CB Radio Channel Guide for Truckers
All 40 CB radio channels explained — which channels truckers use, channel 19 protocol, emergency channel 9, SSB channels, and regional variations. Whether you are a new driver setting up your first CB radio or an experienced hand looking for a quick reference, this guide covers every channel.
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O TruckingCB Radio Channel Guide for Truckers: All 40 Channels (2026)
The Most Important Channels for Truckers
While there are 40 CB channels, truckers primarily use just a few:
Channel 19 — The Trucker Highway Channel
Channel 19 is THE trucker channel. This is where bear reports, coop status, road conditions, weather alerts, and general trucker communication happens. If you only monitor one channel, this is it. Every trucker with a CB radio is expected to be on channel 19 while driving on the highway.
Channel 9 — Emergency Channel
Channel 9 is the FCC-designated emergency channel. Use it only for genuine emergencies — accidents, medical emergencies, vehicle fires, or hazardous road conditions. While not always monitored by official agencies, other drivers may be listening and can relay your emergency to 911. Never use channel 9 for general conversation.
Channel 17 — Secondary Highway Channel
In some regions, channel 17 serves as a secondary trucker channel, particularly on east-west highways. When channel 19 is congested in busy areas, some drivers switch to channel 17 for clearer communication. Usage is regional and not as universal as channel 19.
All 40 CB Channels Reference
Here is a complete reference of all 40 CB channels and their typical uses:
| Channel | Frequency (MHz) | Common Use |
|---|---|---|
| 1-7 | 26.965-27.035 | General use, local groups |
| 8 | 27.055 | General use |
| 9 | 27.065 | Emergency channel (FCC designated) |
| 10-16 | 27.075-27.155 | General use, regional trucking |
| 17 | 27.165 | Secondary trucker channel (regional) |
| 18 | 27.175 | General use |
| 19 | 27.185 | Primary trucker highway channel |
| 20-34 | 27.205-27.345 | General use, varied purposes |
| 35-40 | 27.355-27.405 | SSB (single sideband) channels — longer range |
SSB Channels for Longer Range
Channel 19 Best Practices
Channel 19 is the trucker's lifeline. Follow these practices to use it effectively:
Monitor channel 19 at all times while driving — Even if you rarely transmit, listening to channel 19 provides valuable real-time information about bears, accidents, construction, and weather ahead.
Prioritize safety information — Bear reports, accident alerts, and hazard warnings always take priority over casual conversation. If you are chatting and someone keys up with a safety alert, stop talking immediately.
Move long conversations to another channel — If you and another driver want to chat at length, agree on an alternate channel (“let's take it to 21”) and move the conversation off channel 19.
CB Radio Is Complementary, Not a Replacement
CB Channel Guide FAQ
Common questions about CB radio channels for truckers
What CB channel do truckers use?
Truckers primarily use CB channel 19 for highway communication. Channel 19 is the unofficial national trucker channel where drivers share bear reports, road conditions, traffic alerts, weigh station status, and general conversation. In some areas, channel 17 is used for east-west highways. Channel 9 is the designated emergency channel.
What are all 40 CB channels used for?
CB radios operate on 40 channels. Channel 9 is the official emergency channel. Channel 19 is the trucker highway channel. Channels 1-7 are general use. Channels 35-40 are used for SSB (single sideband) communication, which provides better range. The remaining channels are available for general use, local clubs, or specific purposes that vary by region.
What is the range of a CB radio?
A standard CB radio with a legal 4-watt AM signal has a range of approximately 3-20 miles depending on terrain, antenna quality, weather, and surrounding structures. In flat, open terrain, range can extend to 15-20 miles. In hilly or urban areas, range drops to 3-5 miles. SSB mode can extend range to 20-50+ miles under favorable conditions.
Is channel 9 still monitored for emergencies?
Channel 9 is still designated as the emergency channel by the FCC, but it is not consistently monitored by law enforcement or emergency services in most areas. In a true emergency, calling 911 on a cell phone is more reliable. However, other truckers and motorists may be monitoring channel 9 and can relay your emergency. It remains good practice to use channel 9 for genuine emergencies.
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