Warning: site is in maintainance mode, data may not be accurate and some queries may not work!
If you have sufficient subscription access, these files will be available for download.
If you do not see the "Download Name" text as a clickable URL, you either do not have a sufficient subscription level, your account has expired, or you are not logged in.
If you do not have an account, and want access to these files, you can Sign up here
If you do have an account, and it has expired, you can Renew it here after Logging in to the site.
If you have any problems, or questions, please don't hesitate to send me an email.



If you need help importing these files into Microsoft Access, check here for some documentation we have on the topic.
Download NameAccess LevelDescription
city-county-zipTelcoData - Advanced MembershipArea code, exchange, State, City, County, Zip (Requires Advanced subscription)
city-county-zip-byratecenterTelcoData - Advanced MembershipArea code, exchange, State, City, County, Zip - By Ratecenter (Requires Advanced Subscription)
clli-lat-lonTelcoData - Advanced MembershipTab separated file containing CLLI codes, Latitude, and Longitude. (Before you ask, no, I will not provide street addresses in downloadable format)
clli-npa-nxxTelcoData - Standard MembershipThis is all telephone exchanges in the US and surrounding areas, format is CLLI|NPA|NXX. Generated during major site updates automatically.
cnutlzd.txtTelcoData - Standard MembershipDrop in replacement for pre-October 2007 NANPA download with the same name (In Oct 2007, NANPA redacted CLLI codes from their downloads. This is the same exact file format, but contains them) - IA, IL, IN, KY, MI, MN, OH, WI
csutlzd.txtTelcoData - Standard MembershipDrop in replacement for pre-October 2007 NANPA download with the same name (In Oct 2007, NANPA redacted CLLI codes from their downloads. This is the same exact file format, but contains them) - AL, AR, LA, MO, MS, TN, TX
eautlzd.txtTelcoData - Standard MembershipDrop in replacement for pre-October 2007 NANPA download with the same name (In Oct 2007, NANPA redacted CLLI codes from their downloads. This is the same exact file format, but contains them) - PR, VI
enutlzd.txtTelcoData - Standard MembershipDrop in replacement for pre-October 2007 NANPA download with the same name (In Oct 2007, NANPA redacted CLLI codes from their downloads. This is the same exact file format, but contains them) - CT, MA, ME, NH, NJ, NY, PA, RI, VT
esutlzd.txtTelcoData - Standard MembershipDrop in replacement for pre-October 2007 NANPA download with the same name (In Oct 2007, NANPA redacted CLLI codes from their downloads. This is the same exact file format, but contains them) - DC, DE, FL, GA, MD, NC, SC, VA, WV
first6-city.csvTelcoData - Standard MembershipA download of the first 6 characters of all the CLLI codes, followed by city and state. Format: CLLI,City,State. Updated every major site update.
lataTelcoData - Standard MembershipList of all LATA numbers and their respective LATAs. Format is LATANUM|LATA Description
lata-npa-nxx-state-city-zip.csvTelcoData - Standard MembershipA download of all exchanges, ordered by LATA, NPA, NXX, State, City, and Zip
npa-exchange-state-ratecenterTelcoData - Advanced MembershipNPA,Exchange,State,Ratecenter,OCN,Company,City,County,Zip,Lat,Lon by Ratecenter
npa-exchange-tzTelcoData - Advanced MembershipArea Code, Exchange, POSIX Timezone (Beta, requires Advanced subscription)
npa-nxx-company-county-zipTelcoData - Advanced MembershipArea code, exchange, Company, State, City, County, Zip, Ratecenter - By Wirecenter (CSV) (Requires Advanced Subscription)
npa-nxx-companytype-ocn.csvTelcoData - Standard MembershipNPA,NXX,COMPANY TYPE,OCN,COMPANY NAME,LATA,RATECENTER,STATE
npa-nxx-state-company-etc-nothousanTelcoData - Standard MembershipAll NPA-NXX along with the following fields: State, Company, OCN, Ratecenter, CLLI, Assign Date, prefix type, Switch name, switch type and lata (Warning: 18MB+, automatically updated whenever a major site update occurs) This file will be truncated if loaded into Excel. Please use MS Access or something like it.
npa-nxx-state-company-etc-thousandsTelcoData - Standard MembershipAll NPA-NXX and thousands blocks along with the following fields: State, Company, OCN, Ratecenter, CLLI, Assign Date, prefix type, Switch name, switch type and lata (Warning: 20MB+, automatically updated whenever a major site update occurs) This file will be truncated if loaded into Excel. Please use MS Access or something like it.
npa-nxx-state-nothousands-ilecTelcoData - Advanced MembershipAll NPA-NXX along with the following fields: State, Company, OCN, Ratecenter, CLLI, Assign Date, prefix type, Switch name, switch type, lata, ILEC Name and ILEC OCN (Warning: 18MB+, automatically updated whenever a major site update occurs) This file will be truncated if loaded into Excel. Please use MS Access or something like it.
npa-nxx-state-thousands-ilecTelcoData - Advanced MembershipAll NPA-NXX and thousands blocks along with the following fields: State, Company, OCN, Ratecenter, CLLI, Assign Date, prefix type, Switch name, switch type, lata, ILEC Name and ILEC OCN (Warning: 20MB+, automatically updated whenever a major site update occurs) This file will be truncated if loaded into Excel. Please use MS Access or something like it.
npastateTelcoData - Standard MembershipStates to areacode mapping (ex. MI,248)
ocn-npanxxTelcoData - Standard MembershipThis is a csv, it goes OCN,NPANXXThousands(newline). Good for billing where your charges are different depending on the OCN of the terminating company.
ocnlist.csvTelcoData - Advanced MembershipOCN, Company Name, Parent Company (if known)
sms-emailTelcoData - Advanced MembershipArea code, exchange, Thousands digit, company, type,email domain (Requires Advanced subscription)
sms-email-ocnTelcoData - Advanced MembershipArea code, exchange, Thousands digit, company, type,email domain, OCN (Advanced Subscription)
type-to-manufTelcoData - Standard MembershipType to manufacturer CSV. Take the commonly used three letter abbreviation for a switch type, and find its manufacturer and model name. Format is ABBREV,Manufacturer,Model. Collected from various sources, not 100% complete, but contains 99% of all the common ones.
wnutlzd.txtTelcoData - Standard MembershipDrop in replacement for pre-October 2007 NANPA download with the same name (In Oct 2007, NANPA redacted CLLI codes from their downloads. This is the same exact file format, but contains them) - CO, ID, KS, MT, ND, NE, NV, OR, SD, UT, WA, WY
wputlzd.txtTelcoData - Standard MembershipDrop in replacement for pre-October 2007 NANPA download with the same name (In Oct 2007, NANPA redacted CLLI codes from their downloads. This is the same exact file format, but contains them) - AK, AS, GU, HI, NN
wsutlzd.txtTelcoData - Standard MembershipDrop in replacement for pre-October 2007 NANPA download with the same name (In Oct 2007, NANPA redacted CLLI codes from their downloads. This is the same exact file format, but contains them) - AZ, CA, NM, OK