Phone Validation (with Connected and Disconnected check)

Validate phone numbers and identify if the phone is connected or disconnected with a phone activity score. <p><br/></p> The app provides the following attributes when queried for a phone number: <p><br/></p> - **Validity Status:** Shows whether a number is valid, assigned to a carrier. - **Phone Activity Score:** A 0-100 score that indicates phone activity and whether it is connected or disconnected. - **Carrier:** Identifies all U.S.-based carriers, including MVNOs. - **Linetype:** Provides seven unique line types, including mobile, fixed and non-fixed VoIP, landline, premium, toll-free, and voicemail service. - **Scalability and Speed:** Scale and speed to support enterprise mission critical applications. <p><br/></p> The trial offered through signing up for an API Key on the [Trestle Developer Portal](https://portal.trestleiq.com/) is free for up to 1000 queries. Self-serve or Enterprise plans are available for unlimited access.本数据集可用于验证电话号码，并结合通话活跃度评分判断号码当前处于接通还是断开状态。 当针对目标电话号码发起查询时，该服务将返回以下属性： - **号码有效性状态（Validity Status）**：用于标识该号码是否有效且已被运营商正式分配。 - **通话活跃度评分（Phone Activity Score）**：分值区间为0至100，用于体现号码的通话活跃度，并直接标识其当前处于接通还是断开状态。 - **运营商（Carrier）**：可识别所有美国本土运营商，包括移动虚拟网络运营商（MVNO，Mobile Virtual Network Operator）。 - **线路类型（Linetype）**：提供七种专属线路类型，涵盖移动线路、固定与非固定VoIP（Voice over Internet Protocol，网络电话）线路、固定电话线路、增值付费线路、免费热线线路以及语音邮箱服务线路。 - **可扩展性与响应速度（Scalability and Speed）**：具备支撑企业关键任务应用所需的扩展能力与响应速度。 用户可通过在[Trestle开发者门户（Trestle Developer Portal）](https://portal.trestleiq.com/)注册API密钥来获取免费试用额度，最多可发起1000次查询。此外还提供自助服务套餐与企业套餐，支持不限量查询访问。

搜集汇总

背景与挑战

背景概述

该数据集用于验证电话号码有效性，可检测号码连接状态（活跃/停用）并提供运营商、线路类型等信息。用户可通过API进行查询，免费试用支持1000次查询，另有自助服务和企业计划可选。