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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 | 23,666 |
| 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 |
| 234 |
| 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 | 4,491 |
| 3.6K |
| — |
| 3 |
| AS394456US | EPIK-LLC - Epik LLC | 3.6K | 65.5K | 15 |
| AS26630US | LPS-3 - Black Knight IP Holding Company, LLC | 3.6K | — | 13 |
| AS398487US | ZEROOUTAGES - ZeroOutages | 3.6K | — | 14 |
| AS53914US | GENESIS-HOSTING-SOLUTIONS-LLC - Genesis Hosting Solutions, LLC | 3.6K | — | 6 |
| AS12211US | OCNL-AS12211 - Operations & Compliance Network LLC | 3.6K | — | 13 |
| AS63156US | TGNA-WFAA - TEGNA Inc. | 3.6K | — | 14 |
| AS62549US | PARKLAND-COLLEGE-01 - Parkland College | 3.6K | — | 4 |
| AS395189US | BTCS-BSPS-ASN-1 - BROADRIDGE SECURITIES PROCESSING SOLUTIONS, LLC | 3.6K | — | 9 |
| AS29757US | WEBLINE19 - Webline Services Inc | 3.6K | 65.5K | 17 |
| AS17812US | DIGICERTINC-AS-AP - Digicert Inc | 3.6K | — | 6 |
| AS395475US | SCSALASKA - SnowCloud Services LLC | 3.6K | 65.5K | 7 |
| AS22040US | LINXUS1 - Linxus Internet | 3.6K | — | 11 |
| AS21787US | CERIDIAN - CERIDIAN | 3.6K | — | 8 |
| AS21858US | ASCENT-DATA-LLC - Ascent Data, LLC | 3.6K | 65.5K | 7 |
| AS55076US | JOHNSON-TELCO - Johnson Telephone Company | 3.6K | — | 3 |
| AS29709US | NEONET-FALLS - Northeast Ohio Network for Educational Technology | 3.6K | — | 7 |
| AS32002US | RACKGENIUS - RackGenius | 3.6K | 4 | 13 |
| AS402710US | NORTHERN-TEL-SUNBURST-MT - Northern | 3.6K | — | 11 |
| AS12152US | AS12152 - Ascensus, LLC. | 3.6K | — | 12 |
| AS35777US | LTN-AS - LTN Global Communications Inc | 3.6K | 13 | 27 |
| AS46549US | GVO - Global Virtual Opportunities | 3.6K | — | 3 |
| AS397982US | GRAND-MOUND-COMMUNICATIONS - GRAND MOUND COOPERATIVE TELEPHONE ASSOCIATION | 3.6K | — | 9 |
| AS13376US | TOPPAN-MERRILL - Toppan Merrill LLC | 3.6K | — | 6 |
| AS47046US | WADSWORTH-CITYLINK - CityLink | 3.6K | 65.5K | 4 |
| AS23278US | SMART-CITY-ANCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 3.6K | — | 3 |
| AS55028US | KIEWIT-US - Kiewit Corporation | 3.6K | 4.1K | 8 |
| AS27080US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | 3.6K | — | 11 |
| AS13787US | CENTURYLINK-LEGACY-EMBARQ-JCTY - CenturyLink Communications, LLC | 3.6K | — | 4 |
| AS16463US | DPSINET - Data Processing Solutions, Inc. | 3.6K | — | 3 |
| AS399381US | REZI-NET-AS - Resideo Technologies, Inc | 3.6K | — | 7 |
| AS26428US | TALBOTS - The Talbots, Inc. | 3.6K | — | 6 |
| AS219160US | PRIVATASOLUTIONS-AS Privata Solutions L.L.C. | 3.6K | — | 14 |
| AS27027US | AIRLINK-INTERNET - AirLink Internet Services | 3.6K | 65.5K | 9 |
| AS17017US | AS-CAMPUSCOLO - campuscolo.com | 3.6K | 65.5K | 5 |
| AS396853US | NCW-AS2 - WorldCell Solutions, LLC | 3.6K | 65.5K | 5 |
| AS20384US | NWLRBD - NewellRubbermaid Inc. | 3.6K | — | 14 |
| AS205399US | HOSTIGGER Hostigger INC. | 3.6K | — | 14 |
| AS14525US | STELLAR-AF - Stellar Technologies, LLC | 3.6K | 77.8K | 11 |
| AS63025US | NOHAVPS-LLC - NOHAVPS LLC | 3.6K | 259 | 18 |
| AS32457US | AS32457 - City of Houston | 3.6K | — | 14 |
| AS401063US | COLTON-COG-ORG - COLTONTEL | 3.6K | — | 9 |
| AS25774US | BES-N003 - Better eSolution | 3.6K | 65.5K | 5 |
| AS41625US | ETSERVICE-AS Express Teleservice Corp | 3.6K | 131.1K | 12 |
| AS14639US | CARDINALHEALTH-AS02 - Cardinal Health, Inc. | 3.6K | 1 | 12 |
| AS26819US | TOIBGP1 - Telos Online, Inc | 3.6K | — | 7 |
| AS19709US | HX-ISP-CHO - Helix Computer Systems, Inc. | 3.6K | — | 4 |