http://www.localcallingguide.com <http://www.localcallingguide.com/> is generally pretty good but compared against LERG information it is not always 100% current. I've compared LERG NPANXXs against LCG a few times and there are sometimes prefixes present in LERG that are not yet present in LCG. One thing that's great about this site though is that aside from NPANXX information you can also use the data on this website to establish local calling area maps between rate centres. This information is not even available through LERG alone. Regards, Justin Randall _____ From: voiceops-bounces at voiceops.org [mailto:voiceops-bounces at voiceops.org] On Behalf Of Scott Berkman Sent: Friday, December 11, 2009 3:24 PM To: 'Ujjval Karihaloo'; voiceops at voiceops.org Subject: Re: [VoiceOps] LERG Data I'm not familiar with telcodata, but for general purposes http://localcallingguide.com/ is free and very up to date as far as I can tell. -Scott From: voiceops-bounces at voiceops.org [mailto:voiceops-bounces at voiceops.org] On Behalf Of Ujjval Karihaloo Sent: Friday, December 11, 2009 1:40 PM To: voiceops at voiceops.org Subject: [VoiceOps] LERG Data How reliable is www.telcodata.us for LERG clone data? Its about $5/month. Just wondering if that is a good alternative to Telcordia? Ujjval Karihaloo VP Voice Engineering IP Phone: +13032428610 E-Fax: +17202391690 SimpleSignal Inc. 88 Inverness Circle East Suite K105 Englewood, CO 80112 <http://www.simplesignal.com/>