Spain voice guidelines
Voice calling guidelines for Spain (ES), covering reachability, caller ID formats, DTMF support, and emergency services.
Locale overview
| Field | Value |
|---|---|
| Country | Spain |
| ISO code | ES |
| Region | Europe |
| Dialing code | +34 |
Reachability
Spain supports domestic, international, and toll-free calling, with some restrictions on outbound traffic.
| Call type | Inbound | Outbound | Notes |
|---|---|---|---|
| Domestic | Supported | Supported | A local phone number must be used for domestic outbound calls |
| International | Supported | Supported | — |
| Toll-free | Supported | Supported | — |
Outbound restrictions
- Outbound calls from numbers with the +34902 prefix are not permitted.
- Spanish mobile numbers cannot be used for unsolicited marketing or customer service calls.
Caller ID
| Call type | Inbound format | Outbound format |
|---|---|---|
| Domestic | +E.164 | +E.164 |
| International | E.164 (not guaranteed) | +E.164 |
| Toll-free | +E.164 | +E.164 |
DTMF support
DTMF signaling uses RFC 2833 format and is supported for both inbound and outbound calls.
Emergency services
Calling emergency services in Spain is not supported through standard carrier routing. Do not rely on this service for emergency calling use cases.
Compliance note
These guidelines summarize carrier requirements at the time of publication and do not constitute legal counsel. Verify that your implementation complies with all applicable telecommunications regulations in Spain.