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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 210.9M | 21,022 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,223 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48M | 3,586 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,933 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,550 |
| 9.5K |
| — |
| 19 |
| AS6421US | AS6421 - TATA COMMUNICATIONS (AMERICA) INC | 9.5K | 1 | 36 |
| AS11352US | IOMAR-11352 - Iomartcloud Inc. | 9.5K | 69.6K | 17 |
| AS23126US | CENTURYLINK-CLEC-VARIOUS-SHARED-USE-AND-LOCATIONS - CenturyLink Communications, LLC | 9.5K | — | 18 |
| AS35487US | MISAKA Misaka Network, Inc. | 9.5K | 201K | 65 |
| AS30452US | FIRST-NATIONAL-TECHNOLOGY-SOLUTONS - First National Technology Solutions, Inc. | 9.5K | 5 | 11 |
| AS26311US | RANCH-WIFI - Ranch WiFi LLC | 9.5K | — | 27 |
| AS1746US | SIRSIDYNIXAS - SirsiDynix | 9.5K | — | 18 |
| AS14343US | JDASOFTWARE - i2 Technologies Inc. | 9.5K | — | 20 |
| AS399310US | SOUTH-SOUND-911 - South Sound 911 | 9.5K | — | 26 |
| AS11488US | BBN-GW - BBN Technologies Corp. | 9.5K | — | 7 |
| AS63111US | ACE-US - ACE INA HOLDINGS INC. | 9.5K | — | 29 |
| AS5758US | MICHIGAN-BROADBAND - ALPHA ENTERPRISES LIMITED, INC. | 9.5K | — | 30 |
| AS55083US | NUMEREX - Numerex Corp | 9.5K | 66K | 8 |
| AS19738US | ASSURANT-ATL01INET - Assurant, Inc. | 9.5K | 2 | 24 |
| AS40805US | JMF-NETWORKS - JMF Solutions, Inc | 9.5K | 73.7K | 10 |
| AS7256US | VIACOM-AS - Viacom Inc. | 9.5K | — | 18 |
| AS3756US | NYSERNET3-AS - NYSERNet | 9.5K | 1 | 8 |
| AS12094US | SISTERLAKESCABLE - Sister Lakes Cable | 9.5K | — | 5 |
| AS30162US | ETHOPLEX - Ethoplex, LLC | 9.5K | 65.5K | 15 |
| AS722US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | 9.5K | — | 7 |
| AS6913US | HCSNET-ASNBLK - Hayes Computer Systems | 9.5K | — | 4 |
| AS15042US | URBN - Urban Communications, Inc. | 9.5K | — | 5 |
| AS402279US | WAWO-GEOSCRY-08 - Geoscry Network LLC | 9.5K | 1 | 12 |
| AS399331US | CONNECT2FIRST-LLC - Connect 2 First Internet, LLC | 9.5K | 65.5K | 22 |
| AS13438US | VIVIO-TECHNOLOGIES - Vivio Technologies | 9.5K | — | 11 |
| AS11996US | LOBOIS - Lobo Internet Services, Ltd | 9.5K | 65.5K | 5 |
| AS393451US | ONLIGHTAURORA - On Light Aurora | 9.5K | — | 6 |
| AS399122US | AS-VPSHOUSE - VPS House Technology Group LLC | 9.5K | 74 | 74 |
| AS1415US | CHNETWORK - Christus Health | 9.5K | — | 22 |
| AS397295US | CITYOFPALOALTO - City of Palo Alto | 9.5K | — | 3 |
| AS394752US | AVATIVE-FIBER - Avative Fiber | 9.5K | 65.5K | 8 |
| AS25716US | INGERSOLL-RAND - Trane Technologies Company LLC | 9.5K | — | 8 |
| AS63089US | SST - Salina Spavinaw Telephone Company, Inc | 9.2K | 65.5K | 4 |
| AS399091US | INTERDATALINK-INC - Inter Data Link Inc | 9.2K | 65.5K | 12 |
| AS19043US | ONEBEACONINSURANCEGROUP - OneBeacon Insurance Group LTD | 9.2K | — | 4 |
| AS11019US | HAPROXY-TECHNOLOGIES - HAProxy Technologies, Inc. | 9.2K | 21 | 50 |
| AS36600US | FROEDTERT-COMMUNITY-HELATH - Froedtert Memorial Lutheran Hospital, Inc. | 9.2K | — | 4 |
| AS10922US | BETTERSTACK - Better Stack, Inc. | 9.2K | 512 | 5 |
| AS46416US | BANKONIT - BankOnIT, L.L.C. | 9.2K | 16 | 13 |
| AS209394US | MWS_RNPP_LON Kyndryl, Inc. | 9.2K | — | 16 |
| AS23394US | PSPINC-BDC - Pacific Software Publishing, Inc. | 9.2K | — | 4 |
| AS4133US | BITWISE - Bitwise Internet Technologies, Inc. | 9.2K | — | 4 |
| AS33570US | CLOUDPATH - Cloudpath | 9.2K | — | 21 |
| AS395226US | SACRAMENTO-COE - Sacramento County Office of Education | 9.2K | 1 | 35 |
| AS16411US | NREL-AS-NATIONAL-RENEWABLE-ENERGY-LABORATORY - National Renewable Energy Laboratory | 9.2K | 1 | 5 |
| AS32667US | 7-ELEVEN-NETWORK - 7-Eleven, Inc. | 9.2K | — | 17 |