Prefix 617-286 — Charlestown, MA

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

Area code
617
Prefix (NXX)
286
Rate center
Charlestown
State
Massachusetts
Time zone
Eastern
Code holder
PAETEC ITEL, LLC
OCN
829J
Pooled
Yes (thousands-block pooling)
Assigned
2001-02-16
LATA
128

Numbers in the 617-286 prefix are registered to the Charlestown rate center in MA, inside area code 617. The prefix is the second block of a ten-digit US number (617-286-XXXX) and pins the number to a billing locality.

NANPA's central-office code records list PAETEC ITEL, LLC (OCN 829J) as the code holder, assigned February 16, 2001. Because 617-286 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

The rate center lies in the Boston-Cambridge-Newton, MA-NH Metropolitan Statistical Area. The serving LATA is 128. Local time follows the Eastern zone.

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

Neighboring prefixes

Prefixes adjacent to 617-286
PrefixRate centerCode holder
617-283 Boston NEW CINGULAR WIRELESS PCS, LLC - DC
617-284 Somerville VERIZON NEW ENGLAND INC.
617-285 Saugus CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA
617-287 Dorchester VERIZON NEW ENGLAND INC.
617-288 Dorchester VERIZON NEW ENGLAND INC.
617-289 Boston VERIZON NEW ENGLAND INC.

FAQ

Where is 617-286 located?

The prefix is assigned to the Charlestown rate center in MA, area code 617. It is part of the Boston-Cambridge-Newton, MA-NH Metropolitan Statistical Area.

Which company owns 617-286 numbers?

PAETEC ITEL, LLC 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 617-286 safe to answer?

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