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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. | 218M | 24,346 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 512 |
| — |
| 2 |
| AS33496US | ISC - ISC CONSTRUCTORS, LLC | 512 | 1 | 3 |
| AS394823US | TFFI - Taylor Fresh Foods, Inc. | 512 | — | 2 |
| AS10985US | CURTIS-ASNUM - Curtis Instruments, Inc. | 512 | — | 2 |
| AS398476US | TORC-ROBOTICS - TORC Robotics, Inc. | 512 | — | 2 |
| AS19768US | SCAN - SCAN Health Plan | 512 | — | 2 |
| AS27226US | HARBOURVEST - Harbourvest Partners, LLC | 512 | — | 2 |
| AS40618US | SESAME - Sesame Workshop | 512 | — | 2 |
| AS33690US | AUREON-33690 - Aureon Network Services | 512 | 256 | 3 |
| AS396067US | CURRENT-NETWORKS-01 - Current Networks | 512 | 256 | 2 |
| AS394171US | ONPOINTCCU - OnPoint Community Credit Union | 512 | — | 2 |
| AS26503US | PHONECOM - Phone.com, Inc. | 512 | — | 2 |
| AS40067US | NEWEGG - Newegg Inc. | 512 | — | 2 |
| AS20286US | AMER-COLLEGE-OF-CARDIOLOGY-WASHINGTONDC - American College of Cardiology | 512 | — | 2 |
| AS18812US | NEWWAVECOMM - New Wave Communications | 512 | — | 2 |
| AS402123US | UNMTA-AS-01 - UNMTA LLC | 512 | 256 | 3 |
| AS401727US | MEOWNET - Aurora Development LLC | 512 | 768 | 5 |
| AS400530US | DCS-01 - Dubuque Community Schools | 512 | — | 2 |
| AS398866US | INTERBANK-01 - InterBank | 512 | — | 2 |
| AS394025US | ATHOME - At Home Stores LLC | 512 | — | 2 |
| AS33312US | FFBM-0049 - Premier Bank | 512 | — | 1 |
| AS46739US | COLPIPE-EXT - Colonial Pipeline Company | 512 | — | 1 |
| AS32889US | SOUTHWESTERN-WIRELESS - Southwestern Wireless, Inc. | 512 | — | 2 |
| AS396213US | USCUPSTATE - USC Upstate | 512 | — | 2 |
| AS397776US | SUMMITBGP - County of Summit, Ohio | 512 | — | 2 |
| AS7448US | CHOICE-HOTELS - Choice Hotels International, Inc. | 512 | — | 2 |
| AS401781US | HOSTPEPPER - HostPepper, LLC | 512 | — | 2 |
| AS395409US | NEOCITIES - Neocities | 512 | 16 | 3 |
| AS26824US | VLUZNET-US - VLUZNET | 512 | — | 1 |
| AS401230US | STAPLES-EQUINIX-EAST - Staples, Inc | 512 | — | 2 |
| AS397979US | AIRMAX-1 - Airmax | 512 | — | 2 |
| AS40267US | PCTI - Passaic County Technical Institute | 512 | 16 | 3 |
| AS14927US | TERATEAMS-INC - TeraTeams Inc | 512 | — | 2 |
| AS396654US | VRSN-AC50-340 - VeriSign Global Registry Services | 512 | — | 2 |
| AS258US | BRAGGSRI-EGP-AS - Headquarters, USAISC | 512 | — | 2 |
| AS401706US | VALLEY-SMART-HOMES - Valley Smart Homes | 512 | 4.1K | 3 |
| AS402174US | SHIELDITSM-01 - Shield ITSM, LLC | 512 | 2 | 4 |
| AS40347US | EAUCLAIRE-COUNTY - Eau Claire County | 512 | — | 1 |
| AS47010US | LG-03279 - Liggett Group LLC | 512 | — | 2 |
| AS16719US | NASD - Financial Industry Regulatory Authority, Inc. | 512 | — | 2 |
| AS27390US | ALGAS - Fred Alger & Co Inc. | 512 | — | 2 |
| AS32109US | REDDOTNET-USA - Reddot Networks Inc. | 512 | 4.1K | 3 |
| AS216013US | PAPYRUS-AS Caleb Bonner Trading as Papyrus VIP | 512 | — | 2 |
| AS393376US | DYNAMICEDGE - Dynamic Edge, Inc. | 512 | — | 1 |
| AS11211US | NCIC - NCIC Operator Services | 512 | — | 2 |
| AS23010US | FFHSJ - Fried, Frank, Harris, Shriver & Jacobson LLP | 512 | — | 2 |
| AS36265US | MCL-INT-ALL - Maverick Capital, LTD. | 512 | — | 2 |