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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 | 21,268 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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 | 3,721 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,955 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,300 |
| — |
| — |
| 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 |
| AS14607US | OTA - OTA Management LLC | — | — | 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 |
| AS14924US | MERIT-AS-30 - Merit Network 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 |
| AS15273US | KDDIA-USPEN - KDDI America Inc. | — | — | 0 |
| AS16447US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16500US | APCI - Air Products & Chemicals, Inc. | — | — | 0 |
| AS16530US | POWERSHIFT - Power Shift Computer Services, Inc. | — | — | 0 |
| AS16572US | ATT-MOBILITY-LLC-AS16572 - AT&T Enterprises, LLC | — | — | 0 |
| AS16584US | IONSWITCH - IonSwitch, LLC | — | — | 0 |
| AS16585US | SUL-4-AS - STORCK USA | — | — | 0 |