Emergency Medical Services Partially Encrypted

Worcester EMS

Worcester, Massachusetts

What you can do right now

Encryption Details

Encryption Type P25 AES-256
Scope Some talkgroups encrypted (12.2% per RadioReference data); others remain in the clear.
Technical Details P25 AED-256

Verified Talkgroup Data

Verified Mar 6, 2026 Moderate confidence
37 Total Talkgroups
3 Encrypted
3 Mixed
31 Unencrypted
12% Encrypted
Radio System: Commonwealth Of Massachusetts Interoperable Radio System (CoMIRS), OneVoice Network, Massachusetts State Police
View 6 talkgroups
DEC Alpha Tag Description Status
1059 Camb FD-F5 Cambridge Fire EMS System Mixed
1227 Camb Pro EMS Cambridge - Pro EMS Mixed
4487 WorcEMS 3 Worcester EMS 3 Encrypted
4449 WorcFD TAC12 Worcester Fire Tac 12 Encrypted
1201 Crimson EMS Crimson EMS Mixed
4375 Worc PD F4 TAC4 Worcester PD F4 Tac-4 Encrypted

Verification Status

We do have per-talkgroup data for Worcester EMS from the RadioReference API, and used it to set the encryption scope shown above — but no additional human-reviewed source (a live feed check or a dated news account) has been recorded for this record, so treat it as a data-quality correction rather than an independently confirmed verification. Check the live RadioReference database directly for current status.

If you monitor Worcester EMS directly or have more current information, the fastest way to fix this is to update the RadioReference Wiki entry — our data pulls from there and from the RadioReference API on a regular refresh cycle.

Shared Radio System

Worth knowing before reading this as specific to Worcester EMS: Commonwealth Of Massachusetts Interoperable Radio System (CoMIRS) / OneVoice Network / Massachusetts State Police is shared county-wide or regional infrastructure, also used by 0 other agencies in Worcester County — one radio system, several agency pages.

Worcester County Context

Worcester County is a mixed picture: 1 of 4 agencies we track here are fully encrypted (25%), which means some neighboring departments are still audible on a scanner.

What This Means

This agency is listed as encrypting some communications while leaving others open. The per-channel breakdown is unverified — check RadioReference for current status.

See encryption status nationwide Interactive map showing which US police departments have encrypted their radios. Open the encryption map →

Frequently Asked Questions

Is Worcester EMS radio encrypted?

Worcester EMS is listed in our records with P25 AES-256 encryption — a listing we haven't yet verified against live talkgroup data. This agency is listed as encrypting some communications while leaving others open. The per-channel breakdown is unverified — check RadioReference for current status.

Can I listen to Worcester EMS on a police scanner?

Possibly. Our database lists Worcester EMS as encrypting some of its talkgroups while leaving others open, which would leave some channels accessible. The listing is unverified — check RadioReference for specific talkgroup status.

Why do agencies like Worcester EMS encrypt their radio?

Officer safety and operational security are the reasons agencies give. What rarely comes with that explanation is Worcester County-specific evidence that open communications ever caused a problem, while the loss of public oversight and the friction with still-unencrypted neighboring agencies are both immediate and real.

Can Worcester County reverse the encryption decision?

Yes, and some departments already have. Because encryption here is a choice rather than a technical necessity, the path back runs through the same people who chose it: budget hearings, records requests, and residents who keep asking in public.

What can I do about Worcester EMS encryption?

Contact the officials who oversee Worcester EMS's budget directly and ask why full encryption was chosen over partial alternatives. Pair that with a FOIA request for recordings and policy records, and look for an existing coalition in Worcester County, or start one, since agencies respond differently to organized, sustained pressure than to individual complaints.

Advertisement