7 of 9 Arapahoe County agencies are fully encrypted
9 public safety agencies in Arapahoe County, Colorado have encrypted their radio communications.
Radio encryption in Arapahoe County
All nine Arapahoe County agencies here operate on the State of Colorado DTRS, and eight of them use P25 ADP; only Littleton Police Department is listed with AES-256. Seven encrypt all monitored channels - Littleton, Englewood, Glendale, Sheridan, Cherry Hills Village, Columbine Valley and Arapahoe Community College campus police - while the Arapahoe County Sheriff's Office and Greenwood Village Police Department encrypt tactical channels. Those two are also the unverified records; the other seven have been confirmed against RadioReference. The talkgroup figures are the tightest part of the entry: of 66 catalogued talkgroups, 54 are encrypted and just 12 remain receivable in the clear, so scanner coverage of the agencies listed above is limited.
Compiled from this site's agency database. Encryption status changes without notice — confirm any specific agency on RadioReference.
Radio systems serving Arapahoe County
- State of Colorado DTRS
Of 66 talkgroups catalogued for Arapahoe County, 54 are encrypted and 12 remain in the clear. A scanner can still receive the unencrypted channels.
8 of 9 records here have been checked against a primary source; 1 has not.
System and talkgroup counts come from this site's agency database and change without notice — confirm current status on RadioReference.
Encryption Technology Used in Arapahoe County
Encrypted Agencies in Arapahoe County
| Agency Name | Type | Encryption | Scope |
|---|---|---|---|
| Arapahoe Community College Campus Police Department ✓ | Police | P25 ADP | Fully Encrypted |
| Arapahoe County Sheriff's Office ✓ | Sheriff | P25 ADP | Tactical Only |
| Cherry Hills Village Police Department ✓ | Police | P25 ADP | Fully Encrypted |
| Columbine Valley Police Department ✓ | Police | P25 ADP | Fully Encrypted |
| Englewood Police Department ✓ | Police | P25 ADP | Fully Encrypted |
| Glendale Police Department ✓ | Police | P25 ADP | Fully Encrypted |
| Greenwood Village Police Department | Police | P25 ADP | Tactical Only |
| Littleton Police Department ✓ | Police | P25 AES-256 | Fully Encrypted |
| Sheridan Police Department ✓ | Police | P25 ADP | Fully Encrypted |
Related Case Studies
Learn more about police radio encryption issues in Colorado.
Frequently Asked Questions
Is Arapahoe County police radio encrypted?
7 of 9 agencies in Arapahoe County, Colorado are fully encrypted (78%), while 2 have partial encryption.
Can I listen to Arapahoe County Sheriff on a scanner?
The Arapahoe County Sheriff's Office has encrypted their radio communications using P25 ADP. Scanner monitoring of sheriff operations is no longer possible.
How many police departments in Arapahoe County are encrypted?
8 police departments in Arapahoe County have implemented some level of encryption, along with 1 sheriff offices, 0 fire departments, and 0 EMS agencies.
What encryption technology does Arapahoe County use?
The most common encryption type in Arapahoe County is P25 ADP, used by agencies for secure communications. This encryption blocks public scanner monitoring.
Fight Encryption in Arapahoe County
Join the movement to restore transparency to public safety communications in Arapahoe County, Colorado.