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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 | 24,346 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 4,357 |
| AIROCOMM-01 - AiroComm, LLC |
| — |
| — |
| 0 |
| AS396550US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396553US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396562US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396571US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396580US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396600US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396601US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396602US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396662US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396679US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396684US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396687US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396689US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396726US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396758US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396763US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396765US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396782US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396803US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396811US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396902US | PANTHEON-OFFICE-SFO - Pantheon | — | — | 0 |
| AS397034US | COMCAST-AZURE-01 - F.H. PASCHEN, S.N. NIELSEN & ASSOCIATES, LLC | — | — | 0 |
| AS397153US | TWITCH-OFFNET - Twitch Interactive Inc. | — | — | 0 |
| AS397159US | SOVRN-ASN-01 - SOVRN HOLDINGS, INC. | — | — | 0 |
| AS397184US | LOARTINC - MERX FORUM | — | — | 0 |
| AS397213US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397220US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397226US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397229US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397254US | IBK-ISP - Innsbrook Resort and Conference Center | — | — | 0 |
| AS397330US | GSIC-GA - Radial, Inc. | — | — | 0 |
| AS397407US | KEYSTONE-SOLUTIONS-IO - keystone solutions | — | — | 0 |
| AS397447US | ARCOTX1 - ARANSAS COUNTY | — | — | 0 |
| AS397579US | MGS-EXIT-HUB - MIC GLOBAL SERVICES, LLC | — | — | 0 |
| AS397609US | CARTERS14100 - The William Carter Company | — | — | 0 |
| AS397806US | QCIX-1 - QCIX | — | — | 0 |
| AS397825US | WESTROCK - WESTROCK RESTORATION LLC | — | — | 0 |
| AS397834US | ALIMAK-GROUP-IPV6 - Alimak Group USA Inc. | — | — | 0 |
| AS397935US | COWDM-BGP-01 - City of West Des Moines | — | — | 0 |
| AS397943US | CLRUS-BROADBAND-LLC-AS-1 - Clarus Data INC | — | — | 0 |
| AS398108US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS398236US | REG-US-ASN-02 - Chevron Corporation | — | — | 0 |
| AS398274US | EVERSHEDS-SUTHERLAND-US-LLP - Eversheds Sutherland (US) LLP | — | — | 0 |
| AS398281US | NMLLC-01 - National Machinery LLC | — | — | 0 |
| AS398283US | ILLUMITEL - Illumitel | — | — | 0 |
| AS398350US | GORE-NETWORK-USW - W. L. Gore & Associates, Inc. | — | — | 0 |