High Quality Numbering Plan Data
NPA NXX, International Dialing Codes, Zip Codes linked to rate centers… all basic elements of telecom connectivity and functionality.
Tele-Tech’s high quality International Dialing Codes, Zip Code & NPA NXX data – the firm foundation for your numbering plan needs.
We’ve developed standards and means for compiling, verifying and cross-checking our telecom data, allowing us to continuously deliver thorough and accurate numbering plan tools.
North American Numbering Plan -- Tele-Tech’s North American Plan data includes details on all assigned NPA NXXs, including:
- Rate Centers
- LATAs
- CLLIs
- Wire Centers
- V&H Coordinates
- Latitude and Longitude
- Time Zones
- Wireless Indicator
- Dialing Patterns
Zip Code Data -- Tele-Tech provides the information to link U.S. Postal Codes (zip codes) to rate centers and/or NPA-NXXs, giving our clients the ability to relate telecom data to geographic and demographic information.
International Dialing Codes -- Our International City Codes database contains over 110,000 records covering the dialing string required to reach specific cities worldwide. And, a wireless indicator field shows which codes are reserved for wireless use and therefore may incur surcharges.
MTAs --Tele-Tech’s MTA IQ database provides the MTA for each assigned NPA-NXX, giving you the ability to assign a jurisdiction (intraMTA or interMTA) to wireless originated calls for intercarrier billing purposes.
Don’t underestimate data power. Utilize the highest caliber data to ensure you’re making the right impact on your bottom line! Even the most basic elements of telecom connectivity, NPA NXX, International Dialing Codes, Zip Code links, need the most basic foundation – high quality data.
When your telecom needs include International Dialing Codes, Zip Code links or NPA NXX – start with proven high quality data – rely on Tele-Tech to be your firm foundation.


