Area code
Area code 713 — Houston, TX
Texas · in service since 1947
Area code 713 covers Houston, TX. It is an overlay: 281, 346, 621, 832 serve the same area, so neighbors can have different area codes.
Local time in Houston
Spam reports from Sep 23 – Oct 22, 2026
High #46 of 461 codes
853 FTC complaints
Consumer reports, not verified by the FTC.
See the reports- Time zoneCentral Time
- Local calls10 digits
- Prefixes799 assigned
- Runs out~2Q 2039
- Unwanted call?Block & report
Spam call reports about 713 numbers
Complaints by week
Sep 11 – Oct 22, 2026Show as table
| Week starting | Complaints |
|---|---|
| Sep 7 (3 days) | 43 |
| Sep 14 | 304 |
| Sep 21 | 341 |
| Sep 28 | 265 |
| Oct 5 | 172 |
| Oct 12 | 135 |
| Oct 19 (4 days) | 94 |
Compared with all codes
- Robocalls
- 65%all codes 75%
- Callers with the same code
- 80%all codes 35%
- Rank by complaints
- #46of 461 · top tenth (most complaints)
- FCC complaints, Oct 2025 – Sep 2026
- 12016 about text messages
What the calls were about
Sep 11 – Oct 22, 2026
| Subject | Complaints | |
|---|---|---|
| Medical & prescriptions | 245 18% | |
| Calls pretending to be government, businesses, or family and friends | 207 15% | |
| Dropped call or no message | 182 13% | |
| Reducing your debt (credit cards, mortgage, student loans) | 45 3% | |
| Warranties & protection plans | 41 3% | |
| Home improvement & cleaning | 14 1% |
Where the people who complained live
Sep 11 – Oct 22, 2026
| State | Complaints | |
|---|---|---|
| Texas | 1,209 89% | |
| Florida | 26 2% | |
| California | 9 1% | |
| Ohio | 9 1% | |
| Wisconsin | 8 1% |
October 2026 (partial) report · most reported
Consumer reports, not verified by the FTC · source
Source: FTC Do Not Call complaints created Sep 11 – Oct 22, 2026. They are reported by consumers and are not verified by the FTC; caller ID can be spoofed (how we count).
Source: FCC Consumer Complaints data, unwanted calls filed Oct 1, 2025 – Sep 30, 2026, by caller ID; not verified by the FCC.
Area code 713 location and prefixes
| Exchange (NANPA) | Place | County | Prefixes |
|---|---|---|---|
| HOUSTON | Houston | spans 4 counties | 737 |
| HSTNSUBURB | — | — | 20 |
| SPRING | Spring | Harris County | 5 |
| RICHMNRNBG | — | — | 3 |
| APOLLO | — | — | 2 |
| BAYTOWN | Baytown | spans 2 counties | 2 |
| HUFFMAN | — | — | 2 |
| LANGHAMCRK | — | — | 2 |
| SUGAR LAND | Sugar Land | Fort Bend County | 2 |
| BARKER | — | — | 1 |
Plus 8 smaller exchange areas.
Source: NANPA CO codes of Oct 23, 2026; places: U.S. Census Bureau, matched by DialWhere (how).
NANPA record
- Location
- Texas
- Assigned by NANPA
- 1947
- Local dialing
- 10 digits (NANPA: 10D)
- NANPA planning letters
- PL-623
Source: NANPA, NPA database of Oct 24, 2026.
Is 713 running out of numbers?
Previous forecast (October 2025): 2038, moved later by 1 year.
Forecast exhaust year by edition
Source: NANPA NRUF forecast, April 2026 edition.
Who holds 713 prefixes
The five largest of 30 original holders
As listed by NANPA, not today’s carrier.
| Holder (as listed) | Prefixes | |
|---|---|---|
| Southwestern Bell | 470 59% | |
| Spok, Inc. | 62 8% | |
| New Cingular Wireless PCS, LLC | 55 7% | |
| Verizon Wireless | 38 5% | |
| Onvoy, LLC | 25 3% |
Source: NANPA CO codes of Oct 23, 2026.
Questions about area code 713
What area code is 713?
A Texas area code, in service since 1947.
Where is 713 area code, and what time zone is it in?
Houston, TX; Central Time.
Why am I getting spam calls from 713?
853 FTC complaints from Sep 23 – Oct 22, 2026, most often about medical & prescriptions (not verified by the FTC; caller ID can be spoofed).
Will 713 get a new area code?
NANPA forecasts exhaust in 2Q 2039; no relief planning listed.