Link Your
Supply Chain
Dial straight from a browser tab and pay only for the minutes you use. Nothing installs, and a number is needed solely when you want to receive inbound calls.
What you get
- Outbound: Place calls out with no dedicated number to buy.
- Inbound: Add a US/Canada digital number at $2.14 to $5/month.
- No apps: Runs in Chrome, Safari, Edge, and Firefox.
How to Reach a Maquiladora from the US
The standard sequence for connecting to industrial parks across Mexico, billed by the minute.
US Exit Code
Enter 011 to leave the US network.
Mexico Code
Add 52 for Mexico.
Area Code
Either 2 or 3 digits, for instance 664 covers Tijuana.
Phone Number
The rest of the digits that round out the 10-digit national number.
Updated Telefonia Dialing Rules
Under the current regulations, Mexico has streamlined how numbers are dialed. The old 044 and 045 mobile prefixes are gone. Just use 011 + 52 + the 10-digit number for landlines and mobiles alike.
Major Maquiladora Manufacturing Hubs
Dialing codes for the leading manufacturing regions across Mexico.
| City (Hub) | State | Code |
|---|---|---|
| Tijuana | Baja California | 664 |
| Ciudad Juárez | Chihuahua | 656 |
| Monterrey | Nuevo León | 81 |
| Reynosa | Tamaulipas | 899 |
| Querétaro | Querétaro | 442 |
| City (Hub) | State | Code |
|---|---|---|
| Guadalajara | Jalisco | 33 |
| Mexicali | Baja California | 686 |
| Saltillo | Coahuila | 844 |
| San Luis Potosí | San Luis Potosí | 444 |
| Puebla | Puebla | 222 |
Why Maquiladoras Move to
VoIP Telephony
Running a cross-border operation means US engineers and Mexican plant managers talk all day long. Legacy carriers bill steep international rates and lag on the line. Intercalling routes the IMMEX sector at low, transparent per minute pricing.
- Dial straight into industrial parks like Finsa and Vesta
- Clear voice quality for coordinating the supply chain
- Browser based calling with no hardware to buy
- Cut costs by 80% against traditional US carriers
Low Rates
Trim the overhead on every international call to Mexico.
Built for the Floor
Tuned for high-volume manufacturing settings.
Protected Calls
Encrypted VoIP that guards sensitive IP and logistics data.
Quick to Launch
Get phone lines to your Mexico team within minutes.
Frequently Asked Questions
Do I still dial 044 or 045 to reach mobiles in Mexico?
No. Mexico dropped the 044 and 045 prefixes back in August 2019. Every number, landline or mobile, is now dialed as 10 digits straight after the country code (+52).
Can my US business get a local Mexican number?
Yes. Intercalling lets you set up virtual numbers in cities such as Tijuana or Mexico City, so your Mexican suppliers reach you on a local line while you pick up in the US.
Will it work in factories with weak cell reception?
Yes. Intercalling runs over VoIP (Voice over IP), so calls travel through your internet connection. With Wi-Fi or Ethernet on site, call quality stays solid no matter the cellular signal.
What exactly is the Maquiladora industry?
Maquiladoras are Mexican factories that operate largely duty-free and tariff-free. Foreign companies, mostly US owned, run them to assemble goods for export. Dependable phone service keeps their just-in-time logistics on track.
Ready to cut your calling costs?
Open a direct line to your Maquiladora today with pay as you go pricing, no contracts, and no hardware fees.

Call from any browser
No app and no SIM. Place the call from your computer or phone in seconds.

Low rates to 190+ destinations
Clear per minute pricing, shown before you dial. Pay as you go, no monthly fee.

One balance, every device
Start on your laptop, continue on your phone, all at the same low rate.