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Mexico: SMS delivery facts

SMS to Mexico uses calling code +52. Alphanumeric sender IDs are allowed under a regime with no centralized government registry, per operator practice. Traffic follows the GSM-7 with extension caveats character set, so messages segment at 160 characters single and 153 concatenated.

+52 XXX XXX XXXcountry code (Mexico)national subscriber numberE.164 caps the whole string at 15 digits - the example digits are placeholders(national number length varies by market); only the +52 prefix is Mexico-specific
Country calling code+52 (ITU-T E.164 assigned country codes, retrieved 2026-07-27)
E.164 format+52 followed by the national subscriber number, no leading trunk zero, 15 digits maximum overall (ITU-T E.164)
Alphanumeric sender IDallowed (per Mexican mobile operator practice, retrieved 2026-07-26)
Registration regimeno registration scheme
Dominant language(s)Spanish
Native-text charsetGSM-7 (with caveats) — 160 characters per single SMS, 153 per concatenated segment (GSM 03.38 default alphabet vs script analysis, retrieved 2026-07-27)
Published smsroute rateUSD 0.015 per message, dated snapshot (source, retrieved 2026-07-27). Current rate and send path: rate card for Mexico

Sender-ID rules

Alphanumeric sender IDs are commonly used without a centralized government sender-ID registry. (per Mexican mobile operator practice, verified 2026-07-26)

Alphanumeric sender IDs are commonly used without a centralized government sender-ID registry; there is no sender-ID registration scheme. The GSM-7 with extension caveats charset class aligns with GSM default alphabet handling, giving 160-character single-segment and 153-character concatenated limits rather than UCS-2 lengths.

Character set and message length

Native Spanish text is classed as GSM-7 (with caveats) here: 160 characters fit a single SMS and 153 per segment once a message is concatenated.

GSM-7 (160 chars/segment, 153 concatenated)1 segment = 160 chars2 segments = 306 chars3 segments = 459 charsUCS-2 (70 chars/segment, 67 concatenated)1 segment = 70 chars2 segments = 134 chars3 segments = 201 chars
Cost per message at the published rate (0.015 USD, 2026-07-27)1 segment = $0.0152 segments = $0.033 segments = $0.045Multipart messages are commonly billed per segment - the segment ruler above shows where each boundary falls.

To count segments for a concrete message, use the UDH segment surgeon; to compare all 40 countries side by side, the country requirements explorer reads the same open dataset (CC-BY 4.0).

Every figure above is maintained by SMSRoute guides with a named source and retrieval date - the machine-readable copy for Mexico lives in api/v2/countries.json (CC-BY), field-level provenance included.

Frequently asked

Are alphanumeric sender IDs allowed for SMS to Mexico?
Yes. Alphanumeric sender IDs are allowed; the there is no registration scheme, and they are commonly used without a centralized government sender-ID registry per Mexican mobile operator practice.
What character set and segment lengths apply to Mexico SMS?
Mexico uses the GSM-7 with extension caveats charset class, so segments are 160 characters for a single message and 153 for concatenated messages.
What is the calling code and published SMS rate for Mexico?
The calling code is +52. The published rate is 0.015 USD (retrieved 2026-07-27).
How do I test SMS delivery to Mexico without a local SIM?
Use a delivery-testing service that sends to real Mexican mobile numbers; SMSRoute accounts include free test credits so you can confirm handset delivery without owning a local SIM.
Can I use my company name as the sender for SMS to Mexico?
Yes. Alphanumeric sender IDs are allowed and commonly used in Mexico with no centralized government sender-ID registry, so a company name can typically appear as the sender.

Related

Facts on this page are dated snapshots with named sources; rates change — the linked rate card is authoritative. Corrections: ops@smsroute.cc. Last verified 2026-07-27.