC | 2.6K | — | 3 |
| AS397790US | IMU - Indianola Municipal Utilities | 2.6K | 65.5K | 5 |
| AS20231US | TWC-20231-NE-KS-C3 - Charter Communications Inc | 2.6K | 288 | 4 |
| AS25629US | ACPS-8-ASN - Albemarle County Public Schools | 2.6K | — | 6 |
| AS20234US | HNTB - HNTB CORPORATION | 2.6K | — | 6 |
| AS19606US | NLSNMEDIA - THE NIELSEN COMPANY (US), LLC | 2.6K | — | 9 |
| AS32688US | GOLDEN1-CU-NET - THE GOLDEN 1 CREDIT UNION | 2.6K | — | 10 |
| AS393294US | MEGATEL-NETCOM - Megatel Netcom Corporation | 2.6K | 257 | 12 |
| AS46970US | ALLBANDCOMMUNICATIONS - Allband Communications Cooperative | 2.6K | — | 6 |
| AS13666US | VRIS-AS-BLOCK - Verizon Business | 2.6K | 1 | 10 |
| AS6312US | TRIOTELASN - TrioTel Communications, Inc. | 2.6K | — | 10 |
| AS63104US | MOHAWK-NETWORKS - Mohawk Networks LLC | 2.6K | — | 3 |
| AS36844US | SAWS---SAN-ANTONIO-WATER-SYSTEM - San Antonio Water System | 2.6K | — | 10 |
| AS397370US | ACADIANA-WIRELESS - ACADIANA WIRELESS LLC | 2.6K | — | 6 |
| AS20398US | CNCS-AS - Controlled Networks and Communications Solutions, Inc. | 2.6K | — | 10 |
| AS22687US | L3NET - L3 NETWORKS INC | 2.6K | — | 10 |
| AS11990US | UNLIMITEDNET - Unlimited Net, LLC | 2.6K | 4.2K | 5 |
| AS393821US | LISMORE-COOPERATIVE-TELEPHONE - Lismore Cooperative Telephone Company | 2.6K | — | 2 |
| AS11805US | ENNWISE-AS - Ennwise | 2.6K | 2 | 9 |
| AS53294US | FOX-NEWS-CHANNEL-NETWORK - Fox News Channel | 2.6K | — | 9 |
| AS398879US | SUSQ-BROADBAND - Susquehanna Broadband, LLC | 2.6K | — | 4 |
| AS33489US | COMCAST-33489 - Comcast Cable Communications, LLC | 2.6K | 34 | 44 |
| AS20279US | ESC-REGION12 - Education Service Center Region 12 | 2.6K | — | 3 |
| AS393258US | SAFETYNET1 - Safety NetAccess, Inc. | 2.6K | — | 2 |
| AS396944US | UNFI - UNFI | 2.6K | — | 7 |
| AS32393US | BDN - Brown Dog Networks | 2.6K | — | 4 |
| AS22181US | IVNET - IV NET, LLP | 2.6K | — | 4 |
| AS394723US | FCS-AS-1 - Fulton County Schools | 2.6K | — | 3 |
| AS394122US | DEBEVOISE - Debevoise and Plimpton LLP | 2.6K | — | 9 |
| AS21509US | APOLLONYC - Apollo Management, L.P. | 2.6K | — | 10 |
| AS62935US | DNL-AS-001 - Discovery Networks International LLC | 2.6K | — | 2 |
| AS30533US | THEBOE-30533 - The Boeing Company | 2.6K | — | 10 |
| AS21691US | TMCC-2 - Toyota Motor Credit Corporation | 2.6K | — | 8 |
| AS10255US | SINISTER - Sinister and Solitary | 2.6K | 257 | 9 |
| AS18776US | VALASSIS - Valassis Communications, Inc. | 2.6K | — | 3 |
| AS25984US | MEDSTARHEALTH - MedStar Health | 2.6K | — | 9 |
| AS4232US | EDEN-AS - Adhesive Media, Inc. | 2.6K | — | 10 |
| AS22691US | ISPNET-1 - ISPnet, Inc. | 2.6K | — | 8 |
| AS1603US | HSU-AS - Henderson State University | 2.6K | — | 3 |