Products

ZelNum is a B2B bulk verification platform for cleaning and validating phone number and contact lists. It helps teams upload CSV or TXT files, run bulk phone validation, carrier lookup, WhatsApp, Telegram, Viber and other account-signal checks, and export cleaner data for outreach, CRM hygiene, fraud reduction, and messaging workflows. BulkChecker supports both no-code batch uploads and API-based verification workflows.

OptimalDial's Answer Intent analyzes phone numbers on your outbound call list to identify which contacts are likely to pick up calls from unknown numbers – before your reps ever dial. Upload a CSV from any data source (Apollo, ZoomInfo, Cognism, or any other provider), and get back a prioritized list with each contact labeled: Likely Answer, Likely Voicemail, Call Screening, or Not Mobile. Answer Intent works by verifying mobile numbers via carrier lookups, then collecting real behavioral data

SMSCode is a virtual phone number service for SMS verification across 200+ countries. Compatible with Google, WhatsApp, Telegram, Facebook, TikTok, and 500+ platforms. Pricing starts from $0.0044 per activation with no subscription required. Features include a full REST API for developers and bulk users, instant OTP delivery, and real non-VoIP numbers for higher success rates. Trusted by 100,000+ active users worldwide.

Get SMS Online is a temporary phone number service for SMS verification. Get private numbers for reliable verification across 700+ online services. Free public numbers available for testing or verifying less strict services. API available for developers, businesses, and resellers.

Real-time phone validation API for US & Canada: carrier and line type from live carrier data, portability, deliverability, GeoIP and timezone - plus TCPA litigator screening and a free state do-not-call scrub.

TellABot is a service that protects user privacy by providing temporary US phone numbers for receiving SMS online. A selection of free numbers is available for testing.

SubscriberVerify enables SMS marketers, telemarketers, and customer service teams to verify phone numbers in real-time while screening for legal compliance risk. Every lookup returns carrier data, line type (mobile, landline, VoIP), SMS deliverability status, and TCPA litigator flags—all in seconds. Upload via CSV or integrate with API. Results sync seamlessly to your CRM, SMS platform, or dialer. Typical customers save 5–15% monthly on wasted SMS delivery costs within the first month.

Orisift is one API for checking the contact data your forms and systems collect. A single POST /v1/lookup call checks phone numbers (format, numbering plan and ranges reserved for fiction), email domains (MX, Null MX, DNS and a list of 8,986 known throwaway-provider domains), IP addresses (reserved and special-purpose ranges, reverse DNS) and domains (A, MX, NS, SPF and DMARC records). Each lookup returns one of four verdicts, verified, risky, rejected or insufficient_evidence, along with the ev

GhostSMS lets you send anonymous SMS to 100+ countries with number masking. Pay with credits (no subscription). Available on Android and web.

DataTools is an Australian software solutions company specializing in data quality enhancement for organizations in Australia and New Zealand. With nearly three decades of experience, DataTools offers a suite of products designed to ensure the accuracy and reliability of address, email, and phone data. Their solutions are accessible via cloud services, APIs, or desktop platforms, catering to various business needs. Key Features and Functionality: - Address Validation: Automatically format, cle