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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 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 | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| VRSN-AC50-340 - VeriSign Global Registry Services |
| — |
| — |
| 0 |
| AS396639US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396645US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396649US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396659US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396665US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396668US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396669US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396707US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396714US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396736US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396759US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396762US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396801US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396809US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396818US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396821US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396829US | FOC-20-1 - FIRST ORION CORP. | — | — | 0 |
| AS396903US | SENSOR-TOWER-1 - Sensor Tower, Inc | — | — | 0 |
| AS396974US | BRIGHTPACKET-396974 - Bright Packet, Inc. | — | — | 0 |
| AS396996US | MERIDIAN-EAST-01 - HarborGrid Inc | — | — | 0 |
| AS397000US | CLARKPEST-ASN - Clark Pest Control | — | — | 0 |
| AS397053US | PLA01 - NFP Property and Casualty Services Inc. | — | — | 0 |
| AS397119US | GEN2-ASN-BGP - Gen II Fund Services, LLC | — | — | 0 |
| AS397144US | F5-XC-SS - F5, Inc. | — | — | 0 |
| AS397193US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397207US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397211US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397214US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397217US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397231US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397232US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397245US | BLUSKY-TECHNOLOGIES - BluSky Technologies, LLC | — | — | 0 |
| AS397247US | BRIAR-SOLUTIONS-1 - Briar Solutions | — | — | 0 |
| AS397313US | STEMC - Southwest Tennessee Electric Membership Corporation | — | — | 0 |
| AS397397US | CHEYENNE-BOPU - Cheyenne Board of Public Utilities | — | — | 0 |
| AS397398US | BREWSTER-ASN-01 - Brewster Academy | — | — | 0 |
| AS397467US | LIGHTWAVEUSA - Lightwave USA LLC | — | — | 0 |
| AS397628US | ROUNDPOINT-MORTGAGESERVICING-CORPORATION - RoundPoint Mortgage Servicing Corporation | — | — | 0 |
| AS397821US | GEICO-MSPEER - GEICO | — | — | 0 |
| AS397826US | RASBGP - RAS Security Group | — | — | 0 |
| AS397872US | JBL-ASN-01 - Point Broadband Fiber Holding, LLC | — | — | 0 |
| AS397895US | MC-1 - Masters Communications | — | — | 0 |
| AS397946US | LUMIN-DIGITAL-HOSTED-01 - Lumin Digital, Inc. | — | — | 0 |
| AS398036US | COMPUTERSOS - Computer SOS Inc. | — | — | 0 |
| AS398067US | 8X8-AS-SJC01 - 8x8, Inc. | — | — | 0 |
| AS398127US | CR8DL - CR8DL INC. | — | — | 0 |