# Tra cuu chuyen mang giu so — Kiem tra chuyen mang giu so

> Mobile number portability lookup utility to identify current carrier. (iPhone/iPad app by Tu Phan.)

- Source: https://appshunter.io/ios/app/tra-cuu-chuyen-mang-giu-so/id1448602745 (this page in markdown: same URL + `.md`)
- Developer: [Tu Phan](https://appshunter.io/developer/1448602744)
- Category: Utilities, Business
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 9.0 · 13 MB
- Languages: American English
- Released: 2019-01-10
- Data updated: 2026-06-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/tra-cuu-chuyen-mang-giu-so/id1448602745/reviews.md

## What is Tra cuu chuyen mang giu so?

Theo ke hoach cua Bo Thong tin va Truyen thong (TT&TT), ke tu ngay 16/11/2018 cac nha mang lon VinaPhone, MobiFone va Viettel se trien khai dich vu chuyen mang giu so - la dich vu cho phep thue bao chuyen tu nha mang nay qua nha mang khac ma van giu nguyen 10 so dien thoai cu. 
	Tuy nhien, dieu ma nhieu nguoi dung ban khoan nhat, do la khi thuc hien cuoc goi se khong biet so thue bao minh dinh goi thuoc mang nao, co phai noi mang khong hay ngoai mang, vi dieu nay lien quan den cuoc phi cua cuoc goi. Hien tai, cac nha mang deu tung ra rat nhieu goi cuoc co cuoc goi noi mang rat thap, tham chi nhieu cuoc goi noi mang duoi 10 phut con duoc mien phi, do do neu tuong nham mot thue bao la noi mang trong khi thue bao do da chuyen thanh ngoai mang co the gay phat sinh cuoc ngoai y muon. 
	Tham chi ban muon am tham tang the dien thoai cho nguoi khac cung khong biet nen mua the loai nao ca?
	Hien tai cuc Vien thong da cung cap ung dung nhan dien mang thue bao (VNTA) de tra cuu, ho tro nguoi dung kiem tra de biet thue bao goi toi minh thuoc mang nao. Tuy nhien hien ung dung nay con rat so khai, bat nguoi dung phai nhap thu cong so dien thoai rat mat thoi gian va bat tien.
	Vi vay chung toi da cai tien va ra mat ung dung "Tra cuu thue bao chuyen mang giu so", tich hop luon danh ba cua dien thoai, giup ban truoc khi goi cho bat ky ai co the check xem so do cua nha mang nao mot cach tu dong va don gian.
	Neu ban muon biet mot thue bao dang dung nha mang dung dau so hay la mot thue bao da tham gia chuyen mang giu so thi ung dung nay se can cho ban.
	De tra cuu, nguoi dung can tai ve ung dung " Tra cuu thue bao chuyen mang giu so", ban co the kiem tra bat ky thue bao nao trong danh ba hoac nhat ky cuoc goi gan day, ung dung se tra ve tra ve thong tin cho biet so dien thoai noi tren cua nha mang nao, da tham gia chuyen mang giu so hay chua, dau moi la nha mang goc cua thue bao truoc khi chuyen mang.
	Ung dung cung giup ban biet nha mang hien tai cua ban dang su dung la gi voi logo hinh anh rat de nhan biet, giup ban tranh phat sinh chi phi ngoai mang khong mong muon.
	Luu y ung dung chi cung cap thong tin ve nha mang va khong tra duoc thong tin chu thue bao.
	Ung dung yeu cau mot so quyen de doc danh ba va cuoc goi gan day cua ban, dieu nay hoan toan binh thuong de ung dung co the hoat dong duoc.

## Key features

- Check mobile network of any number
- Integrates with phone contacts
- Identifies ported numbers
- Displays original carrier
- Avoids unexpected charges
- Simple and automatic lookup


## Frequently asked questions about Tra cuu chuyen mang giu so

### How does Tra cuu chuyen mang giu so work?

Tra cuu chuyen mang giu so checks the mobile network of any phone number, including those that have switched carriers. It integrates with your contacts and call history to automatically identify the current network and original carrier before you make a call.

### Can Tra cuu chuyen mang giu so identify the owner of a phone number?

No, Tra cuu chuyen mang giu so only provides information about the mobile network and original carrier of a phone number. It does not reveal the subscriber's identity or personal details.

### What devices is Tra cuu chuyen mang giu so available on?

Tra cuu chuyen mang giu so is available for iPhone, iPad, and iPod devices. It is designed for iOS users.

### Is Tra cuu chuyen mang giu so free to use?

Yes, Tra cuu chuyen mang giu so is completely free to download and use. There are no in-app purchases or subscription fees required.

### How often is Tra cuu chuyen mang giu so updated?

The application was last updated on January 10, 2019, with version 2.0. Information on future update frequency is not available.

### What permissions does Tra cuu chuyen mang giu so require?

Tra cuu chuyen mang giu so requires permissions to read your contacts and recent call history. This is necessary for the app to function correctly and provide automatic lookups.

### What is the age rating for Tra cuu chuyen mang giu so?

Tra cuu chuyen mang giu so has an age rating of 4+, making it suitable for a wide range of users.

### What was the original purpose of the mobile number portability service?

The mobile number portability service, implemented on November 16, 2018, allows subscribers to switch between major carriers like VinaPhone, MobiFone, and Viettel while keeping their original 10-digit phone number.

## Version history (last 1 release)

### 2.0 — 2019-01-10

No release notes.

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All apps by Tu Phan: https://appshunter.io/developer/1448602744

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-24.*