713 Area Code: Houston, Texas
Area code 713 serves Houston and Langham Creek, Texas in the Central time zone, in service since 1947. Consumers have filed 5,917 unwanted-call complaints against 4,912 different 713 numbers, 835 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 713 at a glance
- State
- Texas
- Main cities
- Houston, Langham Creek + 11 more
- Counties
- Harris County, Fort Bend County, Galveston County, Liberty County + 1 more
- Local time
- —Central
- In service since
- 1947
- Codes split off
- 409 (1982)
- Local dialing
- 10 digits (area code + number)
- Exchanges
- 19 rate centers, 786 prefixes
Sources: NANPA area code and central office code records (refreshed weekly); cities and counties matched from US Census Bureau and USGS place names.
Most-reported 713 numbers
Ranked by FTC Do Not Call complaints this month, then all-time FTC and FCC complaints. Only numbers with enough complaints for a full report page are listed. Click one for what it was reported for and where.
What calls from 713 numbers are about
2,984 FTC Do Not Call complaints about 713 numbers since Jul 24. The most common named subject is medical & prescriptions, at 20% of complaints (51% of those were recorded messages). Overall, 70% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified90730%
- Medical & prescriptions58420%
- No subject given50317%
- Impostor (government, business, family)37012%
- Dropped call / no message35312%
- Warranties & protection plans943%
- Debt reduction803%
FCC complaints by call type, last 2 years
- Live Voice11451%
- Prerecorded Voice8036%
- Text Message2913%
13% of recent FCC complaints about 713 numbers are about text messages, not calls.
When 713 spam calls come in
33% of complaints that give a call time describe calls between 9am and 12pm. 96% came Monday to Friday, most on Thursdays, the pattern of call-center robocall campaigns that run on business hours. Times are as consumers reported them to the FTC.
By hour of the day
By day of the week
Is it getting worse?
826 FTC complaints about 713 numbers in the last four weeks, down 27% on the four weeks before. FCC complaints about 713 numbers peaked in 2018 (538); the FTC's daily Do Not Call data has carried most of the volume since mid-2026.
FTC complaints per week
FCC complaints per year
Years shown as '15 to '26; the current year is partial.
Who gets these calls
81% of the FTC complaints about 713 numbers came from people whose own phone number also starts with 713, and 91% from Texas. Calls that look local to the person receiving them are the signature of neighbor spoofing: robocallers display a number from your own area code because you're more likely to answer.
Where complainants live
- Texas2,70991%
- Florida391%
- Colorado211%
- New York171%
- California161%
What people with 713 numbers report
People whose own number starts with 713 filed 4,741 FTC complaints since Jul 24. 51% were about calls showing another 713 number. The most common named subject was medical & prescriptions.
Area codes on the calls they reported
- 713 (same code)2,40851%
- 8323377%
- 2811794%
- 833 (toll-free)1002%
- 346842%
Busiest 713 prefixes this month
FTC complaints in the last 30 days, grouped by the first six digits. When one prefix collects complaints about many different numbers, a campaign is usually cycling through that block. The carrier is who NANPA assigned the prefix to, not who made the calls.
| Prefix | Complaints | Numbers | Carrier | Exchange |
|---|---|---|---|---|
| (713) 565-xxxx | 26 | 22 | Onvoy (Sinch) | Huffman |
| (713) 564-xxxx | 12 | 11 | Onvoy (Sinch) | Seabrook |
| (713) 352-xxxx | 12 | 11 | Bandwidth.com | Apollo |
| (713) 255-xxxx | 11 | 11 | Onvoy (Sinch) | Houston |
| (713) 347-xxxx | 11 | 11 | Onvoy (Sinch) | Houston |
Carriers operating in 713
NANPA has assigned 786 713 prefixes (NPA-NXX central-office codes) across 19 rate centers: 24% to wireless carriers, 75% to landline and VoIP operators; 43% are pooled blocks shared by several carriers. 1 prefix was assigned in the last 12 months (newest 2026-02-25). The carrier holding a prefix is who the number was issued through. It says nothing about who is calling, since caller ID is routinely spoofed.
| Carrier | Type | Prefixes | Rate centers | Newest assignment |
|---|---|---|---|---|
| Southwestern Bell (AT&T) | Incumbent landline (ILEC) | 470(60%) | 6 | 2010-12-16 |
| Spok, INC. | Wireless | 62(8%) | 1 | — |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 55(7%) | 1 | 2001-05-08 |
| Verizon Wireless (Cellco Partnership) | Wireless | 38(5%) | 4 | 2026-02-25 |
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 25(3%) | 5 | 2022-07-19 |
| Aerial Communications, INC. | Wireless | 24(3%) | 4 | 2023-10-04 |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 19(2%) | 2 | 2013-08-19 |
| MCImetro (Verizon Business) | Competitive / VoIP (CLEC) | 19(2%) | 2 | 2007-08-22 |
| Teleport Communications America, LLC | Competitive / VoIP (CLEC) | 13(2%) | 2 | 2014-01-21 |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 11(1%) | 3 | 2017-09-22 |
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 9(1%) | 7 | 2025-09-02 |
| Bandwidth.com | Competitive / VoIP (CLEC) | 6(1%) | 3 | 2020-08-14 |
Largest rate centers (exchanges) by prefixes: Houston (738), Houston suburbs (20), Spring (5), Richmond–Rosenberg (3), Apollo (2), Baytown (2), Huffman (2), Langham Creek (2), Sugar Land (2), Barker (1). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 713 numbers
Before you call back
- Medical & prescriptions is the top named complaint here. Don't confirm your Medicare or insurance number to a caller. Medicare won't cold-call you to sell braces, test kits or plans. Read about Medicare scam calls.
- Look up the full number above. A missed call from 713 with no voicemail is usually a robocall; anyone who needs you will leave a message.
- If it looks like a neighbor's number, it may be spoofed. See calls from your own area code.
- Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).
Report it in Texas
- Unwanted sales calls and robocalls: donotcall.gov (FTC). Scams and fraud: ReportFraud.ftc.gov.
- Spoofing, texts and call-blocking problems: FCC consumer complaints.
- State complaints: Texas Attorney General.
- Texas is one of the states that maintains its own Do Not Call registry alongside the federal National Do Not Call Registry, so telemarketers calling Texas numbers are expected to check both lists. Registering on the federal list at donotcall.gov is free and never expires; the state list is administered separately and may have its own registration process and renewal period.
Your FTC and FCC reports are published (without your name or number) in the datasets this page is built from. How to report unwanted calls.
Area code 713: questions answered from the data
Where is area code 713?
Area code 713 serves Houston and Langham Creek, Texas, covering Harris County, Fort Bend County and Galveston County and 2 more counties. It has been in service since 1947.
What time zone is area code 713 in?
Area code 713 is in the Central time zone (UTC−6, or UTC−5 during daylight saving time). The current local time is shown at the top of this page.
Which area codes overlay 713?
281 (in service 1996), 832 (in service 1999), 346 (in service 2014) and 621 (in service 2025) serve the same area as 713. New numbers there can be issued with any of these codes, and local calls need all 10 digits. A spoofed call can display any of them.
What are calls from 713 numbers usually about?
Since Jul 24, consumers filed 2,984 FTC Do Not Call complaints about 713 numbers. The most common named subject was medical & prescriptions: 20% of complaints, 51% of them recorded messages. Across all subjects, 70% of callers who answered the question said the call was a robocall.
When do 713 spam calls happen?
33% of the complaints that give a call time describe calls between 9am and 12pm, and 96% came on weekdays, most often on Thursday. Times are as consumers reported them.
Are calls from 713 numbers really local?
Not necessarily. 81% of the FTC complaints about 713 numbers came from people whose own phone number also starts with 713, and 91% from Texas. Calls that look local to the person receiving them are the signature of neighbor spoofing: robocallers display a number from your own area code because you're more likely to answer.
Are 713 robocalls increasing?
In the four weeks to Oct 20, consumers filed 826 FTC complaints about 713 numbers, 27% fewer than the four weeks before.
How do I report a 713 scam call in Texas?
Report unwanted sales calls and robocalls to the FTC at donotcall.gov, and scams to ReportFraud.ftc.gov. The FCC takes complaints at consumercomplaints.fcc.gov. In Texas, the Texas Attorney General also handles consumer complaints about scam calls. Reports feed the public data this page is built from.
Overlay and nearby area codes
Sources: FTC Do Not Call complaints (unverified consumer reports), published every weekday and available here from Jul 24; FCC Consumer Complaint Data, public record, imported nightly; NANPA numbering records. A number appearing here means consumers reported calls that displayed it. Caller ID can be spoofed.