What is the full dialing sequence to call the US from a Mexican landline?

Dial 00 (Mexico's exit code), then 1 (US country code), then the 3-digit area code, then the 7-digit local number. For example: 00-1-212-555-1234.

How do I call the US from a Mexican cell phone?

Press and hold 0 to get the + symbol, then dial 1 followed by the full 10-digit US number. For example: +1-312-555-1234. This works for both US landlines and mobile phones.

How much does it cost to call the US from Mexico with Sayfone?

Sayfone offers calls to the United States at $0.08 per minute. You call directly from your browser — no app download, no SIM card, and no hidden connection fees.

Do I need to dial differently for a US mobile vs. a US landline?

No. The United States uses the same 10-digit format (area code + local number) for both landlines and mobile phones. The dialing procedure from Mexico is identical for both.

What time zone is the US in relative to Mexico?

Both countries span multiple time zones. Most of Mexico uses Central Standard Time (UTC−6). The US ranges from Eastern (UTC−5/−4) to Pacific (UTC−8/−7) and beyond. During US daylight saving time (March–November), the offset may shift by 1 hour since most of Mexico no longer observes DST.

Can I call US toll-free numbers (1-800, 1-888) from Mexico?

You can attempt to dial US toll-free numbers from Mexico using 00-1-800-XXX-XXXX, but the call is not free for you — standard international rates apply. Some US toll-free numbers may also not accept international calls.

Do I need a special plan to make international calls from Mexico?

Many Mexican carriers require an international calling add-on. With Sayfone, you can skip carrier restrictions entirely and call US numbers from your browser over Wi-Fi or mobile data at $0.08/min.

What are the most common US area codes I might need?

Some of the most frequently called US area codes from Mexico include 212 (New York City), 213 (Los Angeles), 312 (Chicago), 713 (Houston), 305 (Miami), and 214 (Dallas). The area code is always the first 3 digits of the 10-digit US number.

Quick Answer

How to Call the United States from Mexico

From a Mexican landline, dial 00 + 1 + the 10-digit US number (area code + local number). From a Mexican mobile phone, dial +1 followed by the 10-digit US number. The US country code is 1, and Mexico's international exit code is 00 for landlines or + for mobiles.

Call the US Now

Cost tools

🇲🇽From Mexico

To United States🇺🇸

$0.08

Per minute

Country code

Call quality

Landline rate

$0.08/min

Mobile rate

$0.08/min

Same per-minute Sayfone rate for landline and mobile.

Average call quality

Over 11.5 million Mexican immigrants live in the US, making this one of the highest-demand calling corridors in the world. Sayfone lets you call US numbers directly from your browser at just $0.08/min — no app install required.

Steps at a glance

Dial Mexico's exit code: 00 (landline) or + (mobile)
Dial the US country code: 1
Dial the 3-digit US area code (e.g., 212 for New York)
Dial the 7-digit local phone number
Press call — the full sequence is 00-1-XXX-XXX-XXXX

Sources

1
How to Dial Telephone Numbers To & From Mexico – Mexperience
Dialing format verification for calling from Mexico
2
How to Call the US from Mexico – Calilio
Step-by-step dialing instructions and area code reference

DIALING GUIDE

Step-by-Step: Call the US from Mexico

Follow these steps to dial any US landline or mobile number from Mexico. The format is the same for both cell phones and landlines in the United States.

1
Dial Mexico's International Exit Code
From a Mexican landline, dial 00. From a Mexican mobile phone, press and hold 0 to produce the + symbol instead. This tells the network you are placing an international call.
```
Landline: 00 … | Mobile: + …
```
2
Dial the US Country Code
Enter 1, which is the country code for the United States (and Canada). This routes your call to the US telephone network.
```
Landline: 00-1 … | Mobile: +1 …
```
3
Dial the US Area Code
Enter the 3-digit area code for the region you are calling. For example, 212 for New York City, 213 for Los Angeles, or 312 for Chicago. The area code is always 3 digits in the US.
```
Landline: 00-1-212 … | Mobile: +1-212 …
```
4
Dial the Local Phone Number
Enter the 7-digit local phone number. Together with the area code, US numbers are always 10 digits total. The format is the same whether you are calling a US landline or a US mobile phone.
```
Landline: 00-1-212-555-1234 | Mobile: +1-212-555-1234
```
5
Press Call
Tap the call button. If using Sayfone in your browser, enter the full number including +1 and the 10-digit US number. Calls connect at $0.08/min with no hidden fees.
```
Sayfone: +1-212-555-1234
```

Dialing format reference

Use these patterns when entering a full international number to +1.

Mobile

+1 (NPA) NXX-XXXX

Landline

+1 (NPA) NXX-XXXX

+1 212 555-0100 (New York City)
+1 213 555-0100 (Los Angeles)
+1 312 555-0100 (Chicago)
+1 305 555-0100 (Miami)
+1 713 555-0100 (Houston)

Major city area codes

New York City212

Los Angeles213

Chicago312

Houston713

Miami305

Dallas214

San Antonio210

Phoenix602

Sources

1
How to Call the US from Mexico – Calilio
Primary source for Mexico-to-US dialing steps
2
FCC International Calling Tip Sheet
US government reference for international calling procedures
3
How to Dial Telephone Numbers To & From Mexico – Mexperience
Comprehensive Mexico dialing rules including exit codes

IMPORTANT RULES

Dialing Rules for Calling the US from Mexico

Keep these rules in mind to ensure your calls to the United States connect every time.

Use 00 for Landlines, + for Mobiles

When calling from a Mexican landline, always begin with 00 as the international exit code. From a Mexican mobile phone, press and hold 0 to get the + symbol, which replaces the exit code automatically.

US Numbers Are Always 10 Digits

Every US phone number consists of a 3-digit area code followed by a 7-digit local number, totaling 10 digits. This applies to both landlines and mobile phones. Do not add or remove digits.

Same Format for Landlines and Mobiles

Unlike some countries, the US uses the same dialing format for both landlines and mobile phones. You do not need to add any special prefix when calling a US cell phone.

Check the Time Zone Before Calling

The US spans six time zones (Eastern, Central, Mountain, Pacific, Alaska, Hawaii). Most of Mexico is in the Central time zone (UTC−6), but Mexico abolished daylight saving time in 2022 (except Baja California and border cities), which can create a 1–2 hour offset during US daylight saving months.

Save Contacts in International Format

Save US numbers in your phone as +1 followed by the 10-digit number (e.g., +1 212 555-0100). This ensures calls, texts, and messaging apps work correctly whether you are in Mexico or traveling elsewhere.

TIMING TIPS

Best Times to Call the US from Mexico

Mexico and the US share similar time zones, making cross-border calls convenient. However, differences in daylight saving time can shift the offset by an hour during parts of the year.

Time & windows

Best for Personal Calls

6:00 PM – 9:00 PM (Mexico City time)

Evening in Mexico, evening in most US cities — families are typically home.

Best for Business Calls

10:00 AM – 5:00 PM (Mexico City time)

Overlaps with US business hours (9 AM – 4 PM ET, 8 AM – 3 PM CT).

Weekend Catch-up

10:00 AM – 2:00 PM (Mexico City time)

Late morning for a relaxed weekend call — ideal for cross-border families.

🇲🇽Mexico City → New York (ET)

Same or 1–2 hours behindDuring US DST (Mar–Nov), New York is typically 1–2 hours ahead of Mexico City.

🇲🇽Mexico City → Los Angeles (PT)

1 hour ahead or sameMexico City is usually 1 hour ahead of LA during US DST; may be the same otherwise.

🇲🇽Mexico City → Chicago (CT)

Same or 1 hour behindBoth share the Central time zone, but DST differences can create a 1-hour offset.

🇲🇽Tijuana → Los Angeles

Same timeBaja California follows US Pacific DST, so Tijuana and LA stay synchronized.

Calling tips

Coordinate with family in the US before sending a remittance — a quick call ensures they're ready to receive funds.
Use the + format when saving US contacts so your phone routes correctly from any location.
Avoid calling the US East Coast too late in the evening from central Mexico — they may be 1–2 hours ahead.
With Sayfone, you can call any US number directly from your browser at $0.08/min — no SIM swap or app needed.

Business etiquette

US business hours are typically 9:00 AM to 5:00 PM local time. Schedule calls within this window.
Americans generally prefer brief, agenda-driven calls. State your purpose early in the conversation.
For USMCA supply-chain coordination, consider scheduling recurring calls at a fixed time to account for any DST offset.
If calling a US toll-free number (1-800, 1-888, etc.) from Mexico, standard international rates apply — the call is not free from outside the US.

Sources

1
Time in Mexico – Wikipedia
Mexico time zone structure and DST abolition
2
Time Difference: Mexico to United States – Travelmath
Suggested calling windows

TROUBLESHOOTING

Common Issues When Calling the US from Mexico

If your call to the United States isn't connecting, check these common problems before trying again.

Call Won't Connect at All

Verify you are dialing 00-1 (landline) or +1 (mobile) before the 10-digit US number. Omitting the exit code or country code is the most common reason calls fail.

Wrong Number or Fast Busy Signal

Double-check that you have the correct 3-digit US area code and 7-digit local number. US numbers are always exactly 10 digits after the country code. An extra or missing digit will cause a fast busy signal.

Carrier Blocks International Calls

Some Mexican phone plans do not include international calling by default. Contact your carrier (Telcel, AT&T Mexico, Movistar) to confirm international dialing is enabled, or use Sayfone via your browser to bypass carrier restrictions entirely.

US Toll-Free Numbers Don't Answer

US toll-free numbers (1-800, 1-888, 1-877, etc.) may not accept calls from outside the US, or they may route differently. You will also be charged international rates even though the number is toll-free within the US.

Audio Quality Issues

If calls connect but the audio is poor, check your network connection. For Sayfone browser calls, a stable Wi-Fi or 4G/LTE connection is recommended. Close bandwidth-heavy applications during the call.

Sources

1
How to Call the US from Mexico – Calilio
Troubleshooting tips for Mexico-to-US calls
2
FCC International Calling Tip Sheet
General international calling troubleshooting

Savings

See what you could save

Adjust the tools below to compare Sayfone with typical retail pricing for calls to United States. Start with one call, then layer on monthly volume to see the bigger picture.

How to use these tools

Sayfone uses your live rate for calls to United States — the same basis as the rest of this page.
First, estimate savings on a single call length. Then, model a full month of minutes versus typical retail benchmarks.
Retail competitor rows are illustrative — not a quote from any carrier.