IMEI Number (Mobile Device) Regex for Python

What this pattern does

This page provides a lightweight, single-purpose regular expression for matching imei number (mobile device), ported and verified for Python. Identity and credential patterns need both correctness and safety, since they're frequent targets for adversarial input. The snippet below is ready to drop into your Python project — whether you're validating in a Django view, a FastAPI endpoint, or a standalone data processing script.

Python Implementation

# IMEI Number (Mobile Device)
# ReDoS-safe | RegexVault — Identity & PII > Digital Identity

import re

imei_number_mobile_device_pattern = re.compile(r'^[0-9]{15}$')

def validate_imei_number_mobile_device(value: str) -> bool:
    return bool(imei_number_mobile_device_pattern.fullmatch(value))

# Example
print(validate_imei_number_mobile_device("356938035643809"))  # True

Test Cases

When to use this pattern

This pattern is drawn from the Identity & PII > Digital Identity category and carries a ReDoS-safe certification. That matters for Python developers because particularly important in Python web servers where CPU-bound regex operations can stall concurrent request handling. RegexVault audits patterns against known backtracking attack vectors, ensuring you have the necessary context before using this regex in a high-stakes production environment.

Common Pitfalls

Technical Notes

IMEI structure: 8-digit TAC (Type Allocation Code, identifies manufacturer/model) + 6-digit serial number + 1 Luhn check digit. IMEI2 is used for dual-SIM devices. IMEISV is 16 digits (includes software version). Always validate Luhn checksum.