The 835 area code covers the same area as 484, including Philadelphia suburbs, Allentown and 55 more places in Pennsylvania.
Area code 835 is in Pennsylvania, on Eastern Time. In the 835 area, phone numbers are given out most in Chester County, then Lehigh and Berks counties. It has been in service since September 2, 2022. 484 and 610 cover the same area, so two neighbours can have different area codes.
- Where
- 7 counties in Pennsylvania, mostly Chester County, Lehigh County and Berks County
- Time zone
- Eastern Time
- In service since
- September 2, 2022
- Shares its area with
- 484 (since 1999) and 610 (since 1994)
- Prefixes in use
- 109
- How to dial
- Local calls need all 10 digits: 835-555-0142.
Find out who called you from an 835 number.
Enter the full 10-digit number to see who it is listed to, the city and state on the listing, and whether it is a mobile, landline or VoIP line. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup.
Philadelphia suburbs holds 40% of the phone prefixes in area code 835.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 109 prefixes in use shows where 835 numbers are actually given out.
- Philadelphia suburbs44 prefixes, 40%
- Allentown31 prefixes, 28%
- Bethlehem7 prefixes, 6%
- Reading5 prefixes, 5%
- Easton3 prefixes, 3%
- Bally2 prefixes, 2%
- Lehighton1 prefix, <1%
- Hamburg1 prefix, <1%
Also served: Downingtown, Catasauqua, Coatesville and Chester Springs and 45 smaller places.
Each prefix, or block of 1,000 numbers inside it, is also handed to a carrier. A number keeps its digits when its owner switches carrier, so the prefix no longer tells you who carries it today. Our free carrier lookup shows which carrier an 835 number is on now.
835 started in 2022 as an overlay on 484, and its ground has not changed since.
2022
835 starts on September 2, 2022, as an overlay on 484: new numbers on the same ground.
An 835 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 835 are 215, 908 and 856.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
These are the questions people ask most about area code 835.
Where is area code 835?
835 covers Philadelphia suburbs, Allentown, Reading and West Chester and 53 more places in Pennsylvania. In the 835 area, phone numbers are given out most in Chester County, then Lehigh and Berks counties.
What state is area code 835 in?
Pennsylvania. 835 is a Pennsylvania area code on Eastern Time.
What cities use area code 835?
The places holding the most 835 prefixes are Philadelphia suburbs, Allentown, Reading, West Chester, Bethlehem, Pottstown, Easton and Collegeville, out of 57 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
What time zone is area code 835 in?
835 is on Eastern Time.
When did area code 835 start?
835 went into service on September 2, 2022, as an overlay on 484: new numbers for the same area.
Is 835 the same area as 484 and 610?
Yes. 484 (since 1999) and 610 (since 1994) cover the same ground as 835. Nobody's number changed when they were added; new lines simply get whichever code has numbers left, so two neighbours can have different codes.
How do I dial an 835 number?
Local calls need all 10 digits: 835-555-0142.
Is 835 a toll-free number?
No. 835 is a regular area code for Philadelphia suburbs and Allentown in Pennsylvania, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 835?
The closest are 215/267/445 (Philadelphia, Pennsylvania), 908 (Elizabeth, New Jersey), 856 (Camden, New Jersey) and 609/640 (Atlantic City, New Jersey), measured between the centres of each area.
Who called me from an 835 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 835 a scam?
835 is a real Pennsylvania area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.