Prefix 787-666 — Bayamon Norte, PR

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

Numbers in the 787-666 prefix are registered to the Bayamon Norte rate center in PR, inside area code 787. The prefix is the second block of a ten-digit US number (787-666-XXXX) and pins the number to a billing locality.

Code-holder of record: SUNCOM DBA T-MOBILE USA (OCN 8645), assigned November 5, 2008. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 787-666 numbers may be served by different companies.

The rate center lies in the San Juan-Bayamón-Caguas, PR Metropolitan Statistical Area. The serving LATA is 820. Local time follows the Atlantic zone.

Spoofing means this prefix on your screen doesn't guarantee a Bayamon Norte caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

FAQ

Where is 787-666 located?

The prefix is assigned to the Bayamon Norte rate center in PR, area code 787. It is part of the San Juan-Bayamón-Caguas, PR Metropolitan Statistical Area.

Which company owns 787-666 numbers?

SUNCOM DBA T-MOBILE USA 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 787-666 safe to answer?

The prefix itself says nothing about the caller. Legitimate Bayamon Norte businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.