Data FormattingSTD_2005v1

E.164 International Phone Number Format

Ensures phone numbers follow the international standard format including country code.

Owner: Unassigned

Updated: 10/31/2025

Business Rule

Standardized phone numbers enable automated dialing, SMS campaigns, and global communication.

Technical Implementation

Store numbers in E.164 format: +[country code][subscriber number]. Maximum 15 digits including country code.

Examples

Good practices vs common violations

Good Examples

+14155552671

+31208080808

Poor Examples (Violations)

(415) 555-2671

020-808-0808

Additional Information

Target Industries

All

Status

active

Local Network

DQ Improvements

Data quality dimensions improved by this standard

Completeness (Data values of an attribute)

high

The degree to which all required data values of an attribute are present.

Type: prevents

Interpretability

high

The degree to which data are in an appropriate language and units of measure.

Type: prevents

Validity

high

The degree to which data values comply with rules.

Type: prevents

Quick Stats

Related KPIs0

DQ Improvements3

Versionv1

API Access

GET /api/standards/e-164-international-phone-number-format