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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. | 218.1M | 26,023 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,233 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,893 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 512 |
| — |
| 2 |
| AS63243US | SYNERGENT - Synergent | 512 | — | 2 |
| AS7818US | ASN-QUEENCREEK - Town of Queen Creek | 512 | — | 2 |
| AS19251US | NEPGROUPINC - NEP Group, Inc. | 512 | — | 2 |
| AS396976US | BYNUM-DR-01 - AOD Federal Credit Union | 512 | — | 2 |
| AS35864US | APUS-5 - American Public University System | 512 | — | 2 |
| AS14279US | HDS-ORL-ASN1 - HD Supply, Inc. | 512 | — | 2 |
| AS207439US | KORVESNET Korves.Net USA LLC | 512 | 524.3K | 3 |
| AS13478US | BEAGLE - Beagle Networks | 512 | — | 2 |
| AS27453US | ASN1 - Systemax Inc. | 512 | — | 2 |
| AS30672US | AS30672 - QMACS | 512 | — | 2 |
| AS11962US | EMPIRE5882300 - Empire Today LLC | 512 | — | 2 |
| AS397932US | NYSA-ASN - New York State Assembly | 512 | — | 2 |
| AS400835US | MIDD-ASN-01 - Middleby Corp | 512 | — | 2 |
| AS398837US | HOPE - Hope Enterprise Corporation | 512 | 257 | 4 |
| AS18956US | LLAMA-NETWORKS-01 - Llama Networks LLC | 512 | 2 | 4 |
| AS11248US | MSTS-NET - TreviPay | 512 | — | 2 |
| AS396291US | NCH-HEALTHCARE-SYSTEM - NCH Healthcare System, Inc. | 512 | — | 2 |
| AS33161US | CHUMASH-ENTERPRISES - Chumash Casino Resort | 512 | — | 2 |
| AS36046US | BOTC - BOTC | 512 | — | 2 |
| AS397146US | FARMCREDIT-MIDAMERICA - Farm Credit Mid-America | 512 | — | 2 |
| AS47094US | ITRON-6-47094 - Itron | 512 | — | 2 |
| AS27170US | QBE-AMERICAS-ORD - QBE Americas, Inc. | 512 | — | 2 |
| AS397807US | RNT-DS-NET - Reich & Tang Deposit Solutions, LLC | 512 | — | 2 |
| AS395452US | SFPS - SFPS | 512 | — | 2 |
| AS393555US | MOIT - City of Baltimore, Mayor's Office of Information Technology | 512 | — | 2 |
| AS63047US | KMHA - Konica Minolta Healthcare Americas, Inc. | 512 | — | 2 |
| AS22579US | INDEPENDENCE-HEALTH-SYSTEM-BUTLER - Butler Memorial Hospital | 512 | — | 2 |
| AS36769US | WGAL-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS402151US | INFINIT-01 - Infinite Portal LLC | 512 | — | 1 |
| AS17167US | MCSNOC01 - Microchip Computer Solutions, Inc. | 512 | — | 2 |
| AS400695US | APOG-FAYETTEVILLE - Apogee Telecom Inc. | 512 | — | 1 |
| AS13978US | WHBE-OLYMPIA - Washington Health Benefit Exchange | 512 | — | 2 |
| AS22130US | DAS-BGP-29 - Doctor's Associates LLC | 512 | — | 2 |
| AS22868US | BDPINTERNATIONAL - BDP International | 512 | — | 2 |
| AS395842US | GLACIER-BROADBAND-MT - Glacier Broadband | 512 | — | 2 |
| AS14085US | LEARN-I2PX - LEARN | 512 | 2 | 4 |
| AS398188US | COUNTY-OF-PASSAIC - County of Passaic | 512 | — | 1 |
| AS13457US | 13457-WOLVERINE-POWER-SUPPLY - Wolverine Power Supply | 512 | — | 2 |
| AS18518US | ARES-MGMT - Ares Management LLC | 512 | — | 2 |
| AS400659US | DAVEYGROUPLLC-ASN - Davey Group LLC | 512 | 1 | 3 |
| AS32041US | UL - Underwriters Laboratories | 512 | — | 2 |
| AS22615US | MONROECOUNTYCOMMSCH - Monroe County Community School Corporation | 512 | — | 2 |
| AS62722US | CSF-ASN-01 - Central States Southeast and Southwest Areas Health and Welfare and Pension Funds | 512 | — | 2 |
| AS20388US | ETI-FLL1 - Ewart Technologies, Inc. | 512 | — | 2 |
| AS16896US | NCN - NCN | 512 | — | 2 |
| AS7124US | DACSCX-US - DACS-IX | 512 | 264 | 11 |