OnePatch
ZelNum
CheckNumber.AI
Numverify
numberchecker.ai
Lookup by Twilio
WA-Filter
Veriphone
OnePatch is multi-purpose software solution for e-commerce retailers who sell on multiple online selling platforms. With OnePatch, sellers have the solution to organise their product stock, manage their online orders, shipping and accounts all from one simple and effective system, saving valuable time and expanding business growth.
ZelNum is a self-service bulk verification and data-quality platform for phone intelligence, messaging apps, social and consumer accounts, and crypto exchanges.
Upload CSV or TXT lists to check phone status, live activity, carrier and line type, HLR-style network signals, phone model, and duplicate or invalid records.
Run phone- and email-based account-signal checks across WhatsApp, Telegram, Facebook, TikTok, iMessage, RCS, Zalo, LINE, Viber, Instagram, LinkedIn, Snapchat, Signal, BAND, Amazon, Apple ID, and Microsoft, together with supported crypto exchanges such as Binance, KuCoin, CoinW, and HTX.
Depending on the product, workflows can include activity, account-age, username, and selected profile signals. Export structured segments for list cleaning, CRM preparation, messaging operations, community management, and data workflows.
Developers can use task-based APIs for batch submission, status monitoring, and result retrieval.
OnePatch
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ZelNum's answer:
ZelNum supports multiple verification types, usage-based pricing, downloadable result segments, and task-based API processing without requiring a subscription.
ZelNum's answer:
Marketing teams, CRM operators, developers, agencies, community managers, and businesses that need to clean or enrich large contact lists.
ZelNum's answer:
ZelNum combines phone validation, carrier lookup, WhatsApp and Telegram checks, and other account signals in one bulk CSV/TXT and API workflow.