How to find the LEC for any given number?

Jun 22, 2005 10 Replies

I believe this is what you want - you enter NPA and NXX, and it outputs the City, Telco, and the serving office CLLI. One of my customers put me onto it and some other useful sites which I haven't used in so long that I lost the links.

Do a google search on "npa nxx telco" and you can find many more goodies.

Don

I am doing a site by remote site survey for a client and trying to find out all the individual telecom service providers. I have all the address and number info, but I can only verify about 60% with the bills accounting has provided me.



Is there a way I can find out who the provider is for any given local access number? I recall doing something similar for long distance once, but don't know if there is a reverse number lookup that will give me the carrier.



thanks in advance


This should help....

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burris

Probably not.

The Local Calling Guide is the best free source of this kind of info that I know:

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It is quite accurate except for numbers that have been ported. If you really want to know who the serving carrier is, you need access to the LNP database. For example, I have a 607-330 number. If you look it up, the tables say Paetec which was correct until earlier this year when I ported it to Level3, but without checking LNP, there's no way you could tell.

R's, John

telcodata.us will decode NPA/NXX but won't help you if they've ported from an ILEC to a LEC or LEC to an ILEC or to a mobile operator.

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An excellent one I came across in my searches.

Cheers

very impressive... Can anyone confirm that it reports LNP numbers correctly?

Wow! That's a good one, thanks for the link! Certainly works for me.

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It doesn't. I looked up my ported number and it reported the switch where it used to live, not the one where I ported it to.

It does not. I just tried a ported number, and while it provides info about porting eligibility, it did not point to the correct serving carrier (instead, it pointed to the originaly LEC serving taht number, before porting).

Same thing happened to me when I did my number.

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