The 835 area code is an overlay assigned to southeastern Pennsylvania – the same region served by the 610 and 484 codes across the Philadelphia suburbs, Lehigh Valley, and Berks County. Designated as a future relief code for one of the state’s busiest numbering regions, 835 covers the same territory as 610 and 484. If an 835 number has appeared on your caller ID, this guide explains where it comes from, how to dial it, and how to stay safe from spoofed calls.
Quick Summary: Area Code 835 at a Glance
| Detail | Information |
|---|---|
| Area Code | 835 |
| State | Pennsylvania (PA) |
| Major Cities | Allentown, Reading, Bethlehem, Chester |
| Time Zone | Eastern Time (ET) |
| Country Code | +1 (USA) |
| Overlay Codes | 610, 484 (co-located) |
Geographic Coverage & Major Cities
Area code 835 is assigned to southeastern Pennsylvania, covering the western and southern suburbs of Philadelphia and the Lehigh Valley. Because it is an overlay, it shares the identical footprint of the 610 and 484 codes rather than covering a separate zone.
- Allentown & Bethlehem – the Lehigh Valley’s largest cities
- Reading – the seat of Berks County
- Chester & West Chester – Delaware and Chester county hubs
- Easton, Norristown & Pottstown – established suburban communities
As an overlay assigned to the same region as 610 and 484, 835 is a relief code intended to supply additional numbers as the area grows.
A Brief History of Area Code 835
Area code 835 was assigned as an all-services overlay for the 610/484 region of southeastern Pennsylvania. The 610 code split from 215 in 1994, and 484 was added as an overlay in 1999. Like its companion codes, the region operates under mandatory 10-digit dialing.
Time Zone & Best Time to Call
Numbers in the 835 area code use Eastern Time (ET). The region observes Daylight Saving Time, shifting from EST (UTC-5) to EDT (UTC-4) between March and November each year.
How to Dial Phone Numbers in Area Code 835
Because 835 shares its region under an overlay, the area requires 10-digit dialing on every call.
Calling within the United States or Canada
- 10-digit dialing: Include the area code – 835-XXX-XXXX.
- 11-digit dialing: You can also dial 1-835-XXX-XXXX; the leading 1 is the NANP country code.
Calling from outside the United States
- Format: [exit code] + 1 + 835 + XXX + XXXX
- From the UK, Europe, or most of Asia/Africa: 00 1 835 XXX XXXX
- From any mobile phone worldwide: +1 835 XXX XXXX
Is Area Code 835 a Scam? Safety & Protection Tips
Area code 835 is a legitimate Pennsylvania area code – a call from it is not fraudulent by default. However, scammers frequently spoof local codes like 835, faking the caller ID so their number appears to come from a trusted local line. Neighbor spoofing, which mimics the first six digits of your own number, is especially common.
Common scam tactics linked to this region
| Scam type | What to watch for |
|---|---|
| Government impersonation | Callers posing as the IRS or SSA threatening arrest or fines |
| Bank & card fraud alerts | Claims of suspicious activity seeking your account details |
| Utility shut-off threats | Fake PECO or PPL Electric disconnection demands |
| Package delivery scams | Fake texts or calls about a failed delivery with a bad link |
How to report, block, and look up 835 callers
- Never share personal or financial details with an unexpected caller, however urgent they sound.
- Block the number using your phone’s built-in call-blocking feature or a reputable call-screening app.
- Look up the number with a trusted reverse phone lookup before returning any call.
- Report it to the FTC at reportfraud.ftc.gov and register at DoNotCall.gov.
Nearby & Related Area Codes in Pennsylvania
Area code 835 shares and borders several other Pennsylvania codes:
- 610 & 484 – the established southeastern PA codes that 835 overlays (see our 610 area code guide)
- 215, 267 & 445 – the city of Philadelphia to the east (see our 215 area code guide)
- 717 & 223 – south-central Pennsylvania to the west (see our 717 area code guide)
- 570 & 272 – northeastern Pennsylvania to the north (see our 570 area code guide)
Explore more codes across the state on our Pennsylvania area codes hub, or browse every prefix in our US area codes directory.
↑ See the complete list of All US Area Codes by State – every area code across all 50 states in one directory.
Explore Neighboring States
Researching area codes just across the state line? Start with these codes in the states that border Pennsylvania:
- New York – area code 212
- New Jersey – area code 201
- Delaware – area code 302
- Maryland – area code 410
- West Virginia – area code 304
- Ohio – area code 216
Frequently Asked Questions About Area Code 835
Where is the 835 area code located?
Area code 835 is assigned to southeastern Pennsylvania – the Philadelphia suburbs, Lehigh Valley, and Berks County – as an overlay of the 610 and 484 codes. It operates on Eastern Time.
What is the difference between 835, 610, and 484?
There is no geographic difference. 835 overlays the same southeastern-PA territory as 610 and 484; it was assigned as a relief code to supply more phone numbers.
Is 835 a landline or cell phone area code?
When active, area code 835 serves landlines, mobile phones, and VoIP numbers throughout southeastern Pennsylvania, just like 610 and 484.
Should I answer a call from an unknown 835 number?
If you are not expecting the call, let it go to voicemail. Legitimate callers leave a message, while spoofed or robocall numbers usually will not. Verify any unfamiliar number with a reverse lookup before calling back.
Related 835 Guides
- Worried about spam or robocalls? Browse our Scam Alerts directory.