Prefix 713-733 — Houston, TX
Numbers in the 713-733 prefix are registered to the Houston rate center in TX, inside area code 713. The prefix is the second block of a ten-digit US number (713-733-XXXX) and pins the number to a billing locality.
NANPA's central-office code records list SOUTHWESTERN BELL (OCN 9533) as the code holder, assigned April 19, 2001. No thousands-block pooling applies here; the whole block belongs to the code holder unless numbers were ported out.
The rate center lies in the Houston-Pasadena-The Woodlands, TX Metropolitan Statistical Area. The serving LATA is 560. Local time follows the Central zone.
Spoofing means this prefix on your screen doesn't guarantee a Houston caller. Verify independently before trusting a request for money or data.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 713-730 | Houston | SOUTHWESTERN BELL |
| 713-731 | Houston | SOUTHWESTERN BELL |
| 713-732 | Houston | SOUTHWESTERN BELL |
| 713-734 | Houston | SOUTHWESTERN BELL |
| 713-735 | Houston | SOUTHWESTERN BELL |
| 713-736 | Houston | SPOK, INC. |
FAQ
Where is 713-733 located?
The prefix is assigned to the Houston rate center in TX, area code 713. It is part of the Houston-Pasadena-The Woodlands, TX Metropolitan Statistical Area.
Which company owns 713-733 numbers?
SOUTHWESTERN BELL holds the code. Individual numbers may still be ported to other providers.
Is a call from 713-733 safe to answer?
The prefix itself says nothing about the caller. Legitimate Houston businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.