Mexico country code +52 — call Mexico & get a number.
One reform rewrote how the whole country answers the phone. Here's +52 the way it actually dials today — clean 10-digit numbers, the metros behind 55, 33 and 81, live time across Mexico's zones — and how your business plants a real Mexican number with MCM.
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Mexico at a glance
The numbers and facts you need before you dial.
What is the country code for Mexico?
Mexico answers to +52. The bigger story is what happened *behind* that code. The August 2019 dialing reform swept away a confusing tangle — gone are 01 for landlines, 044 for nearby mobiles and 045 for long-distance mobiles — and replaced the lot with a single 10-digit national number carrying no trunk prefix at all.
The headline change for anyone calling in: a Mexican mobile no longer wants that extra "1" tucked after the country code. Where you once punched +52 1 55…, you now simply dial +52 55…. That legacy "1" finished disappearing by August 2020, so any guide still showing it is out of date.
Code +52 was assigned to Mexico by the ITU under the E.164 plan. The “+” means “dial your local international exit code”; on a mobile, press and hold 0 to type it.
All four mean the same thing — they connect your call to Mexico.
How to call Mexico from anywhere
The recipe is short now: exit code, then 52, then the 10-digit number — nothing in between. Resist the muscle memory to slip a "1" in front of the area code; the reform retired it, and adding it can break the call.
Full example: +52 55 XXX XXXX — drop the local leading 0 when calling from abroad.
Mexico phone number format explained
Read any Mexican number today and you'll count 10 digits, always — an area code (two digits for the giants, three for everyone else) followed by the subscriber line. One plan, no prefix, identical for a phone on a desk or in a pocket.
Landline
10 digits — area code + subscriber. Example: **+52 55 1234 5678** (Mexico City). The three biggest metros — CDMX 55, Guadalajara 33, Monterrey 81 — get short 2-digit codes; everywhere else runs 3-digit codes.
Mobile
Also 10 digits, dialed identically to a landline. The retired 1 / 045 / 044 prefixes have no place here anymore. Example: **+52 55 1234 5678**. And because Mexico lets numbers port between carriers, the digits won't tell you which network you're reaching.
Mexico area codes — major cities
Drop the local leading 0 when calling from abroad.
| City | Region | Area code |
|---|---|---|
| Mexico City (CDMX) | Ciudad de México | 55 |
| Guadalajara | Jalisco | 33 |
| Monterrey | Nuevo León | 81 |
| Puebla | Puebla | 222 |
| Tijuana | Baja California | 664 |
| Cancún | Quintana Roo | 998 |
| Mérida | Yucatán | 999 |
| León | Guanajuato | 477 |
| Querétaro | Querétaro | 442 |
| Toluca | Estado de México | 722 |
Mexico mobile network prefixes
The prefix after +52 tells you which network issued the SIM — though number portability means it no longer guarantees the operator.
**Telcel** (América Móvil)
the largest network by far, nationwide coverage.
AT&T Mexico
second major facilities-based operator.
**Movistar** (Telefónica)
third operator; now uses AT&T's network under a sharing agreement.
Mexico time zone
Set your watch to Mexico City and you're on Central Standard Time (CST, UTC-6) — the clock most of the country keeps. But Mexico is wide, stretching across UTC-5 to UTC-7, so a call to Cancún or Tijuana lands at a different hour than one to the capital. A 2022 law scrapped daylight saving for most of the country; only a handful of northern border towns still spring forward with the US.
With CDMX just an hour behind US Eastern, the cross-border workday overlaps almost completely — a 9-to-5 in either country mostly catches the other live. Calling from the UK or Europe? Your afternoon and early evening land on a Mexican morning to midday.
Common mistakes when calling Mexico
Almost every failed international call is a formatting issue, not a network issue.
Stop adding the "1" after +52: this is the single biggest Mexico mistake. The +52 1 mobile format is dead
dial +52 + 10 digits and nothing more.
Reaching for old 01 / 044 / 045 prefixes: the 2019 reform deleted all three
Reaching for old 01 / 044 / 045 prefixes: the 2019 reform deleted all three. Saved contacts that still carry them will fail.
Bracing for short numbers: there are no 7- or 8-digit Mexican numbers anymore
every one is exactly 10.
Guessing the carrier from the digits: portability moved that game years ago; the number tells you nothing about the network
Guessing the carrier from the digits: portability moved that game years ago; the number tells you nothing about the network.
Firing 011 from outside North America: that's a NANP exit code
Firing 011 from outside North America: that's a NANP exit code. From Europe dial 00, from elsewhere your own.
Tips to reduce the cost of calling Mexico
Route calls over VoIP or a virtual number and the international per-minute meter stops running.
Always dial in clean "+" / E.164 form
it keeps routing tidy now that the legacy prefixes are gone.
Lean on the tight US/Mexico time overlap; first-try connections beat repeat dials.
Hold a local +52 DID so Mexican callers reach you at domestic rates instead of paying to ring abroad.
Why businesses get a Mexico virtual number
Drop a local +52 number into Latin America's second-largest economy and you look like you've always been there.
Higher answer rates
Higher answer rates — a familiar +52 on the screen gets picked up far more than a foreign string.
Lower trust friction
Lower trust friction — a 55, 33 or 81 number reads as "one of us" to a customer in CDMX, Guadalajara or Monterrey.
Cheaper inbound
Cheaper inbound — Mexican callers dial a domestic number, not an overseas one.
Centralized routing
Centralized routing — Mexican calls land wherever your team actually sits.
Faster expansion
Faster expansion — go live across Mexico without signing an office lease first.
Real PSTN presence
Real PSTN presence — a genuine Mexican line, not a forwarded approximation.
Mexico virtual numbers with My Country Mobile
Carrier-grade Mexican numbers engineered for the heavy US-Mexico call traffic that crosses the border every day.
Local DIDs in major area codes — provisioned in minutes
Call forwarding to any mobile, landline, SIP endpoint, or softphone worldwide
HD voice with G.711, G.729, Opus & AMR-WB — auto-negotiated per call
Sub-150ms latency on major voice corridors via distributed PoPs
99.99% uptime SLA backed by geo-redundant infrastructure & sub-2s failover
WebRTC support for browser-based calling without softphone installs
REST APIs for provisioning, routing & call detail records (CDRs)
Built-in fraud protection with AI anomaly detection & STIR/SHAKEN
24/7 network monitoring and dedicated support
How to get your Mexico virtual number
Most businesses are live within hours, not days.
Pick your metro — CDMX 55, Guadalajara 33, Monterrey 81 — or a nationwide Mexican number.
Verify your account and hand over any documents the line requires.
Wire up routing, forwarding and your IVR flow.
Switch it on and start fielding Mexican calls.
Other country dialing guides
More country codes worth bookmarking.
Get a Mexico virtual number with MCM
Spin up a Mexican virtual number in minutes and start your free trial — no office in CDMX required.
Mexico +52 — FAQ
My old contact starts with +52 1 — why won't it connect?expand_more
That "1" is a relic of the pre-2020 mobile format. Delete it and the rest of the number should ring straight through as +52 + 10 digits.
A friend gave me a Mexican number as "044 55…" — how do I dial it?expand_more
Drop the 044 entirely. The 044/045/01 prefixes were retired in 2019; just take the 55 and the seven digits after it and dial +52 55…
Is calling a Guadalajara number different from a Mexico City one?expand_more
Only the area code changes — Guadalajara is 33, Mexico City is 55. The dialing rule (+52 + 10 digits) is identical for both.
Why doesn't Mexico need a trunk "0" anymore like other countries?expand_more
The 2019 reform built a flat 10-digit plan with no trunk prefix, so you dial the same number inside Mexico and from abroad — no 0 to add or drop.
If I'm in the US, do I dial 011 or 1 to reach Mexico?expand_more
Use 011 (the US/NANP international exit code), then 52, then the 10 digits. Mexico is +52, not part of the +1 plan, so the domestic "1" won't reach it.
Can I get a number with Monterrey's 81 code if my company isn't based there?expand_more
Yes — a virtual +52 81 number gives you a Monterrey presence regardless of where your team actually sits.
Does the same time apply whether I call CDMX or Cancún?expand_more
Not necessarily. Most of Mexico is on CST (UTC-6), but the country spans UTC-5 to UTC-7, so border and Caribbean regions can be an hour off the capital.
Will I reach the same person if their number ported to a new carrier?expand_more
Yes. Thanks to mobile number portability the 10-digit number stays with the person even when they switch between Telcel, AT&T or Movistar.