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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 | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,240 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,656 |
| 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 | 4,379 |
| 1K |
| — |
| 4 |
| AS46351US | BBHSOLUTIONS - BBH Solutions Inc. | 1K | — | 1 |
| AS21937US | EEL-LTL - Estes Express Lines | 1K | — | 4 |
| AS53484US | WL-NA - Williams Lea LLC | 1K | — | 4 |
| AS64238US | ASN-OARC - DNS-OARC | 1K | 2 | 5 |
| AS40834US | CHARLES-RIVER-LABORATORIES-INC-SHR - Charles River Laboratories, Inc. | 1K | — | 1 |
| AS12204US | SCN-NET - SCN Research, Inc. | 1K | — | 3 |
| AS53675US | HWB-ASN-53675 - Hancock Whitney Bank | 1K | — | 4 |
| AS33349US | THE-BANK-OF-NEW-YORK-MELLON-CORPORATION-AS33349 - The Bank of New York Mellon Corporation | 1K | — | 1 |
| AS62714US | PHILLIPSDATA - Phillips Data, Inc. | 1K | 5 | 9 |
| AS13958US | PZG-FL - THE RIDGEROCK GROUP, LLC | 1K | — | 1 |
| AS399156US | SECURITYSERVICES - Vercara, LLC | 1K | — | 2 |
| AS397304US | MTOR1-MEDIA-566 - MediaNet, Inc | 1K | — | 3 |
| AS395003US | ABE-COMMERCE - AB E-Commerce, LLC | 1K | — | 4 |
| AS62541US | VSH-ASN - Vishay Intertechnology, Inc. | 1K | — | 3 |
| AS401800US | ILSOS - Illinois Secretary of State | 1K | — | 1 |
| AS14771US | CITCO-ASN-1 - Citco Technology Management, Inc. | 1K | — | 4 |
| AS26156US | VERUS - Verus, LLC | 1K | 65.5K | 2 |
| AS13324US | EPC-INC - Executive Personal Computers Inc. | 1K | — | 2 |
| AS62872US | CBTS-AS-DC2 - Cincinnati Bell Technology Solutions | 1K | — | 1 |
| AS397965US | COUNTY-OF-TRAVIS-1 - Travis County, Texas | 1K | — | 4 |
| AS19421US | LANDSEND - Lands' End, Inc. | 1K | — | 3 |
| AS398430US | SPEEDWAVZ - Speedwavz LLP | 1K | — | 4 |
| AS396411US | MICROPACT-ASH-DC - MicroPact Global, Inc | 1K | — | 4 |
| AS14753US | UNIVE-80 - Universal Consulting | 1K | — | 4 |
| AS22101US | CPIL-ASN - Cyber Point International, LLC | 1K | — | 4 |
| AS138947US | NTC-AS-APC - NORTHERN TRUST CORPORATION | 1K | — | 3 |
| AS12073US | CCSINET-1 - Contemporary Computer Services Inc. | 1K | — | 4 |
| AS55277US | PINAL-AS - Pinal County Arizona | 1K | — | 1 |
| AS32509US | SEDGWICK-COUNTY-AS - Sedgwick County Information Services | 1K | — | 1 |
| AS40640US | CAYUSEHOLDINGS-PEN-01 - CAYUSE TECHNOLOGIES LLC | 1K | — | 1 |
| AS4901US | CAAREN - The George Washington University | 1K | 16 | 2 |
| AS22038US | PRIME-SGF1 - New Prime, Inc. | 1K | — | 4 |
| AS26260US | TMTAS01 - The Media Trust | 1K | — | 3 |
| AS33516US | WPP-ET-CAMPUS-3WTC - The Ogilvy Group, LLC | 1K | — | 3 |
| AS31637US | MECUK-AS WPP Group USA, Inc. | 1K | — | 3 |
| AS15131US | DATASERV - DATASERV | 1K | — | 3 |
| AS206219US | widevoice-fra WideVoice, LLC | 1K | — | 3 |
| AS398900US | RENCI-FABRIC - University of North Carolina at Chapel Hill | 1K | 4.1K | 2 |
| AS32795US | HEARST-SERVICE-CENTER - HEARST CORPORATION | 1K | — | 3 |
| AS14300US | NAF-SNAP7 - New American Funding | 1K | — | 3 |
| AS399362US | SHIFT4-CORP - SHIFT4 PAYMENTS, LLC | 1K | — | 3 |
| AS402425US | QLL-AS-001 - QOREXA | 1K | — | 4 |
| AS21705US | HOUDINI-WCGB - Houdini Inc. | 1K | 1 | 5 |
| AS400931US | ROCKOAK-ASN - Rock Oak, LLC | 1K | — | 3 |
| AS36392US | SMART-CITY-VBCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1K | — | 3 |
| AS54491US | BP-47-54491 - Bright Packet, Inc. | 1K | — | 1 |