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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. | 211.1M | 21,138 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,674 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,417 |
| 256 |
| — |
| 1 |
| AS54043US | GOZFLY-LLC - GOZFLY LLC | 256 | 65.5K | 2 |
| AS401052US | KONVERGENCE-TECHNOLOGIES - Konvergence Technologies | 256 | — | 1 |
| AS27173US | WEEMO-AS-1 - Sightcall Inc. | 256 | — | 1 |
| AS401064US | SUDOBLOCK - sudoblock | 256 | — | 1 |
| AS397396US | DATA-CENTER-INC-ASN-01 - Data Center, Inc. | 256 | — | 1 |
| AS21749US | ALBERICI-GROUP - Alberici Group, Inc. | 256 | — | 1 |
| AS40494US | VW-01 - VITALITY WORKS, INC. | 256 | — | 1 |
| AS393594US | KPGO - United States Naval Observatory | 256 | — | 1 |
| AS46481US | TOPCO - Topco Associates LLC | 256 | — | 1 |
| AS46767US | SMLWIRELESS - SMLW, Inc. | 256 | 16.4K | 2 |
| AS397289US | PARKER-UNIVERSITY - Parker University | 256 | — | 1 |
| AS46338US | CPCL-ASN1 - CPC Logistics, Inc | 256 | — | 1 |
| AS20230US | CARRINGTON-MS-LLC-2007 - Carrington Mortgage Holdings, LLC | 256 | 1 | 2 |
| AS29820US | VSI - Visionet Systems Inc. | 256 | — | 1 |
| AS400543US | NHC-BGP-AS - NEWTON HEALTHCARE CORPORATION | 256 | — | 1 |
| AS401728US | FCFCU - First Commonwealth Federal Credit Union | 256 | 1 | 2 |
| AS46743US | PHILANDER-SMITH-UNIVERSITY-AS - Philander Smith University | 256 | — | 1 |
| AS62716US | TELECOM-ENTRENAMIENTOS-TELECOM-ISP-SOLUTIONS - Telecom Trainings LLC | 256 | 256 | 2 |
| AS54082US | MULTICABLE-NETWORK-GT-LLC - MULTICABLE NETWORK LLC | 256 | 65.5K | 2 |
| AS14847US | PECKSERVERS-LLC-IP-ROUTING - Peck Servers, LLC | 256 | 256 | 2 |
| AS33101US | AAFCU-PUBLIC-01 - AIR ACADEMY FEDERAL CREDIT UNION | 256 | — | 1 |
| AS401269US | GREENVILLEWATER - Greenville Water | 256 | — | 1 |
| AS394490US | AATRIX - Aatrix Software, Inc | 256 | 1 | 2 |
| AS10730US | SN-DFO - Syndeo Networks, Inc | 256 | — | 1 |
| AS18691US | ASN-BN-ARVADA - Barber-Nichols, LLC | 256 | — | 1 |
| AS399617US | DALLAS-COUNTY-DATA - Satellite Center, LLC | 256 | — | 1 |
| AS394398US | CFSMI-HQ - Client Financial Services of Michigan, LLC | 256 | — | 1 |
| AS401475US | CIGIE-ASN1 - CIGIE | 256 | 1 | 2 |
| AS33155US | ATS-NET - ADVANCED TECHNOLOGY SERVICES, INC. | 256 | — | 1 |
| AS23053US | SELECTIVE-AS - Selective Insurance Company of America | 256 | — | 1 |
| AS36415US | HNSF222 - Hotel Nikko of San Francisco, Inc. | 256 | — | 1 |
| AS46919US | QRM - Quantitative Risk Management, Incorporated | 256 | — | 1 |
| AS399364US | KIRKLAND-ELLIS-CC - Kirkland & Ellis LLP | 256 | — | 1 |
| AS62978US | REDDYICE - Reddy Ice Holdings, Inc | 256 | — | 1 |
| AS33396US | GENERAL-HEALTH-SYSTEMS - GENERAL HEALTH SYSTEM | 256 | — | 1 |
| AS30594US | FREESTONE-GROVE - Freestone Grove Partners | 256 | — | 1 |
| AS399069US | PENGUIN-POD - PENGUIN COMPUTING INC | 256 | — | 1 |
| AS394904US | SPARWORKS - SparWorks LLC | 256 | — | 1 |
| AS397479US | HUBER-AS-01 - Huber & Associates, Inc. | 256 | — | 1 |
| AS53778US | BCML-ASN - Berenberg Capital Markets, LLC | 256 | — | 1 |
| AS401484US | ASTERALABS - Astera Labs | 256 | — | 1 |
| AS399587US | NODERINGS-AS - NodeRings LLC | 256 | 4.1K | 2 |
| AS397530US | SOFTEON - SOFTEON, INC | 256 | — | 1 |
| AS397744US | REANONYMOUS - ReAnonymous LLC | 256 | — | 1 |
| AS62779US | AMER-COLLEGE-OF-CARDIOLOGY-HOSTING1 - American College of Cardiology | 256 | — | 1 |
| AS11441US | FREDERICK-MEMORIAL-HOSPITAL - Frederick Memorial Healthcare System | 256 | — | 1 |