Legitimate and Regulated Access:

[nusratjahan]

Telecommunication Providers (ISPs/Mobile Operators): When you register for a phone number (both mobile and landline) in Bangladesh, you are required to provide personal identification (like your National ID Card - NID) and your address. This information is held by the service provider (e.g., Grameenphone, Robi, Banglalink, BTCL).
Legal Process: Law enforcement agencies (e.g., Bangladesh Police) can, with proper legal authorization (like a court order or warrant), request subscriber information, including belize whatsapp database addresses, from telecommunication companies for investigations related to crime or national security. This is a regulated process and not accessible to the general public.
National ID (NID) Linkage: In Bangladesh, mobile SIM cards are strictly linked to NID cards through biometric verification (fingerprints). Your NID contains your address. While the BTRC (Bangladesh Telecommunication Regulatory Commission) primarily uses this for accountability and preventing illegal activities, it means there's a strong governmental linkage between your phone number and your registered address.
Official Directories/Databases (Limited): For landline numbers (BTCL), there might be some older, publicly available directories, but these are increasingly outdated and less common. Government and corporate telephone directories might list official numbers with corresponding office addresses, but not personal residential addresses.
2. Semi-Public or Indirect Methods (Less Reliable/Ethical):

Online "Reverse Phone Lookup" Services: There are websites and apps (like Truecaller, for example, which is popular in Bangladesh) that offer "reverse phone lookup" services. These services often rely on:
Crowdsourced Data: Users contribute contact information (including names and sometimes locations) from their phonebooks.
Publicly Available Data: Scraping data from publicly accessible sources (though this is often legally questionable).
Limited Accuracy for Addresses: While these services can often show a name associated with a number (if available), they are much less reliable for providing precise residential addresses, especially for mobile numbers. They might give a general city or region.
Data Breaches: Unfortunately, data breaches can expose linked information. There have been instances globally (and in Bangladesh) where large databases containing phone numbers, names, and addresses have been compromised.
Social Engineering/Scams: Individuals with malicious intent might try to use social engineering tactics to trick you into revealing your address once they have your phone number.
Direct Interaction: If you frequently use your phone for transactions, deliveries, or services where you provide your address (e.g., online shopping, food delivery apps, ride-sharing), those entities will have your phone number linked to your address in their own databases.
3. Privacy Considerations:

Privacy of Communication: The Constitution of Bangladesh provides for the right to privacy of correspondence and other means of communication. While this doesn't explicitly prevent the storage of your address with your phone number by authorities, it generally protects against unauthorized public disclosure.
Data Protection Laws: Bangladesh is developing its legal framework around data protection, which aims to regulate how personal data (including phone numbers and addresses) is collected, stored, and used.
In summary:

For the average person or entity, your telephone number in Bangladesh does not directly or easily lead to your precise residential address through publicly accessible means. However, for authorized government and law enforcement agencies, or in cases where you have provided your phone number along with your address to a service provider, the linkage exists in regulated databases. "Reverse lookup" apps might give you a name, but rarely a specific address, especially for mobile numbers.