French Phone Number

Detects French national telephone numbers per ARCEP's numbering plan: 10-digit numbers in the "0X XX XX XX XX" form covering geographic (01-05), mobile/personal (06-07), and polyvalent (09) leading digits, plus the +33 international form (10-digit domestic number with the leading 0 dropped, per ARCEP convention). The 09 polyvalent range is in scope because it is predominantly personal PII in practice: 09 is the standard residential VoIP home-line range, auto-issued with consumer internet boxes to millions of French households; only the small 0937-0939 sub-range carries ARCEP's newer "technical platform" category (app-to-driver ephemeral numbers and similar). Numbers beginning 08 (value-added services) remain intentionally out of scope — organizational/service numbers rather than personal PII, mirroring how uk-phone-number scopes out non-geographic service ranges.

Type: regex
Engine: universal
Confidence: medium
Confidence justification: Medium confidence: the leading-digit constraint (01-07 and 09 domestic, restricting to geographic, mobile/personal, and polyvalent ranges) and the fixed 10-digit length narrow the format, but French numbers carry no checksum and a 10-digit sequence with those leading digits is still a high digit-collision format. Per the phone-family convention (every tier requires positive corroborative evidence; a +CC prefix alone is insufficient gating; there is no 65 rung), both the domestic and +33 international sub-regexes are evidence-gated at every tier: 75 requires generic phone-context evidence and 85 requires country-specific phone keywords with template/noise exclusion. The literal +33 prefix improves precision when present but is not by itself sufficient gating.
Jurisdictions: fr
Regulations: GDPR
Frameworks: ISO 27001, ISO 27701, SOC 2
Data categories: pii, contact-information
Scope: narrow
Risk rating: 5
Platform compatibility: Purview: Compatible, GCP DLP: Unsupported, Macie: Unsupported, Zscaler: Compatible, Palo Alto: Unsupported, Netskope: Unsupported

Pattern

(?<!\d)(?:\+33[\s.-]?[1-79][\s.-]?\d[\s.-]?\d[\s.-]?\d[\s.-]?\d[\s.-]?\d[\s.-]?\d[\s.-]?\d[\s.-]?\d|0[1-79][\s.-]?\d[\s.-]?\d[\s.-]?\d[\s.-]?\d[\s.-]?\d[\s.-]?\d[\s.-]?\d[\s.-]?\d)(?!\d)

Corroborative evidence keywords

phone, mobile, call, text, contact number, French phone number, numéro de téléphone, call me at, cell, telephone, tel, dial, text me, text message, [object Object], WhatsApp, voicemail, phone number, mobile number, landline

Proximity: 300 characters

Should match

Portable: 06 39 98 45 67 — ARCEP-reserved fictional root for audiovisual works (Décision n° 2021-0532, §2.5.12), mobile 06 range, space-separated
Fixe : 01 99 00 12 34 — ARCEP-reserved fictional root, geographic 01 (Paris-region-style) range
Bureau: 02.61.91.78.90 — ARCEP-reserved fictional root, geographic 02 range, dot-separated
International: +33 6 39 98 45 67 — International +33 form of the mobile fictional root, leading 0 dropped
Domicile: 09 70 12 34 56 — Polyvalent 09 residential VoIP home-line range, illustrative synthetic value (ARCEP's audiovisual-works fictional roots include no 09 root)

Should not match

08 92 68 00 00 — Leading digit 8 is a value-added-service number, out of scope for this personal-communications pattern
00 12 34 56 78 — Second digit 0 — "00" is the international call prefix, not a valid subscriber-number category (valid categories are 01-07 and 09)
01 99 00 12 — Only 8 digits total, two short of the required 10
901990012345678 — Valid-shaped digit run embedded inside a longer reference number, rejected by digit boundaries

Known false positives

A 10-digit sequence with a 01-07 or 09 leading digit can still coincidentally match invoice numbers, order numbers, or other structured identifiers of the same length and leading-digit distribution. Mitigation: Every tier — for both the domestic and +33 international sub-regexes — requires positive phone-context or country-specific evidence within 300 characters; no zero-evidence tier exists, so a bare digit run without corroborating context never fires at any confidence level.
Since January 2023, geographic numbers (01-05) are no longer tied to a physical department, so the leading digit alone does not confirm a caller's actual location — this pattern detects the number format only, not geographic attribution. Mitigation: Rely on surrounding document context (postal addresses, entity names) rather than the leading digit for any geographic-attribution use case.
Within the 09 range, the 0937-0939 sub-range carries ARCEP's "technical platform" category (organizational platform-to-customer communication numbers, e.g. app-to-driver ephemeral numbers) rather than personal home lines — the regex cannot distinguish this sub-range from the residential VoIP majority of the 09 block. Mitigation: Accepted trade-off: the 09 block outside 0937-0939 is predominantly personal residential lines, and a platform number matched in error is a low-harm false positive; evidence gating still applies at every tier.