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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 | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 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 | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| — |
| — |
| 0 |
| AS11276US | TEMPUS - Tempus Technologies, Inc | — | — | 0 |
| AS11371US | UUNET-AS-11371 - Verizon Business | — | — | 0 |
| AS11445US | ASN1-SCF - State Compensation Fund | — | — | 0 |
| AS11614US | VIP-CONNECT - iBasis, Inc. | — | — | 0 |
| AS11697US | NET-SUPERNEWS - SuperNews | — | — | 0 |
| AS11764US | PANAMSAT-NET - PanAmSat Corporation | — | — | 0 |
| AS11937US | TRX-ARIN - TRX Inc. | — | — | 0 |
| AS12003US | INTEGRATELECOM - Allstream Business US, LLC | — | — | 0 |
| AS12078US | ONEEIGHTY-NET2 - Visionary Communications LLC | — | — | 0 |
| AS12124US | FCB01 - FAIRFIELD COUNTY BANK | — | — | 0 |
| AS12188US | Q9-AS - Equinix, Inc. | — | — | 0 |
| AS13323US | FMR-AS2 - FMR LLC | — | — | 0 |
| AS13328US | THE-GAP-INC - Gap, Inc. Direct | — | — | 0 |
| AS13364US | KHOROS-PUB-01 - Khoros, LLC | — | — | 0 |
| AS13369US | NURIX - Nurix, Inc. | — | — | 0 |
| AS13399US | MICROSOFT-CORP-MSN-AS-2 - Microsoft Corporation | — | — | 0 |
| AS13546US | INNOVATIVE-INTERFACES-INC - Innovative Interfaces, Inc. | — | — | 0 |
| AS13562US | GTENS - Verizon Business | — | — | 0 |
| AS13674US | FAIRPO-3 - Fidium | — | — | 0 |
| AS13769US | DPS-HOLDINGS-INC - DPS Holdings Inc. | — | — | 0 |
| AS13899US | KRICKET - Kricket Internet Services LLC | — | — | 0 |
| AS13902US | XAXIS-AS2 - mPlatform LLC | — | — | 0 |
| AS13912US | DATA443-COMMTOUCH-INC - Data443 Risk Mitigation, Inc. | — | — | 0 |
| AS13981US | PARINITA-TECH-01 - Parinita Technologies and Consultancy LLC | — | — | 0 |
| AS14024US | AS14024 - Light Speed Design/Build/Manage | — | — | 0 |
| AS14039US | BTCONF-VIDEO - BT Conferencing | — | — | 0 |
| AS14248US | US-NORWOOD - Instron | — | — | 0 |
| AS14302US | INFINIGON - Infinigon, Inc. | — | — | 0 |
| AS14375US | SUNGENGY-NET - Fidelity National Information Services, Inc. | — | — | 0 |
| AS14435US | PAA - Plains All American Pipeline, L.P. | — | — | 0 |
| AS14451US | GEICO02 - GEICO | — | — | 0 |
| AS14510US | COREEXPRESS - CoreExpress | — | — | 0 |
| AS14520US | AS-TBWACDNY - TBWA Chiat Day | — | — | 0 |
| AS14685US | BAC-CFC-CW-CREDIT1 - Bank of America, National Association | — | — | 0 |
| AS14781US | YAHOO - Yahoo Holdings Inc. | — | — | 0 |
| AS14787US | ASN1GUARD23ATTWINSTAR - Guardian Industries Corp | — | — | 0 |
| AS14800US | SKYW-AS2 - SKYWEST AIRLINES, INC. | — | — | 0 |
| AS14804US | AIC-ASN-US - Advent International Corporation | — | — | 0 |
| AS14889US | HT-AS2 - Hawkeye Telephone Company | — | — | 0 |
| AS14900US | FREECLEAR - Free & Clear, Inc. | — | — | 0 |
| AS14981US | KIRKLAND-ELLIS - Kirkland & Ellis LLP | — | — | 0 |
| AS15003US | LEASEWEB - Leaseweb USA, Inc. | — | — | 0 |
| AS15006US | KYN-GTS - Kyndryl | — | — | 0 |
| AS15046US | SU-COLO - Syracuse University | — | — | 0 |
| AS15133US | EDGECAST - Edgecast Inc. | — | — | 0 |
| AS15259US | ATT-ITSNCS-1 - AT&T Solutions ITS/NCS | — | — | 0 |