Prefix 713-815 — Houston, TX

NANPA CO code assignment, current as of July 28, 2026.

Area code
713
Prefix (NXX)
815
Rate center
Houston
State
Texas
Time zone
Central
Code holder
LEVEL 3 OF TELECOM OF TEXAS, LLC - TX
OCN
7074
Pooled
Yes (thousands-block pooling)
Assigned
2012-09-26
LATA
560

A phone number starting 713-815 was issued in the Houston rate center of TX — part of area code 713.

NANPA's central-office code records list LEVEL 3 OF TELECOM OF TEXAS, LLC - TX (OCN 7074) as the code holder, assigned September 26, 2012. Because 713-815 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

A scammer can display 713-815 without ever touching TX. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.

Houston is part of the Houston-Pasadena-The Woodlands, TX Metropolitan Statistical Area. For routing purposes it sits in LATA 560. Numbers here keep Central time.

Neighboring prefixes

Prefixes adjacent to 713-815
PrefixRate centerCode holder
713-812 Houston SOUTHWESTERN BELL
713-813 Houston SPOK, INC.
713-814 Houston LEVEL 3 COMMUNICATIONS, LLC - TX
713-816 Houston CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX
713-817 Houston CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX
713-818 Houston CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX

FAQ

Where is 713-815 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 713-815 numbers?

LEVEL 3 OF TELECOM OF TEXAS, LLC - TX holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.

Is a call from 713-815 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.