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US area code · Pennsylvania

Area code 610

Where the 610 area code is, its overlay and how to dial a +1 610 number from anywhere.

CoversAllentown, PennsylvaniaTime zoneEastern (ET)TypeOverlay
Quick answer

The 610 area code is in Allentown, Pennsylvania, United States (Eastern (ET)). To call from abroad: +1 610 555-0123. It is an overlay, so all 10 digits are dialled.

StatePennsylvania
Main areaAllentown
Time zoneEastern (ET)
TypeOverlay
10-digit dialingRequired
In service since05-Jan-1993

The 610 area code is a geographic North American Numbering Plan (NANP) code covering Allentown, Pennsylvania. It has been in service since 05-Jan-1993 and sits in the Eastern (ET) time zone.

Overlay 610 shares its region

Several area codes cover the same geographic area, so two neighbours can have different codes. Because of the overlay, you must dial all 10 digits (area code + number) even for local calls.

610215484835

How to dial a 610 number

From abroad+1 610 555-0123
Within the US / Canada1 610 555-0123
Locally (same area)610 555-0123

Cities in the 610 area code

A 610 number is usually in one of these places in Pennsylvania — 7 counties.

Allentown LehighBethlehem Lehigh;NorthamptonDrexel Hill DelawareEaston NorthamptonNorristown Chester;MontgomeryPottstown Chester;MontgomeryRadnorReading BerksSpringfield DelawareWest Chester Chester

Other Pennsylvania area codes

215223267272412445484570582717724814835878

Frequently asked questions

Where is the 610 area code?

The 610 area code is in Allentown, Pennsylvania, United States (Eastern (ET)).

Is 610 an overlay area code?

Yes. 610 overlays the same region as 215, 484, 835, so callers dial all 10 digits.

Do I have to dial 10 digits for 610?

Yes — dial the area code plus the seven-digit number.

How do I call a 610 number from another country?

Dial your exit code (or +), then 1, then 610, then the number: +1 610 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 610 number does not pinpoint a street or ZIP code.

Missed a call from +1 610?

In the 30 days to September 24, 2026, 1,055 unwanted calls showing a 610 number were reported to the US Federal Trade Commission, 54% of them recorded messages or robocalls. That puts 610 at #38 of 670 area codes reported.

Other614
Dropped call or no message90
Medical & prescriptions83
Reducing your debt (credit cards, mortgage, student loans)78
Before you call back
  • If you do not know anyone in Pennsylvania, do not call back: a genuine caller will leave a message or send a text.
  • Scammers fake the number shown on caller ID, so a 610 number can hide a caller anywhere in the world.
  • Never give a code received by text or a bank detail to an unknown caller. In the US, calls can be reported at reportfraud.ftc.gov.

Who issues +1 610 numbers

Phone companies hold blocks of numbers in each area code. The main holders in 610:

Verizon Pennsylvania, Inc. 325New Cingular Wireless PCS, LLC 56Cellco Partnership Dba Verizon Wireless 43Mcimetro Access Transmission Services LLC 39Teleport Communications America, LLC 38Level 3 Communications, LLC 36

About 12.4% of the 800 prefixes in use belong to mobile carriers: a 610 number is often a cell phone, and it may have moved to another carrier since.

Sources: FTC Do Not Call reported calls (numbers as reported by consumers, not verified), NANPA central office code assignments.

All US area codes United States +1 Map of area code 610 — cities & rate centres