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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,525 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,309 |
| 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.
32,245 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 991 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| — |
| — |
| 0 |
| AS401251US | STCHEALTH-002 - STChealth | — | — | 0 |
| AS401259US | JAJAP-TELECOMMUNICATIONS - Winnebago Tribe of Nebraska | — | — | 0 |
| AS401281US | ZXT-NETWORKS - ZXT Networks | — | — | 0 |
| AS401342US | STANFORD-MOBILE - Stanford University | — | — | 0 |
| AS401424US | BC-001 - Brello Cloud | — | — | 0 |
| AS401480US | BGEA - Billy Graham Evangelistic Association | — | — | 0 |
| AS401525US | WACHT-11-ASN1 - Wachter | — | — | 0 |
| AS401559US | ASN2-ONEOK-INC - ONEOK | — | — | 0 |
| AS401567US | COMTER - Comter Networks LLC | — | — | 0 |
| AS401573US | BHD-CLD1 - BlackHawk Data LLC | — | — | 0 |
| AS401625US | EXBAND-NETWORKS - Exband LLC | — | — | 0 |
| AS401651US | BLUE-ANT - Blue Ant, LLC | — | — | 0 |
| AS401660US | RCCA-209NET - SBC Wireless Inc | — | — | 0 |
| AS401865US | ITHACA-NETWORK - Ithaca Broadband LLC | — | — | 0 |
| AS402047US | SMARTWAVE-BROADBAND-AS - SmartWave Broadband LLC | — | — | 0 |
| AS402068US | OKGT - One King God Of Thunder LLC | — | — | 0 |
| AS402099US | UHNJ-ASN - University Hospital | — | — | 0 |
| AS402125US | UMASSAMHERST-SCIENCEDMZ-01 - University of Massachusetts - AMHERST | — | — | 0 |
| AS402178US | LIVELINK-ISP-5885981 - Live Link ISP LLC | — | — | 0 |
| AS402221US | NET - Exaserver LLC | — | — | 0 |
| AS402262US | NJJ-DATASERVICES-LLC - NJJ Data Services LLC | — | — | 0 |
| AS402268US | YUGS-2 - YUGS Networks Ltd. | — | — | 0 |
| AS402299US | 1600FREEMAN - 1600 Freeman LLC | — | — | 0 |
| AS402350US | ARCBOX - ArcBox | — | — | 0 |
| AS402445US | USGC - U.S. | — | — | 0 |
| AS402459US | LISTKIT-US - ListKit | — | — | 0 |
| AS402489US | LINKROUTE-US - LINKROUTE | — | — | 0 |
| AS402517US | DATAWORLDNET - Data | — | — | 0 |
| AS402526US | GW - Glintweaver | — | — | 0 |
| AS402574US | LIVINGSTON - Livingston | — | — | 0 |
| AS402638US | MESCLOUD - MES | — | — | 0 |
| AS402644US | ETLGL - Elite | — | — | 0 |
| AS402710US | NORTHERN-TEL-SUNBURST-MT - Northern | — | — | 0 |
| AS402726US | G-CLOUD-SITEA - Google | — | — | 0 |
| AS402741US | PHANOS - Phanos.AI | — | — | 0 |
| AS402757US | BEELEADS - BEELEADS | — | — | 0 |
| AS402777US | GLASSPEARL - GlassPearl | — | — | 0 |
| AS402788US | LEXPUBLIB-01 - Lexington | — | — | 0 |
| AS402792US | DVC-NET-1 - Divine | — | — | 0 |
| AS402868US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402945US | GRANULES-PHARMACEUTICALS-NET - Granules | — | — | 0 |
| AS402953US | CSD117 - Camas | — | — | 0 |
| AS402958US | PST-607 - PST | — | — | 0 |
| AS402999US | DFW-HAMWAN-26091 - CEF | — | — | 0 |
| AS403019US | DUNARRI-US - Dunarri | — | — | 0 |
| AS403023US | HILCO-AS - IPv4.Global, | — | — | 0 |