Area code
Area code 737 — Austin, TX
Texas · in service since July 1, 2013
Area code 737 covers parts of Texas; the place with the most of its prefixes is Austin. It is an overlay: 512 serves the same area, so neighbors can have different area codes.
Overlay, same area: 512
Local time in Austin
Spam reports from Sep 23 – Oct 22, 2026
Average #192 of 461 codes
476 FTC complaints
Consumer reports, not verified by the FTC.
See the reports- Time zoneCentral Time
- Local calls10 digits
- Prefixes348 assigned
- Runs out~1Q 2044
- Unwanted call?Block & report
Spam call reports about 737 numbers
Complaints by week
Sep 11 – Oct 22, 2026Show as table
| Week starting | Complaints |
|---|---|
| Sep 7 (3 days) | 12 |
| Sep 14 | 68 |
| Sep 21 | 72 |
| Sep 28 | 78 |
| Oct 5 | 105 |
| Oct 12 | 140 |
| Oct 19 (4 days) | 97 |
Compared with all codes
- Robocalls
- 73%all codes 75%
- Callers with the same code
- 12%all codes 35%
- Rank by complaints
- #192of 461 · middle half
- FCC complaints, Oct 2025 – Sep 2026
- 11548 about text messages
What the calls were about
Sep 11 – Oct 22, 2026
| Subject | Complaints | |
|---|---|---|
| Reducing your debt (credit cards, mortgage, student loans) | 164 29% | |
| Calls pretending to be government, businesses, or family and friends | 52 9% | |
| Dropped call or no message | 42 7% | |
| Medical & prescriptions | 13 2% | |
| Home improvement & cleaning | 8 1% | |
| Computer & technical support | 7 1% |
Where the people who complained live
Sep 11 – Oct 22, 2026
| State | Complaints | |
|---|---|---|
| Texas | 239 42% | |
| California | 42 7% | |
| Florida | 30 5% | |
| Virginia | 28 5% | |
| Ohio | 15 3% |
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 737 location and prefixes
| Exchange (NANPA) | Place | County | Prefixes |
|---|---|---|---|
| AUSTIN | Austin | spans 4 counties | 155 |
| GEORGETOWN | Georgetown | Williamson County | 21 |
| BASTROP | Bastrop | Bastrop County | 19 |
| SAN MARCOS | San Marcos | spans 3 counties | 13 |
| KYLE | Kyle | Hays County | 10 |
| LEANDER | Leander | spans 2 counties | 10 |
| ELGIN | Elgin | spans 2 counties | 9 |
| TAYLOR | Taylor | Williamson County | 8 |
| BUDA | Buda | Hays County | 7 |
| LAMPASAS | Lampasas | Lampasas County | 6 |
Plus 25 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
- April 25, 2000
- Local dialing
- 10 digits (NANPA: 10D)
- NANPA planning letters
- PL-438, PL-276, PL-233
Source: NANPA, NPA database of Oct 24, 2026.
Is 737 running out of numbers?
Previous forecast (October 2025): 2042, moved later by 2 years.
Forecast exhaust year by edition
Source: NANPA NRUF forecast, April 2026 edition.
Who holds 737 prefixes
The five largest of 47 original holders
As listed by NANPA, not today’s carrier.
| Holder (as listed) | Prefixes | |
|---|---|---|
| Onvoy, LLC | 82 24% | |
| T-Mobile USA, Inc. | 33 9% | |
| New Cingular Wireless PCS, LLC | 29 8% | |
| Verizon Wireless | 28 8% | |
| Fractel, LLC | 26 7% |
Source: NANPA CO codes of Oct 23, 2026.
Questions about area code 737
What area code is 737?
A Texas area code, in service since July 1, 2013.
Where is 737 area code, and what time zone is it in?
Austin, TX; Central Time.
Why am I getting spam calls from 737?
476 FTC complaints from Sep 23 – Oct 22, 2026, most often about debt reduction (not verified by the FTC; caller ID can be spoofed).
Will 737 get a new area code?
NANPA forecasts exhaust in 1Q 2044; no relief planning listed.