Types of Phone Numbers
Caller AI allows you to instantly provision phone numbers from over 50 countries. Choosing the right type of number is critical for your pickup rates, brand perception, and regulatory compliance.
Quick Comparison
| Type | Best Used For | SMS Capabilities | Trust Level |
|---|---|---|---|
| Local (10-DLC) | Cold Outreach, Local Presence | Yes (Requires Registration) | High (Looks like a cell phone) |
| Toll-Free | Inbound Support, National Brands | Yes (Requires Registration) | High (Looks established) |
| Mobile | International Calls | Yes | Medium |
Local Numbers (10-DLC)
These are standard 10-digit numbers with a specific area code (e.g., 212, 310, 512). They are the most popular choice for outbound sales campaigns.
Pros:
- Higher Answer Rates: People are more likely to answer a call from a local area code than a Toll-Free number.
- Local Presence: Allows you to target specific cities or regions.
Cons:
- Strict Regulation: To send SMS from these numbers in the US, you must register your brand for A2P 10DLC (10-Digit Long Code) compliance.
Toll-Free Numbers
Numbers beginning with 800, 888, 877, etc. These are typically used for inbound customer service lines.
Pros:
- National Reach: Gives your business a "big company" feel.
- Easier Verification: Verification for Toll-Free messaging is often faster than 10DLC registration.
Cons:
- Lower Outbound Answer Rates: Consumers often associate incoming Toll-Free calls with telemarketing or debt collection.
Compliance & "Spam Likely"
Regardless of the number type you choose, maintaining a "clean" reputation is vital. If you make too many short calls, have a high hang-up rate, or get reported by users, carriers may label your number as "Spam Likely."
Recommendation: Use a "Number Pool" to spread your call volume across multiple local numbers to reduce the risk of flagging.