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SMS APIs

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Thumbnail showing a phone screen labeled ‘Likely-SCAM’ for OTP SMS in Singapore alongside text about avoiding scam labels without a local entity

How to Avoid “Likely-SCAM” for OTP SMS in Singapore Without a Local Entity

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November 28, 2025

Illustration showing a phone screen with an OTP input and the message “Your OTP is 3491,” surrounded by country flags including the US, India, Singapore, Malaysia, UAE, and Indonesia, representing how a single OTP verification API can send codes to multiple countries.

How to Send OTPs to Multiple Countries from One OTP Verification API

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November 24, 2025

Sending OTPs in Vietnam using VerifyNow OTP API without brandname sender ID registration, showing a smartphone with a secure code and Vietnam flags.

Send OTPs in Vietnam Without a Brandname Sender ID Registration using VerifyNow OTP API

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November 13, 2025

Illustration showing OTP code entry and countdown timer representing OTP expiry duration.

How to Configure OTP Expiry and Resend Logic in Your 2FA OTP API

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November 11, 2025

Illustration showing a smartphone displaying a four-digit OTP code “1234” beside a dollar coin icon, symbolizing cost and performance comparison between 10DLC, Toll-Free, and Short Code messaging options for sending OTPs in the USA.

Choosing Numbers for 2FA OTP: 10DLC vs. Toll-Free vs. Short Code in the USA

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October 29, 2025

Illustration showing bulk SMS delivery via API without getting blocked, with mobile phones, message icons, and warning symbols, used in Message Central blog on sending bulk SMS safely.

How to Send Bulk SMS via API Without Getting Blocked

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October 1, 2025

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