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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 |
| — |
| — |
| 0 |
| AS5276US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS4990US | ATTIS-ASN4990 - AT&T Enterprises, LLC | — | — | 0 |
| AS4526US | ARMY-FMO - Dod Joint Spectrum Center | — | — | 0 |
| AS4575US | CYBERHOUSE - CyberHouse Corp. | — | — | 0 |
| AS4446US | INFINET-ASN - Infinet Technologies and Services | — | — | 0 |
| AS401649US | AS-CYRATECH-LAX - Cyratech Technologies LLC | — | 256 | 1 |
| AS7208US | MEGANET - MegaNet | — | — | 0 |
| AS5798US | SUPERLATIVE - Superlative, Inc. | — | — | 0 |
| AS5704US | CARIBE-NET - Caribbean Internet Service, Corp. | — | — | 0 |
| AS5701US | HEALTH-ONE - HealthOne | — | — | 0 |
| AS5342US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS214974US | ZEROTECH-AS ZEROTECH CLOUD LLC | — | 1 | 1 |
| AS4993US | COGENT-4991-4994 - Cogent Communications, LLC | — | — | 0 |
| AS401904US | ORCHARD-LAKE-SYSTEMS - Orchard Lake Systems Inc | — | 1 | 1 |
| AS8120US | BESTWEB - FirstLight Fiber, Inc. | — | — | 0 |
| AS11890US | IVANET-LA - iBasis, Inc. | — | — | 0 |
| AS11616US | PEAPOD - Peapod, Inc. | — | — | 0 |
| AS11536US | SRC-ASN01 - Sunrise Communications LLC | — | — | 0 |
| AS11116US | WATCHCOMM-IN - Watch Communications | — | — | 0 |
| AS11154US | SWS - Hilltop Securities Inc. | — | — | 0 |
| AS11092US | HEVANET - Hevanet | — | — | 0 |
| AS401533US | TGSLLC-02 - TGS, LLC | — | 1 | 1 |
| AS13425US | JUNO-DC-1 - Juno Online Services, Inc. | — | — | 0 |
| AS403096US | ANDROMEDACRAFT-HOSTING - Andromedacraft | — | 256 | 1 |
| AS393771US | MHL-731 - DS Metis Holdings LLC | — | — | 0 |
| AS399164US | SECURITYSERVICES - Vercara, LLC | — | 256 | 1 |
| AS393718US | ABILITY-ASN - Ability Network Inc. | — | — | 0 |
| AS212996US | ZEROAV-CUST Zero Attack Vector LLC | — | 65.5K | 3 |
| AS46703US | SOFTLAYER-SEA01 - IBM Cloud | — | — | 0 |
| AS6417US | AGENTS-INC - Agents, Inc. | — | — | 0 |
| AS6347US | CENTURYLINK-LEGACY-DIAMOND - CenturyLink Communications, LLC | — | — | 0 |
| AS6314US | CDC-AS - Chattanooga Data Connection, Inc. | — | — | 0 |
| AS6073US | ETI - KAPS, Inc | — | — | 0 |
| AS6096US | SYSNET-1 - Sysnet Corp | — | — | 0 |
| AS5985US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6217US | ANS-AXISNET - Axis.Net Inc. | — | — | 0 |
| AS6990US | ONE-O - One-O, Inc. | — | — | 0 |
| AS7166US | C-ECOMM - C-E Communications | — | — | 0 |
| AS7113US | NFIC-AS - New Frontiers Information Corp. | — | — | 0 |
| AS7092US | ICIGAMES - INTERACTIVE CREATIONS INC. | — | — | 0 |
| AS6637US | INFOEX - Infoexchange/Sprint | — | — | 0 |
| AS6969US | N2K-ASN - N2K Inc. | — | — | 0 |
| AS6603US | MTWEST208 - CottonWood CyberVentures | — | — | 0 |
| AS29854US | WESTHOST - WestHost, Inc. | — | 65.5K | 1 |
| AS5674US | PBI-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS5121US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |