Guides
Bulk WhatsApp number check for Indian customer lists (+91)
Check an Indian list for WhatsApp: turn 0, 91, 091 and Hindi-digit cells into +91, keep 6–9 mobiles, get a free estimate, and follow DPDP Act and TRAI rules.
16 min read
Articles tagged “Bulk jobs”
24 articles.
Guides
Bulk WhatsApp number check for Nigerian customer lists (+234)
Check a Nigerian list for WhatsApp: turn 080, 081, 070, 090 and 091 numbers into +234, fix 00234 cells, get a free estimate, and follow NCC and NDPA rules.
15 min read
Guides
Bulk WhatsApp number check for Philippine customer lists (+63)
Check a Philippine customer list for WhatsApp and Viber: turn 09XX into +63 9XX, keep the 08 mobile blocks, get a free estimate, follow the Data Privacy Act.
17 min read
Guides
Bulk WhatsApp and Zalo number check for Vietnamese customer lists (+84)
Check a Vietnamese list for WhatsApp and Zalo: convert old 11-digit 01X numbers, turn 09X into +84 9X, get a free estimate and follow the 2026 data law.
17 min read
Guides
Bulk WhatsApp number check for Bangladeshi customer lists (+880)
Check a Bangladeshi customer list for WhatsApp: turn 01X, +88 0 and Bengali-digit cells into +880, dedupe, get a free estimate, and follow the 2026 data law.
13 min read
Guides
Bulk WhatsApp number check for Malaysian customer lists (+60)
Check a Malaysian customer list for WhatsApp: fix 01X, 011 and 60 formats to +60, dedupe, get a free estimate, and follow the PDPA 2010 and its 2024 amendments.
13 min read
Guides
Bulk WhatsApp number check for Mexican customer lists (+52)
Check a Mexican customer list for WhatsApp: drop the old +52 1, set the country, dedupe, plan for the 2026 line registry, and follow the new 2025 LFPDPPP.
14 min read
Guides
Bulk WhatsApp number check for Pakistani customer lists (+92)
Check a Pakistani customer list for WhatsApp: turn 03XX, 92 and 3XX cells into +92, drop dead 03 blocks, get a free estimate, and follow PTA and PECA rules.
14 min read
Guides
Bulk WhatsApp number check for Indonesian customer lists (+62)
Check an Indonesian customer list for WhatsApp: fix 08, 62 and 8 formats to +62, dedupe, get a free estimate, and stay within the PDP Law (UU 27/2022).
13 min read
Guides
How to fix a low Meta Custom Audience match rate on a phone list
Why phone lists match poorly in Meta Custom Audiences: missing country codes, dead and recycled numbers, landlines. The format Meta expects and a cleanup order.
11 min read
Deliverability
Number recycling and phone-list decay: how often to re-check your list
Disconnected phone numbers are reassigned to new people, so every list decays. How recycling works, what the US rules say, and a re-check cadence recipe.
7 min read
Guides
Yahoo email checker: how to check if a Yahoo Mail address exists, one at a time or in bulk
To check if a Yahoo email exists, send a test message and read the bounce, or run an account check in bulk. SMTP probes fail at Yahoo; here is why.
15 min read
Fraud prevention
How to check if a phone number has a Netflix, Amazon or Microsoft account (and what it tells a fraud team)
You can check whether a Netflix, Amazon or Microsoft account uses a phone number (yes, no or unknown), but never see the account itself. How fraud teams use it.
10 min read
Deliverability
How much does an HLR lookup cost? HLR lookup pricing explained (2026)
HLR lookup prices per number and per 1,000: what drives the cost, the pricing models on the market, hidden fees, and how to estimate a list before you pay.
7 min read
Guides
Free phone carrier lookup: how to find a number's carrier (and when free isn't enough)
Free carrier lookup methods (prefix data, regulator tables, web tools), why they fail for ported numbers, and when a paid live lookup is worth it.
10 min read
Guides
How to check if a Gmail, Yahoo or Outlook account exists without sending an e-mail
Check if a Gmail, Yahoo or Outlook account exists without sending mail: why SMTP probes fail at big providers, address aliases, bulk lists and privacy.
9 min read
Guides
How to check if a phone number has a Facebook or Instagram account
Check if a phone number has a Facebook or Instagram account: a yes, no or unknown answer with a date, never a profile. Real time or bulk, with WhatsApp.
10 min read
Guides
Bulk Telegram number check for Asian customer lists (Indonesia, India, Philippines, Vietnam, Hong Kong)
Check Telegram numbers in bulk for Indonesia, India, the Philippines, Vietnam, Hong Kong and more: normalising Asian formats, privacy and unknowns, cost caps.
7 min read
Guides
Bulk WhatsApp number check: how to verify a customer list (CSV upload or API)
Check WhatsApp numbers in bulk: prepare a CSV, get a free estimate, cap the cost, run the job in the dashboard or API, and act on each answer.
8 min read
Guides
How to check if a phone number has an Apple ID (single and bulk)
How to check if a phone number has an Apple ID (Apple Account), one or in bulk: what yes, no and unknown mean, how it differs from iMessage, API examples.
7 min read
Guides
Signal number checks: what's possible, and what isn't
A Signal number lookup can only say whether a findable Signal account uses a number you hold, never whose it is. What the check sees and when not to use it.
7 min read
Guides
How to check if a phone number uses iMessage
To check if a number uses iMessage, run a bulk iMessage check (yes, no or unknown). Find your own iMessage ID in Settings, plus blue vs green bubbles and RCS.
7 min read
Deliverability
RCS capability check: what it tells senders before they send
To test if a number supports RCS, run a capability check: capable, not capable or unknown, before you send. Plus test numbers, iPhone support and SMS fallback.
9 min read
Deliverability
How to clean a phone number list in bulk, step by step
A step-by-step way to clean a phone list with the MobileValidate jobs API: free estimate, dedupe, invalid rows, capped cost, CSV download and data purge.
8 min read
