Area code 484 covers Allentown and surrounding areas in Pennsylvania. It was activated in 1999 as an overlay of area code 610. Today it shares its territory with overlay codes 610 and 835. For the full picture, see all Pennsylvania area codes.
| State | Pennsylvania |
|---|---|
| Primary city | Allentown |
| Cities also served | Allentown, Bethlehem, Reading, Norristown, West Chester, Easton, Pottstown, King of Prussia |
| Time zone | Eastern (UTC-5 / UTC-4 DST) |
| Year established | June 5, 1999 |
| Original 1947 NPA? | No |
| Parent code | 610 |
| Overlay codes | 610, 835 |
| Currently in use? | Yes, actively assigned |
| Ten-digit dialing required? | Yes |
Cities Served by Area Code 484
Area code 484 serves Eastern and southeastern Pennsylvania, including the Lehigh Valley, Delaware Valley, Philadelphia Main Line, and Delaware County, including the following cities and communities:
- Allentown
- Bethlehem
- Reading
- Norristown
- West Chester
- Easton
- Pottstown
- King of Prussia
Nearby area codes covering the same broader region include: 610, 835, 215, 267, 445.
How to Get a 484 Phone Number
There are three ways to get a phone number with the 484 area code, each suited to a different need:
Ready to Get a 484 Number?
One-time fee. No monthly charges. Port to any carrier in 3–5 business days. NYC's most trusted source since 2009.
Browse 484 Numbers →- Buy from a premium-number specialist. Companies that hold curated inventories of specific area codes can sell you a 484 number directly, often with a one-time fee and ownership transferred to you (no recurring carrier fees). This is the option for picking a specific memorable number, or for getting an area code that most carriers won’t let you request. Browse our 484 inventory.
- Sign up with a VoIP carrier. Voice-over-IP services (such as Google Voice, OpenPhone, Grasshopper, and many others) can typically provision a 484 number on request, especially for active overlay codes. You won’t usually get to pick the specific number, but you’ll get a working line in the area code. This is the cheapest option for anyone who doesn’t need a particular number.
- Port an existing 484 number. If you already have a 484 phone number with another carrier, you can transfer it (port it) to a new service provider while keeping the number. This works for landlines, cell phones, and VoIP services, though landlines outside of Pennsylvania sometimes can’t accept inbound ports of 484 numbers due to 911 routing rules.
Looking for a 484 number? 212areacode.com offers premium 484 numbers for Allentown, Pennsylvania — choose your number, port it to any carrier in 3–5 business days, and pay a one-time fee with no monthly charges. Browse available 484 numbers →
Frequently Asked Questions
Is the 484 area code still in use?
Yes. 484 is actively assigned to new phone lines in Eastern and southeastern Pennsylvania, including the Lehigh Valley, Delaware Valley, Philadelphia Main Line, and Delaware County.
What is the difference between 484 and 610?
Today they share the same geographic territory in Pennsylvania. New phone lines in the area may be assigned either code. The two codes work identically for calling, billing, and service.
What is the parent area code of 484?
Area code 484 is an overlay of 610. Both codes serve the same region of Pennsylvania.
Can I get a 484 number if I don't live in Pennsylvania?
Yes. Phone numbers are no longer tied to a physical address. With VoIP service or a number broker, you can hold a 484 number from anywhere in the world. The number routes to whatever device or carrier you specify.
Is 484 a scam area code?
No. 484 is a legitimate, active area code for Eastern and southeastern Pennsylvania, including the Lehigh Valley, Delaware Valley, Philadelphia Main Line, and Delaware County. Like any area code, scammers occasionally spoof 484 caller IDs, but the code itself is heavily used by real Pennsylvania businesses, government offices, and residents.
What cities does the 484 area code serve?
Area code 484 serves eastern and southeastern Pennsylvania, including Allentown, Bethlehem, Reading, Norristown, West Chester, Easton, Pottstown, and King of Prussia, along with much of the Lehigh Valley, Delaware Valley, and Philadelphia Main Line.
Is 484 an overlay or a standalone area code?
484 is an overlay code. It was introduced on June 5, 1999, to cover the same geographic territory as area code 610 in southeastern Pennsylvania. A second overlay, 835, was added on September 2, 2022. All callers in the region must dial ten digits.
Why was area code 484 created?
Rapid population growth and the proliferation of cell phones and pagers in the late 1990s exhausted available numbers in area code 610. The Pennsylvania Public Utility Commission introduced 484 as an overlay on June 5, 1999, along with mandatory ten-digit dialing, to meet demand without splitting the geographic territory.
What is area code 835, and how does it relate to 484?
Area code 835 is a second overlay for the same southeastern Pennsylvania territory covered by 484 and 610. The Pennsylvania PUC approved it in December 2021, and it went into service on September 2, 2022, to address the projected exhaustion of 610/484 number supply.
