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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 |
| 1K |
| — |
| 4 |
| AS10974US | AS-10974 - Member Driven Technologies | 1K | — | 1 |
| AS12233US | CACHE-POWERED-BY-NINJA-IX - Ninja-IX Corporation | 1K | 1 | 5 |
| AS63136US | SIPRADIUS - SipRadius | 1K | — | 4 |
| AS397822US | CRC-ASN - California Resources Corporation | 1K | — | 3 |
| AS14770US | REYNOLDSMEDIA-01 - Reynolds Media Inc. | 1K | 2 | 5 |
| AS14740US | MAGNA5 - Magna5 MS LLC | 1K | — | 3 |
| AS53469US | KPBSD - Kenai Peninsula Borough School District | 1K | — | 1 |
| AS14070US | SVH-TVH-AS1 - Valley Health System | 1K | — | 1 |
| AS19358US | JBL-ASN - JOHNSON BROTHERS LIQUOR COMPANY | 1K | — | 3 |
| AS40800US | VEEAM-US - VEEAM SOFTWARE CORPORATION | 1K | — | 4 |
| AS23368US | DATAONE - DATA ONE SYSTEMS, INC. | 1K | 4.1K | 5 |
| AS19647US | HPINC - HP Inc. | 1K | — | 2 |
| AS398557US | SDS-WIRELESS-INC - SDS Wireless, Inc. | 1K | — | 1 |
| AS27632US | TRACTORSUPPLY - Tractor Supply Company | 1K | 65.5K | 7 |
| AS33607US | WSC-PHILADELPHIA-PA - Weidenhammer | 1K | — | 3 |
| AS399215US | ACTS-01 - ACTS | 1K | — | 3 |
| AS6267US | MEGAPATH3-US - GTT Americas, LLC | 1K | — | 4 |
| AS22496US | LIMEBROKERAGE-US - Score Priority Corp | 1K | — | 1 |
| AS400507US | CHARGER-ACCESS-ASN-01 - Charger Access, LLC | 1K | — | 4 |
| AS22746US | LCTS - Lincoln County Telephone System, Inc. | 1K | 65.5K | 2 |
| AS18560US | LSCO1 - Lamar State College - Orange | 1K | — | 1 |
| AS5978US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 1K | 1 | 4 |
| AS401299US | SIPNAV-EAST - SipNav LLC | 1K | 256 | 5 |
| AS54707US | IL-235-54707 - Intellipop, LLC | 1K | — | 4 |
| AS1426US | TENSPIRE-NETWORK-1426 - TenSpire Network | 1K | — | 3 |
| AS396470US | LCC-EDU - Lansing Community College | 1K | — | 3 |
| AS16991US | CBTS-AS-DC1 - Cincinnati Bell Technology Solutions | 1K | — | 1 |
| AS14532US | CBOSS - CBOSS INC | 1K | 6 | 10 |
| AS62576US | S-MOBILE-24 - S-Mobile LLC | 1K | — | 4 |
| AS40461US | RFIH-NET5 - Retail Finance International Holdings, Inc. | 1K | 1 | 4 |
| AS394755US | CRHSC - City of Rock Hill SC | 1K | — | 4 |
| AS46118US | CELANESE-US - Celanese International Corporation | 1K | — | 3 |
| AS40035US | HASTINGS-INSURANCE-CO - Hastings Insurance Company | 1K | 4 | 5 |
| AS394922US | CGIFEDERAL - CGI Federal | 1K | — | 4 |
| AS399974US | FULTON-ASN - Fulton County Government | 1K | — | 4 |
| AS401231US | WATCH-BROADBAND-TX - Watch Communications | 1K | — | 1 |
| AS6103US | MTW-ASN - The Manitowoc Company Inc | 1K | — | 4 |
| AS23291US | FLAGSTAR-BANK-US - Flagstar Bank | 1K | — | 4 |
| AS54314US | LHA-2-ASN - Lancaster General Health | 1K | — | 4 |
| AS400769US | FUBOTV-NA-01 - fuboTV Media, Inc | 1K | 4.1K | 5 |
| AS896US | FORTLAB - Fortlab | 1K | — | 4 |
| AS26084US | PCI - PCI | 1K | — | 4 |
| AS11346US | LAS-NIDR - PIMCO | 1K | — | 4 |
| AS16619US | GTRI-RSRCH - Georgia Institute of Technology | 1K | — | 1 |
| AS1089US | ZELLATECH - Zella Technologies, LLC | 1K | 4.1K | 2 |
| AS14940US | LIGO-HANFORD-OBSERVATORY - LIGO Livingston Observatory | 1K | — | 1 |