Latin America

SIP Trunk Mexico — +52 Termination & DID Numbers

Mexico moved to a closed 10-digit numbering plan in August 2019, removing the old 01, 044 and 045 prefixes, so every number is now dialled the same way from anywhere. That makes routing simple, but mobile termination still costs noticeably more than fixed lines.

Get Mexico rates Talk to NOC

Overview

Routing calls to Mexico

Most Mexico traffic we see ends in Mexico City, Guadalajara and Monterrey, Puebla, Tijuana and Querétaro. Each +52 prefix is mapped to at least two carriers, and we watch ASR, ACD and PDD per prefix so a degrading route is replaced before your agents notice.

Numbering in Mexico is managed by IFT. We terminate to geographic, mobile and toll-free ranges and price each one separately on the rate sheet. There is no trunk prefix to strip: send 52 followed by the national number as written.

Documentation for Mexico DIDs depends on the range. Some go live with standard account details, and others need a local address. Outbound calling has no extra requirements.

What you get

What you get in Mexico

One account and one balance, with the same SBCs for termination and inbound numbers.

CLI route tier
Caller ID delivered end to end on +52 calls. Use it for sales, support and any traffic where answer rates matter.
Non-CLI route tier
A lower-cost tier where caller ID delivery is not guaranteed. Suitable for internal or transactional traffic that does not depend on the CLI.
Number types
Geographic, Mobile, Toll-free. DID availability varies by range and city.
Codecs
G.711a/u and G.729 on every route, G.722 and Opus where the far end supports them. T.38 for fax.
Channels on demand
Concurrent call limits are set per account and raised as your traffic grows. No fixed channel bundles.
Multi-carrier failover
Every +52 prefix is mapped to more than one carrier. Failed attempts move to the next one automatically.

Number formats

How to dial Mexico from your PBX

Send E.164 digits. The sample number below shows the format only.

Mexico number formats
Format	Example	Notes
International (E.164)	+52 55 1234 5678	How the number is written and stored.
Sent from your PBX	525512345678	E.164 digits with no plus, prefixed by your tech prefix if your account uses one.
With 00 exit code	00 52 55 1234 5678	Accepted on the trunk. We normalise it to E.164.
National format	55 1234 5678	Dialled inside Mexico. There is no trunk prefix.

Compliance

Mexico rules to know

What applies before your first call or your first DID goes live.

Compliance box

Regulator: IFT
Caller ID: A valid CLI that you are entitled to use is required on CLI routes. Spoofed or unallocated numbers are blocked.
DID KYC: Sometimes required

Rules change — our team confirms current requirements before activation.

Use cases

Who uses Mexico routes

01
Nearshore contact centres in Monterrey and Guadalajara serving US and Mexican customers
02
Spanish-language collections and customer care with local Mexico City CLIs
03
800 toll-free numbers for nationwide retail and banking support

Setup

Start calling Mexico in 3 steps

01
Top up $200
Open a prepaid account and add balance by USDT (TRC20), BTC or card.
02
Add your trunk
Whitelist your PBX IP or create digest credentials, then point your outbound route at our SBC.
03
Dial +52
Send 52 + national number in E.164 and check the CDR for your first test call.