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Masking SMS

How to get a masking sender ID in Bangladesh

By the Amar SMS team6 min read

Quick answer

To get a masking sender ID in Bangladesh, pick a sender name of up to 11 English letters or numbers, submit it with your NID and a valid trade license through your SMS provider, and wait for the mobile operators to approve it, usually within a few working days. Registration is free with Amar SMS, and masking SMS then costs from ৳0.49 per SMS.

Key takeaways

  • Sender name: up to 11 English letters or numbers, no spaces.
  • Documents: NID and a valid trade license. Schools may also need an authorisation letter.
  • The mobile operators approve the name, usually within a few working days.
  • Registration is free with Amar SMS; you pay only for SMS sent (from ৳0.49).
  • Until the name is approved, you can already send non-masking SMS.

What is a masking sender ID?

A masking sender ID is the name that appears instead of a phone number when your customers receive your SMS, for example “AmarShop”. It makes messages recognisable and harder to fake. Learn how it compares with regular SMS in masking vs non-masking SMS.

Rules for choosing your sender name

  • Up to 11 characters. “AmarShop” (8) works; “AmarShopOnline” (14) is too long.
  • English letters and numbers only. No Bangla, spaces or symbols.
  • Match your business. Use your brand or business name as it appears on your documents, or a clear short form of it.
  • Don't imitate others. Names that look like another company, a bank, a mobile operator or a government body are likely to be rejected.
Sender nameLikely resultWhy
AmarShopOKMatches the brand, 8 characters
ABCBankOK if you are ABC BankThe name must belong to your business
Amar ShopChange itContains a space
AmarShopBD24xChange it13 characters
GovtNoticeLikely rejectedLooks like a government body

Documents you need

DocumentWho needs it
NID number and a clear scan or photoEveryone opening an account
Valid trade licenseEveryone applying for a masking name
Authorisation letter on letterheadEducational and some other institutions

Step by step: register your masking name

  1. 1

    Create your account

    Register at amarsms.com/register and verify your phone and email.

  2. 2

    Upload your NID

    Add your NID number and a clear scan or photo for account verification.

  3. 3

    Submit your sender name

    Enter the name (up to 11 English letters or numbers) and upload your trade license.

  4. 4

    Operator approval

    We submit the name to the mobile operators. Approval usually takes a few working days.

  5. 5

    Recharge and send

    Once approved, choose your name as the sender in the dashboard or the API and start sending.

Ready to begin? Create your account. Registration is free.

How long does it take and what does it cost?

Approval is done by the mobile operators, so the time depends on them. It usually takes a few working days after your documents are verified. There is no registration fee with Amar SMS. You pay only for the SMS you send: masking SMS costs ৳0.49 to ৳0.58 per SMS, depending on your plan. See the price list.

Using your sender ID after approval

  • Dashboard: pick your sender name when you write a message or campaign.
  • SMS API: pass the name in the sender_id field of your request (see the SMS API).
  • OTP: send verification codes from your brand name on the priority route with OTP SMS.

Sources and references

  1. Amar SMS: Masking SMS (sender name rules, documents, approval)
  2. Amar SMS: Create account (documents to keep ready)

Masking SMS

Frequently asked questions

How long can a masking sender ID be?

Up to 11 characters, using English letters and numbers only, with no spaces. For example “AmarShop” or “ABCBank”.

What documents are needed for masking SMS in Bangladesh?

Your NID and a valid trade license. Educational and some other institutions may also need an authorisation letter on their letterhead.

How long does masking approval take?

Usually a few working days after your documents are verified, because each mobile operator approves the name.

Is there a fee for masking registration?

Not with Amar SMS. Sender ID registration is free; you pay only for the SMS you send, from ৳0.49 per SMS.

Can I send SMS while my masking name is being approved?

Yes. Once your account is verified you can send non-masking SMS from a regular number while the masking name is pending.

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