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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 | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 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 | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 1.5K |
| — |
| 6 |
| AS396549US | VRSN-AC50-340 - VeriSign Global Registry Services | 1.5K | — | 6 |
| AS10880US | YAHOO-AN2 - Yahoo Holdings Inc. | 1.5K | 6 | 12 |
| AS32739US | CHRISTIANACARE-AS-1 - Christiana Care Health Services, Inc. | 1.5K | — | 6 |
| AS40760US | FWB-ALASKA-2 - TelAlaska | 1.5K | — | 3 |
| AS11336US | BLACKROCK-FINANCIAL-MANAGEMENT - BlackRock Financial Management, Inc. | 1.5K | — | 6 |
| AS36020US | WEATHER-COMPANY - The Weather Company | 1.5K | — | 6 |
| AS6349US | BCN-TELECOM-ASN1 - BCN Telecom Inc. | 1.5K | — | 6 |
| AS11791US | SLC-IDENT-AS - IdenTrust | 1.5K | — | 2 |
| AS33350US | APS---ARIZONA-PUBLIC-SERVICE-CORPORATION - Arizona Public Service Company | 1.5K | — | 6 |
| AS46277US | OHIOHEALTH - OhioHealth Corporation | 1.5K | — | 5 |
| AS400643US | ARROYO-SECO-01 - Arroyo Seco Wireless, LLC | 1.5K | — | 3 |
| AS396123US | WAVEBAND-LLC - WAVE.BAND, LLC | 1.5K | — | 6 |
| AS399374US | LERU - Le-Ru Telephone Company | 1.5K | — | 6 |
| AS401863US | TELEPAGE-HELENWOOD - TELE-PAGE, Inc | 1.5K | — | 2 |
| AS62807US | NETARYX - NETARYX LLC | 1.5K | — | 3 |
| AS46852US | IMC-CHICAGO - IMC Markets | 1.5K | — | 3 |
| AS46849US | TLSN-TX - TEXAS LONE STAR NETWORK, LLC | 1.5K | 65.5K | 6 |
| AS54968US | VOM-NOC - Data Pro of Sonoma and Vom.com | 1.5K | — | 6 |
| AS54110US | CLEARLYIP1 - Modulis | 1.5K | — | 5 |
| AS27282US | ASNIC - North Idaho College | 1.5K | 1 | 4 |
| AS400967US | ASSURED-NETWORKS - Assured Networks | 1.5K | 4.1K | 11 |
| AS16692US | HHMI - Howard Hughes Medical Institute | 1.5K | 1 | 4 |
| AS11928US | HBGUSA - Hachette Book Group, Inc. | 1.5K | — | 5 |
| AS22003US | PT-ASN - PALANTIR TECHNOLOGIES INC. | 1.5K | — | 6 |
| AS19529US | ROGERS - RFPT COMPANY LLC | 1.5K | 288 | 6 |
| AS395962US | WSU-VAN-AS - Washington State University | 1.5K | — | 3 |
| AS36678US | CTUSA - CHINA TELECOM (AMERICAS) CORPORATION | 1.5K | — | 5 |
| AS7191US | CENTURYLINK-PRISM - CenturyLink Communications, LLC | 1.5K | — | 2 |
| AS64260US | SRDF - SRDF, Inc. | 1.5K | 65.5K | 5 |
| AS14042US | COMCAST-COMM-MGT-1 - Comcast Cable Communications Management, LLC | 1.5K | — | 3 |
| AS22075US | AS-OUTBRAIN - Outbrain, Inc. | 1.5K | — | 6 |
| AS205196US | BIGCORE-ASN BIG CORE LLC | 1.5K | — | 6 |
| AS46667US | EPSEL-ASN - Evercore Partners Services East, LLC | 1.5K | — | 6 |
| AS25680US | EMUNET-HBGVA - Eastern Mennonite University | 1.5K | — | 6 |
| AS62929US | 186-ASN - FirstLight Fiber, Inc. | 1.5K | — | 2 |
| AS27237US | AHSNET-01 - Ardent Health Services, Inc. | 1.5K | — | 6 |
| AS19687US | PPPS-ILG - Planet Payment Processing Services | 1.5K | — | 6 |
| AS46518US | CLOUDPROVIDERUSA - Cloud Provider USA, LLC. | 1.5K | — | 5 |
| AS62813US | AJ-MADISON - Star Creations Inc. | 1.5K | — | 4 |
| AS394322US | CHS-AS1 - Convey Health Solutions, Inc. | 1.5K | — | 5 |
| AS43755US | NODESDIRECT Nodes Direct Holdings LLC | 1.5K | — | 3 |
| AS40766US | EQUINOX-PAYMENTS - Equinox Payments | 1.5K | — | 6 |
| AS199152US | VDC-USA Virtual Data Center Inc | 1.5K | 651.3K | 34 |
| AS4869US | CNMCC - Central New Mexico Community College | 1.5K | — | 6 |
| AS18484US | VTLA - NTT Global Networks Incorporated | 1.5K | — | 6 |
| AS54301US | IPHASE-AS - Interphase Communications, Inc. | 1.5K | — | 6 |