346 Area CodeHouston, TX
Area code 346 covers Houston and nearby communities in Texas, in the Central Time (CT) zone, home to about 4.2 million people across 101 cities. It overlays 281, 621, 713 and 832, so the region uses several codes and every local call needs all ten digits.
Overview
- Major City
- Houston
- State
- Texas (TX)
- Timezone
- Central Time (CT)
- Current Time
- Overlay
- Yes – shares area with 281, 621, 713, 832
Overview of the 346 Area Code
What is the 346 area code?
The 346 area code serves Houston, Texas, alongside other established area codes. When you see a 346 number, it indicates a local number within this geographic area.
Why was area code 346 created?
The 346 area code was introduced as an overlay to add numbers in Houston once the existing area codes 281, 621, 713, and 832 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 346 Area Code
The 346 area code serves Houston and surrounding areas in Texas. It operates within the Central Time (CT) time zone. It complements the coverage of area codes 281, 621, 713, and 832. This area code covers several key cities, including:
- Houston
- Pasadena
- Pearland
- League City
- Sugar Land
- The Woodlands
Got a call from a 346 number? It came from Houston, TX. Since 346 overlays with 281, 621, 713, and 832, every local call in the region needs all ten digits to land on the right line. Inside 346, Houston holds about 57% of the population; the rest is split across 100 smaller cities.
Houston Area Codes Overview
Houston is served by multiple area codes, reflecting its telecommunications needs. The 346 area code operates alongside 281, 621, 713, 832. Here are the area codes serving this region:
The introduction of the 346 area code helped prevent number exhaustion, ensuring a continuous supply of phone numbers across the geographic area.
What cities does area code 346 cover?
| City | State | Population | % of Area Code | % of City |
|---|---|---|---|---|
| Houston | TX | 2,390,125 | 14% | 100% |
| Pasadena | TX | 149,617 | 1% | 100% |
| Pearland | TX | 129,620 | 1% | 100% |
| League City | TX | 118,456 | 1% | 100% |
| Sugar Land | TX | 109,851 | 1% | 100% |
| The Woodlands | TX | 93,847 | 1% | 81% |
| Baytown | TX | 86,004 | 1% | 100% |
| Missouri City | TX | 78,582 | 1% | 100% |
| Atascocita | TX | 65,844 | 1% | 100% |
| Texas City | TX | 57,875 | 1% | 31% |
* 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 346 been reported for unwanted calls?
Yes – 454 unwanted-call complaints were reported to the FTC for numbers showing a 346 area code (May 29 – Jul 2, 2026).
- 54% robocalls
- ↑ 49% vs prior period
Most-reported subjects
- Other44%201
- Dropped call or no message12%56
- Calls pretending to be government, businesses, or family and friends10%47
* 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.
Which prefixes and exchanges belong to area code 346?
55% assigned to a telco
- 81% Landline
- 19% Wireless
- 0% Unknown
| Prefix | Usage | Carrier |
|---|---|---|
| (346)200- | Landline | Onvoy |
| (346)201- | Landline | Mcimetro Access Transmission Services |
| (346)202- | Landline | Onvoy |
| (346)203- | Landline | Caprock Telecommunications |
| (346)204- | Landline | Centurylink Communications |
| (346)205- | Landline | Centurylink Communications |
| (346)206- | Landline | Onvoy |
| (346)207- | Landline | Southwestern Bell |
| (346)208- | Wireless | Verizon Wireless |
| (346)209- | Landline | Centurylink Communications |
Frequently Asked Questions about the 346 Area Code
Who called me from a 346 number?
A 346 number is assigned to Houston, Texas, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 346 code to look nearby, so a 346 number doesn't prove the caller is local. Recently, 454 unwanted-call complaints were reported to the FTC for numbers showing the 346 code (54% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 346 a scam area code?
No area code is a scam on its own. 346 is a normal, officially assigned code for Houston, Texas. Spam callers spoof local codes to raise the odds you answer, so 346 on your caller ID says nothing about who is really calling. Recently, 454 unwanted-call complaints were reported to the FTC for numbers showing the 346 code (54% flagged as robocalls). Judge the call itself, not the area code.
Why do I keep getting calls from the 346 area code?
Repeated calls from different 346 numbers are usually spoofing: a robocaller rotates through 346 numbers so each call looks local and slips past simple blocks. Recently, 454 unwanted-call complaints were reported to the FTC for numbers showing the 346 code (54% 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 346 number?
If you aren't expecting a 346 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 346 area code?
Block a single 346 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 346 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 346?
Area code 346 covers Houston and the surrounding area in Texas, spanning 101 cities with about 4,199,762 residents. It shares its area with overlay codes 281, 621, 713, 832.
Is 346 a real area code?
Yes. 346 is an active code in the North American Numbering Plan, assigned by NANPA and in service for Houston, Texas. A real code can still show up on spoofed spam calls, so treat unknown 346 calls with normal caution.
What timezone is the 346 area code in?
The 346 area code is in the Central Time (CT). Because a number can be kept when someone moves or switches to VoIP, a specific 346 caller may not be in that zone.
How do I call a 346 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 346 and the seven-digit number. From a mobile phone you can usually just enter +1 346 followed by the number and let the phone add the exit code for you.