Overview of the 436 Area Code
What is the 436 area code?
The 436 area code serves Parma, Ohio, alongside other established area codes. When you see a 436 number, it indicates a local number within this geographic area.
Why was area code 436 created?
The 436 area code was introduced as an overlay to add numbers in Parma once the existing area codes 216 and 440 began to run out of available prefixes. It added a new supply of numbers without requiring current residents to change their existing digits.
Geographic Coverage of the 436 Area Code
The 436 area code serves Parma and surrounding areas in Ohio. It operates within the Eastern Time (ET) time zone. It complements the coverage of area codes 216 and 440. This area code covers several key cities, including:
- Parma
- Lorain
- Elyria
- Mentor
- Strongsville
- North Ridgeville
Got a call from a 436 number? It came from Parma, OH. Since 436 overlays with 216 and 440, every local call in the region needs all ten digits to land on the right line. Inside 436, Parma holds about 8% of the population; the rest is split across 91 smaller cities.
Parma Area Codes Overview
Parma is served by multiple area codes, reflecting its telecommunications needs. The 436 area code operates alongside 216, 440. Here are the area codes serving this region:
The introduction of the 436 area code helped prevent number exhaustion, ensuring a continuous supply of phone numbers across the geographic area.
What cities does area code 436 cover?
| City | State | Population | % of Area Code | % of City |
|---|---|---|---|---|
| Parma | OH | 79,350 | 1% | 81% |
| Lorain | OH | 65,751 | 1% | 100% |
| Elyria | OH | 53,604 | 1% | 100% |
| Mentor | OH | 47,113 | 1% | 100% |
| Strongsville | OH | 45,768 | 1% | 100% |
| North Ridgeville | OH | 37,504 | 1% | 100% |
| Westlake | OH | 34,232 | 1% | 100% |
| North Olmsted | OH | 31,690 | 1% | 100% |
| North Royalton | OH | 30,894 | 1% | 100% |
| Avon Lake | OH | 26,342 | 0% | 100% |
* Sources: Population – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). Area code assignments – NANPA CO Code data. See our data methodology.
Has area code 436 been reported for unwanted calls?
Yes – 1 unwanted-call complaint was reported to the FTC for numbers showing a 436 area code (Jun 1 – Jun 1, 2026).
- 0% robocalls
Most-reported subjects
- Other100%1
* Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints. Source: FTC Do Not Call (DNC) Reported Calls Data, retrieved 2026-07-05.
Frequently Asked Questions about the 436 Area Code
Who called me from a 436 number?
A 436 number is assigned to Parma, Ohio, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 436 code to look nearby, so a 436 number doesn't prove the caller is local. Recently, 1 unwanted-call complaint was reported to the FTC for numbers showing the 436 code (0% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 436 a scam area code?
No area code is a scam on its own. 436 is a normal, officially assigned code for Parma, Ohio. Spam callers spoof local codes to raise the odds you answer, so 436 on your caller ID says nothing about who is really calling. Recently, 1 unwanted-call complaint was reported to the FTC for numbers showing the 436 code (0% flagged as robocalls). Judge the call itself, not the area code.
Why do I keep getting calls from the 436 area code?
Repeated calls from different 436 numbers are usually spoofing: a robocaller rotates through 436 numbers so each call looks local and slips past simple blocks. Recently, 1 unwanted-call complaint was reported to the FTC for numbers showing the 436 code (0% flagged as robocalls). Blocking one number rarely helps; voicemail screening, your carrier spam filter, and the Do Not Call Registry work better.
Should I answer an unknown 436 number?
If you aren't expecting a 436 call, let it ring to voicemail. Legitimate callers leave a message, most robocallers hang up when no one picks up, and answering can mark your number as active and bring more calls.
How do I block calls from the 436 area code?
Block a single 436 number from your recent-calls list (iPhone: tap the number, then Block this Caller; Android: tap the number, then Block or report spam). To cut the volume, turn on Silence Unknown Callers on iPhone or spam protection on Android, enable spam filtering from your carrier, and register at DoNotCall.gov. Blocking the entire 436 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 436?
Area code 436 covers Parma and the surrounding area in Ohio, spanning 92 cities with about 1,044,116 residents. It shares its area with overlay codes 216, 440.
Is 436 a real area code?
Yes. 436 is an active code in the North American Numbering Plan, assigned by NANPA and in service for Parma, Ohio. A real code can still show up on spoofed spam calls, so treat unknown 436 calls with normal caution.
What timezone is the 436 area code in?
The 436 area code is in the Eastern Time (ET). Because a number can be kept when someone moves or switches to VoIP, a specific 436 caller may not be in that zone.
How do I call a 436 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 436 and the seven-digit number. From a mobile phone you can usually just enter +1 436 followed by the number and let the phone add the exit code for you.