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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| 512 |
| — |
| 2 |
| AS395037US | ASSFG01 - Sammons Financial Group, Inc. | 512 | — | 2 |
| AS53775US | SEKISUI KYDEX - Sekisui KYDEX, LLC | 512 | — | 2 |
| AS32630US | PCI-DB - Patterson Companies, Inc. | 512 | — | 2 |
| AS26503US | PHONECOM - Phone.com, Inc. | 512 | — | 2 |
| AS53697US | MOHELA - MOHELA | 512 | — | 2 |
| AS46105US | ALPAON-NA-AS - Alpaon America LLC | 512 | — | 2 |
| AS11902US | WORLD-LINK - World-Link Communications, Inc. | 512 | — | 2 |
| AS208757US | RelInfoAS RelINFO Solutions LLC | 512 | — | 1 |
| AS32109US | REDDOTNET-USA - Reddot Networks Inc. | 512 | 4.1K | 3 |
| AS400998US | AWN-SERVER-HOSTING - AWN Server Hosting, LLC | 512 | — | 2 |
| AS40877US | XULA - Xavier University of Louisiana | 512 | — | 2 |
| AS46799US | SOSASN1 - SOS | 512 | — | 2 |
| AS400703US | BB-7700 - Bankers' Bank | 512 | — | 2 |
| AS21900US | LBPC - LAW BULLETIN PUBLISHING COMPANY | 512 | — | 2 |
| AS36009US | TGNA-KGW - TEGNA Inc. | 512 | — | 2 |
| AS399003US | CCL-AS-01 - chr.is Consulting LLC | 512 | 256 | 2 |
| AS203729US | igloo22225 June Slater | 512 | 4 | 6 |
| AS538US | DNIC-AS-00538 - Headquarters, USAISC | 512 | — | 2 |
| AS55287US | OKLO - Oklo Inc. | 512 | — | 2 |
| AS22043US | STERIS - STERIS Corporation | 512 | — | 2 |
| AS19682US | TLFXAS01 - TeleFlex Networks, LLC | 512 | — | 1 |
| AS63165US | CCPS-17ASN - Clayton County Public Schools | 512 | — | 2 |
| AS398351US | MAYMOBILITY - May Mobility, Inc | 512 | 2 | 4 |
| AS395695US | TEGNA-KPNX - TEGNA Inc. | 512 | — | 2 |
| AS33496US | ISC - ISC CONSTRUCTORS, LLC | 512 | 1 | 3 |
| AS30680US | FISCOM-COLO5-JAX-FL - Fidelity National Information Services, Inc. | 512 | — | 2 |
| AS62891US | ASN-CHIEF-1 - CHIEF INDUSTRIES, INC. | 512 | — | 1 |
| AS18833US | ASHP-NETWORK - American Specialty Health Plans of CA, Inc. | 512 | — | 2 |
| AS112US | AS112-PROJECT - DNS-OARC | 512 | 2 | 4 |
| AS258US | BRAGGSRI-EGP-AS - Headquarters, USAISC | 512 | — | 2 |
| AS401132US | BL-RUBI - BulletServers LLC | 512 | 1 | 3 |
| AS11298US | KLD-ATX - Renew Data Corp. | 512 | — | 2 |
| AS401894US | CYBERDELIA-INTENETWORKING-GROUP - /dev/hack | 512 | 256 | 3 |
| AS400554US | STRICITY - Stricity LLC | 512 | 256 | 3 |
| AS25916US | FREEMAN-COMPANIES - The Freeman Companies | 512 | — | 2 |
| AS55257US | LOU1-STRATAPOINTE - Strata Pointe Technologies LLC | 512 | — | 1 |
| AS17038US | FLORI-62 - FTD | 512 | — | 2 |
| AS32639US | SOLARNETONE - SolarNetOne, Inc. | 512 | 4.1K | 4 |
| AS27533US | OMGEO - Depository Trust & Clearing Corporation | 512 | — | 2 |
| AS17321US | LHC-GROUP - LHC Group | 512 | — | 2 |
| AS40889US | GREYSTONE - Greystone IT, Inc. | 512 | — | 2 |
| AS393971US | MLKJAMHC - Martin Luther King Jr., Healthcare Corporation | 512 | — | 2 |
| AS14927US | TERATEAMS-INC - TeraTeams Inc | 512 | — | 2 |
| AS53769US | BBKLAW - Best Best & Krieger LLP | 512 | — | 2 |
| AS63260US | ALYESKA - Alyeska Inc. | 512 | 4.1K | 3 |
| AS27479US | LNSP - Lake Norman Security Patrol, Inc. | 512 | — | 2 |