San Mateo County Sheriff: the only agency listed in San Mateo County
1 public safety agencies in San Mateo County, California have encrypted their radio communications. 100% Encrypted
Radio encryption in San Mateo County
Only one agency appears in the San Mateo County record: the San Mateo County Sheriff, verified as encrypting all monitored channels with P25 AES-256. The county's radio landscape is otherwise crowded, with eight systems listed — the San Mateo County P25 Regional Communications System, Caltrans District 4 South, San Francisco County/City P25, Lawrence Livermore National Laboratory, Fisher Wireless TeamTalk, Signature Wireless Group iDAS Multitrunk, TelePath Corporation Connect Plus and Silke Communications FleetNet. Of 36 talkgroups cataloged across them, 32 are clear and four encrypted. Most documented traffic in the county is therefore receivable; the confirmed exception is the sheriff's office, and no municipal police department is covered by this record.
Compiled from this site's agency database. Encryption status changes without notice — confirm any specific agency on RadioReference.
Radio systems serving San Mateo County
- Caltrans (District 4 - South)
- San Francisco County/City P25
- Lawrence Livermore National Laboratory
- San Mateo County P25 Regional Communications System
- Fisher Wireless TeamTalk
- Signature Wireless Group iDAS Multitrunk (Bay Area)
- TelePath Corporation (Connect Plus)
- Silke Communications FleetNet
Of 36 talkgroups catalogued for San Mateo County, 4 are encrypted and 32 remain in the clear. A scanner can still receive the unencrypted channels.
All 1 San Mateo County records here have been checked against a primary source.
System and talkgroup counts come from this site's agency database and change without notice — confirm current status on RadioReference.
Encryption Technology Used in San Mateo County
Encrypted Agencies in San Mateo County
| Agency Name | Type | Encryption | Scope |
|---|---|---|---|
| San Mateo County Sheriff ✓ | Sheriff | P25 AES-256 | Fully Encrypted |
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Frequently Asked Questions
Is San Mateo County Sheriff radio encrypted?
San Mateo County Sheriff is listed as all narcotics operations using P25 AES-256. It is the only San Mateo County, California agency in this database. This status is listener-reported and not verified against a primary source — check RadioReference for the current picture.
What radio system does San Mateo County Sheriff use?
Listed on Caltrans (District 4 - South), San Francisco County/City P25, Lawrence Livermore National Laboratory, San Mateo County P25 Regional Communications System, Fisher Wireless TeamTalk, Signature Wireless Group iDAS Multitrunk (Bay Area), TelePath Corporation (Connect Plus), Silke Communications FleetNet, California Radio Interoperable System (CRIS). Talkgroup detail and current status are on RadioReference.
Are other San Mateo County agencies encrypted?
San Mateo County Sheriff is the only San Mateo County agency currently listed here. That does not mean it is the only one in the county — it means the others have not been recorded in this database yet.
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