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US area code · Pennsylvania

610 area code

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.

Number holders in area code 610

Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 800 prefixes are in use in 610, shared by 44 companies. The largest holders:

CompanyPrefixesShare
Verizon Pennsylvania, Inc.32541%
New Cingular Wireless PCS, LLC567%
Cellco Partnership Dba Verizon Wireless435%
Mcimetro Access Transmission Services LLC395%
Teleport Communications America, LLC385%
Level 3 Communications, LLC365%

Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.

Complaints about 610 numbers

Reports to the FTC, last 30 days
1,055
Recorded messages or robocalls
54%
Rank among area codes
#38 of 670
Most reported subjects
Other (614)
Dropped call or no message (90)
Medical & prescriptions (83)

Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.

Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).

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

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