Losing your SIM card can throw your daily life into chaos, especially when that number is linked to bank accounts, GCash or Maya wallets, government services, work communications, or family group chats. Whether it disappeared during a commute, was stolen in a crowded area, or simply went missing with your phone, the urgent questions are usually the same: How do I stop anyone from using it for fraud? How do I get my number back with minimal disruption? An Affidavit of Loss for a lost SIM card is the key legal document that lets you formally declare the loss under oath, request deactivation of the old SIM to protect against misuse, and obtain a replacement with the same mobile number from your telecom provider.

This article explains what the affidavit is, its legal foundation in Philippine law, when and why you need one, the exact practical steps to prepare and use it, telco-specific requirements, special considerations for foreigners and overseas Filipinos, common pitfalls that delay ordinary people, and clear answers to the questions most Filipinos and expats actually search for.

What is an Affidavit of Loss for a Lost SIM Card?

An Affidavit of Loss is a sworn written statement in which you declare, under oath before a notary public, that your SIM card (identified by mobile number, telecom provider, and ideally the ICCID or serial if known) has been lost or stolen. It typically includes the date, place, and circumstances of the loss, confirms you are the registered owner, states that the SIM has not been sold, transferred, or pledged to anyone, and requests the telecom company to deactivate the lost SIM and issue a replacement with the same number.

It is not a police complaint or a court filing. It is an administrative and protective tool that demonstrates good faith and ownership to your telecom provider (Globe, Smart, DITO, or others) and helps them comply with subscriber protection rules. Many people also use it to support requests with banks, e-wallets, or government agencies when OTPs or verifications suddenly fail.

Legal Basis Under Philippine Law

The affidavit draws its authority from several key laws and rules that govern sworn declarations and telecommunications in the Philippines.

The 2004 Rules on Notarial Practice (A.M. No. 02-8-13-SC) set the formal requirements: the affiant must appear personally before a commissioned notary public, present competent evidence of identity (usually one or two government-issued IDs with photo and signature), sign the document in the notary’s presence, and have a proper jurat or acknowledgment. The notary records it in the notarial register and affixes the required details (Doc. No., Page No., Book No., Series of the year).

The Civil Code of the Philippines (Republic Act No. 386) provides the underlying principles of good faith, obligations, and declarations that make such sworn statements reliable for administrative purposes.

Republic Act No. 11934, the SIM Card Registration Act of 2022, and its Implementing Rules and Regulations are directly relevant. They require all SIMs to be registered with accurate subscriber information and mandate that public telecommunications entities (PTEs) maintain user-friendly mechanisms for reporting lost or stolen SIMs. Upon verified reporting, telcos must immediately bar the SIM (stopping voice, SMS, and data) and permanently deactivate it either upon issuance of a replacement or within 24 hours, whichever comes first. They must also update the central SIM registration database. Prompt reporting helps prevent SIM-swapping fraud and protects both the subscriber and the network.

The Revised Penal Code, Article 183, makes false statements in an affidavit punishable as perjury, underscoring the need for complete honesty. The Data Privacy Act of 2012 (RA 10173) governs how telcos handle your personal information during the replacement process.

For cases involving a lost phone as well, the National Telecommunications Commission (NTC) provides a specific Affidavit of Ownership and Loss with Undertaking (Form No. NTC 1-24) that requests blocking of both the IMEI of the handset and the SIM number across carriers, with an undertaking that you will not hold the NTC or telcos liable for actions taken based on your declaration.

When Do You Need One?

You need an Affidavit of Loss primarily when requesting a replacement SIM with the same number from your telecom provider. Globe and most other carriers require it for lost or stolen SIMs, especially prepaid lines or when proof of ownership is limited. Smart is sometimes more flexible with postpaid accounts but still often requests it for security.

It is also highly useful (and sometimes explicitly required) when:

Your number is linked to financial accounts or e-wallets and you need to prove you no longer control the old SIM.
You want to support a police investigation into suspected SIM swapping or unauthorized use.
You are dealing with government agencies or employers that require formal proof the number changed hands only through official replacement.
You are requesting IMEI blocking for a lost phone.

If the loss was due to theft or robbery, file a police blotter first or alongside the affidavit. For simple misplacement (e.g., dropped in a jeepney and never recovered), the affidavit alone is usually sufficient for telco purposes.

Acting quickly matters. Under RA 11934 rules, reporting the loss promptly allows the telco to bar the SIM immediately, reducing the window for fraud that can drain linked wallets or enable identity theft.

Step-by-Step Practical Guide

1. Act Immediately – Report the Loss

Contact your telco’s hotline or app right away (Globe 211 or *143#, Smart *888 or 888, DITO app or hotline) and request temporary barring if available. Note the reference number. This is the first layer of protection.

2. Draft the Affidavit

You can draft it yourself using a standard template or have a lawyer or law office prepare it (many offer affordable packages that include notarization). Use legal-size paper, clear font (Arial or Times New Roman, size 11–12), and double spacing for readability.

Key elements to include:

Your full name, age, civil status, citizenship, and complete address.
The exact mobile number, telecom provider, and account type (prepaid or postpaid).
Date, place, and detailed circumstances of the loss (be specific but truthful — “while commuting via jeepney along EDSA” is better than vague language).
Statement that you are the registered owner, the SIM has not been sold or transferred, and you have no knowledge of its current whereabouts.
Confirmation that you have made diligent efforts to locate it.
Clear request for deactivation of the lost SIM and issuance of a replacement with the same number.
Undertaking to hold the telco free from liability for any prior or subsequent unauthorized use once they act on your request.
Optional but recommended: Data privacy consent clause and reference to any police blotter filed.

Sign only in the presence of the notary.

3. Notarize the Affidavit

Bring the unsigned document, at least one (preferably two) original valid government-issued IDs, and photocopies. Any duly commissioned notary public can handle it — law offices, malls, or municipal halls often have one available. Notarial fees typically range from ₱200 to ₱500 outside Metro Manila and ₱500 to ₱1,000 in central business districts, plus documentary stamp tax (around ₱2 per page in some cases). The process usually takes 15–30 minutes if documents are complete.

4. Prepare Supporting Documents

Common requirements across providers:

Original notarized Affidavit of Loss (plus 1–2 photocopies).
One or two valid government-issued IDs (originals + photocopies) matching your SIM registration details.
Proof of ownership: SIM packaging or bed, PUK code card, original purchase receipt, postpaid billing statement, or recent load/reload history.
Police or barangay blotter (strongly recommended if theft is involved or if the telco’s fraud team flags the request).
Selfie or recent photo (sometimes required by Globe during in-store verification).
If someone else will process it for you: Notarized Special Power of Attorney or Authorization Letter plus IDs of both parties.

5. Visit Your Telecom Provider’s Service Center or Store

Personal appearance is usually mandatory for Globe and Smart. DITO sometimes offers app-based requests with courier options for documents. Locate the nearest store via the provider’s website or app. Expect to:

Present all documents.
Answer verification questions (last load amount/date, frequent contacts, account details).
Pay the replacement fee (typically ₱50–₱300 depending on the provider and whether it includes initial load credit; postpaid replacements are often free or low-cost).
Receive the new physical SIM (or eSIM activation instructions).

Activation usually happens within 15 minutes to 24–48 hours. You will receive an SMS confirmation once the new SIM is mapped to your number and the old one is deactivated in the registration database.

6. Secure Linked Accounts Immediately

Once the new SIM is active, update or re-verify your number in GCash, Maya, bank apps, SSS, PhilHealth, BIR, email, and any 2FA-enabled services. Delaying this step is one of the most common sources of continued problems.

Telco-Specific Requirements and Realities

Globe generally requires a notarized Affidavit of Loss with a clear description of the loss circumstances, two government IDs, and proof of ownership (SIM bed or GCash card if available). They may impose additional checks or a short activation delay for high-risk accounts (e.g., those linked to GCash). Postpaid replacements through representatives have stricter rules effective 2025.

Smart follows a similar process. While some older accounts or postpaid lines may face lighter requirements in practice, presenting an affidavit strengthens your request and speeds verification.

DITO tends to be more digital-friendly, with possible app appointments and courier options, but still requires the notarized affidavit for loss cases.

Fees and exact processing times can change, so confirm on the provider’s official help page or by calling before visiting. Major stores in cities process requests the same day; provincial or smaller outlets may take longer.

Special Considerations for Foreigners and OFWs

Foreigners and overseas Filipinos follow essentially the same process but with adjusted ID requirements. Use your Philippine passport together with an Alien Certificate of Registration (ACR) I-Card (if you are a resident) or other valid foreign ID accepted by the notary and telco. Notaries may charge slightly higher fees for foreign documents.

If you are abroad, you can execute the affidavit before a Philippine Embassy or Consulate officer (who can notarize) or before a local notary and have it apostilled under the Apostille Convention for use in the Philippines. Some telcos accept authorized representatives with a properly notarized Special Power of Attorney.

eSIM options are increasingly available and can simplify replacement once the affidavit and verification are complete. Always verify current acceptance of foreign IDs directly with the telco, as policies evolve with stricter SIM registration enforcement.

Common Pitfalls and How to Avoid Them

Many people experience delays because the affidavit lacks specific details about the loss or because they arrive at the store without proof of ownership. Telcos reject vague or incomplete documents to comply with anti-fraud rules under RA 11934.

Another frequent issue is waiting too long to report the loss. SIM-swapping incidents can happen within hours, leading to unauthorized transfers from linked wallets. Acting within the same day or the next significantly reduces this risk.

Remote areas often have fewer notaries and telco stores, requiring travel. Plan ahead or ask a trusted family member with a notarized authorization to assist.

Using a generic online template without customizing the facts (exact number, date, circumstances, provider) is a common mistake that leads to rejection. Personalize every detail and be truthful — false statements expose you to perjury liability.

Finally, after getting the new SIM, many forget to immediately update linked services, causing continued OTP failures and frustration.

Police Report or Barangay Blotter vs. Affidavit

A police blotter is the official record of a theft or loss incident filed at a PNP station. It is free or low-cost and carries strong evidentiary weight, especially if you later need to file insurance claims, pursue criminal complaints for SIM swapping, or deal with disputes.

For pure loss (no theft involved), many telcos accept a well-drafted notarized Affidavit of Loss without a police report. However, filing both is often the safest and fastest route in practice — the blotter supports the affidavit and gives you an official reference number to present at the store.

Barangay certifications can serve as supplementary evidence but are generally not a substitute for a notarized affidavit when dealing with telcos.

Frequently Asked Questions

Do I really need an affidavit of loss to replace a lost SIM card?
Most major providers, especially for prepaid lines or when ownership proof is limited, require a notarized affidavit to process a replacement with the same number and to comply with RA 11934 subscriber verification rules. Some postpaid accounts may have slightly lighter requirements, but bringing one almost always speeds things up and reduces questions.

Where can I get an affidavit of loss notarized?
Any commissioned notary public — law offices, certain mall service centers, or municipal/city halls. Bring your valid ID(s). The process is quick if your draft is ready.

How much does it cost overall?
Notarization typically costs ₱200–₱1,000 depending on location. Replacement SIM fees range from ₱50 to around ₱300 (sometimes including initial load credit). Police blotter is usually free. Total out-of-pocket for most people is under ₱1,500 if done efficiently.

How long does the whole process take?
You can often complete notarization and telco processing in one day if you prepare documents in advance. Activation of the new SIM usually happens within 15 minutes to 48 hours. Full restoration of linked services may take an additional day as you update accounts.

Can a foreigner or OFW do this?
Yes. Use your passport and ACR I-Card (if applicable). If abroad, execute before a Philippine consulate or apostille a locally notarized affidavit. Many OFWs successfully authorize relatives in the Philippines with a notarized SPA.

What if I also lost my phone? Should I block the IMEI?
Yes. In addition to the SIM affidavit for replacement, consider filing the NTC’s specific Affidavit of Ownership and Loss with Undertaking to request IMEI blocking across networks. This prevents the lost device from being used on any Philippine network.

Is a police report enough instead of an affidavit?
A police blotter is excellent supporting evidence, especially for theft cases, but telcos generally still want the notarized affidavit for their internal records and to update the SIM registration database properly.

What happens if I don’t report the lost SIM promptly?
The old SIM remains active longer, increasing the risk of SIM swapping, unauthorized transactions, or even liability concerns if it is used in illegal activities. RA 11934 emphasizes timely reporting to protect subscribers and the network.

Can I request replacement through the app or online only?
Some providers offer initial requests or appointments via app, but for lost SIM cases requiring an affidavit, in-person verification at a store or authorized center is still the standard and most reliable route.

How do I protect myself from SIM swapping in the future?
Enable SIM PIN or lock features on your phone, use eSIM where available, monitor linked accounts regularly, and consider secondary verification methods (email or authenticator apps) for critical services.

Key Takeaways

An Affidavit of Loss is your primary tool to formally report a lost SIM, protect against fraud, and secure a replacement with the same number under RA 11934 rules.
Prepare a detailed, truthful affidavit, notarize it promptly with valid ID, gather proof of ownership, and visit your telco store in person for fastest processing.
Act the same day or next day — immediate barring of the lost SIM is the best defense against SIM-swapping and financial loss.
File a police blotter alongside the affidavit when theft is involved or when you want stronger official documentation.
Foreigners and OFWs can complete the process with passport/ACR IDs or through authorized representatives and apostilled documents when abroad.
After replacement, immediately update every linked account and service to restore full functionality.
Keep copies of the affidavit, new SIM details, and confirmation messages for your records.

Losing a SIM card is stressful but manageable when you follow the established process. With the right documents and timely action, you can regain control of your number and minimize disruption to your personal and financial life.