The difference between a local calling area and rate center is very confusing, but there is a HUGE difference. A rate center identifies one or more cities that are grouped together so they can be assigned to a particular serving wire center. Local calling areas identify which areas an end user can call for free. Here's the hitch, you can have multiple rate centers in a single local calling area. The only way to find out what the LEC considers a local calling area is to go to the LECs tariff and look it up (which is really what all the fancy databases do for you.) Almost all the LECs are set up pretty similarly in this area so let me show you how to find one and then you can look through any LEC tariff for the rest yourself. Let's just say we want to find the local calling area for Qwest Washington state rate centers. You would go to http://tariffs.qwest.com:8000/Q_Tariffs/QT_Tariff_State_Page/index.htm and select Washington. Then click on Exchange and Network Services Tariff. Then click on section 5.1.1 List of Exchange Areas and Local Calling Areas. It will give you a list like this: Local Exchange and Local Calling Area LOCAL EXCHANGE LOCAL CALLING AREA Aberdeen- Hoquiam Aberdeen-Hoquiam, Copalis, Grayland, Humptulips, Lake Quinault[1], Montesano, Ocosta, Pacific Beach, Westport That means that from Aberdeen-Hoquiam rate center, you can call any of the rate centers on the right. Mary Lou Carey CLEC Consultant BackUP Telecom Consulting marylou at backuptelecom.com 615-791-9969 -----Original Message----- From: voiceops-bounces at voiceops.org [mailto:voiceops-bounces at voiceops.org] On Behalf Of Scott Berkman Sent: Thursday, September 09, 2010 3:35 PM To: 'Jed Stafford' Cc: voiceops at voiceops.org Subject: Re: [VoiceOps] local calling database I think it's a terminology difference, and I may not have been clear on which the OP was asking about. The LERG, or Local Exchange Routing Guide, contains information that defines LATAs, Rate Centers, localities, Numbering Plans, and exchange/LRN routing data among other things. I think it is a stretch to say that this does not count as information pertinent to a "local calling database". Local calling areas (which to me refers to what calls are classified as local and are "free" vs. which are LD or more generally "toll" and are charged usage for) are a billing concept usually based on "rating" calls that can differ from carrier to carrier and plan to plan. Telcordia talks about this here http://www.trainfo.com/products_services/tra/catalog_details.html and http://www.trainfo.com/products_services/tra/downloads/tra_catalog.pdf. -Scott -----Original Message----- From: Jed Stafford [mailto:jedsta at gmail.com] Sent: Wednesday, September 08, 2010 5:42 PM To: Scott Berkman Cc: Corey Edwards; <voiceops at voiceops.org> Subject: Re: [VoiceOps] local calling database To help clarify, the LERG does not contain local routing information. LCADS does which Telcordia sells but I've heard much better things about the KFR data from people who have compared both. As a point of interest our Qwest team pointed us to localcallingguide as the resource they wanted us to use for local calling areas. Sent from my iPhone On Sep 8, 2010, at 2:13 PM, "Scott Berkman" <scott at sberkman.net> wrote:
Obvious answer, but...
The LERG: http://www.telcordia.com/products_services/trainfo/catalog_details.htm l
-Scott
-----Original Message----- From: voiceops-bounces at voiceops.org [mailto:voiceops-bounces at voiceops.org] On Behalf Of Corey Edwards Sent: Wednesday, September 08, 2010 4:25 PM To: voiceops at voiceops.org Subject: [VoiceOps] local calling database
Currently I'm using some Perl scripts tied to localcallingguide.com's XML API to build a local calling database, and that seems to be working great, but in the spirit of due diligence I'm looking for feedback about other local calling databases out there, both free and commercial.
On or off list replies appreciated.
Corey
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