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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. | 211.2M | 21,260 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,265 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,727 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,958 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,328 |
| — |
| — |
| 0 |
| AS396541US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396564US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396578US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396586US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396603US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396607US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396619US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396631US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396632US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396636US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396642US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396655US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396675US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396739US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396746US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396747US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396766US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396780US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396781US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396786US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396791US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396802US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396816US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396823US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396827US | VRSN-AC50-340 - VeriSign Global Registry Services | — | — | 0 |
| AS396994US | REGED-ASN01 - RegEd | — | — | 0 |
| AS397002US | SHARPSPRING-INC - Sharpspring Inc. | — | — | 0 |
| AS397042US | SNIPINTERNET - Snip Internet LLC | — | — | 0 |
| AS397178US | WOVEN PLANET L5 - Woven By Toyota, U.S., Inc. | — | — | 0 |
| AS397180US | HRCAC-IGAMING-1 - Hard Rock Hotel and Casino Atlantic City | — | — | 0 |
| AS397198US | VRSN-AC28 - VeriSign Global Registry Services | — | — | 0 |
| AS397222US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397233US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397239US | SECURITYSERVICES - Vercara, LLC | — | — | 0 |
| AS397318US | CALIX-UT-SLC - Calix, Inc. | — | — | 0 |
| AS397319US | AHL-DFW1-02 - AVENU HOLDINGS, LLC | — | — | 0 |
| AS397404US | VMW-IAD03-COLO - Avago Technologies U.S. Inc. | — | — | 0 |
| AS397409US | MOBI - mobi | — | — | 0 |
| AS397464US | SAP-HYBRIS-WA1 - SAP America Inc. | — | — | 0 |
| AS397471US | DBS-VB-ASN-01 - Data Business Systems Inc. | — | — | 0 |
| AS397478US | DCA-SERVICES - DCA Services, Inc. | — | — | 0 |
| AS397482US | ZESTFINANCE - ZestFinance Inc. | — | — | 0 |
| AS397518US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS397520US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | — | — | 0 |
| AS397559US | RIH-2 - Rhode Island Housing | — | — | 0 |
| AS397577US | MGS-EXIT-HUB - MIC GLOBAL SERVICES, LLC | — | — | 0 |