<div dir="ltr">Haven't looked in awhile, but <a href="http://telcodata.us">telcodata.us</a> has a bit of that information.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Mar 20, 2023 at 9:36 AM Calvin E. via VoiceOps <<a href="mailto:voiceops@voiceops.org">voiceops@voiceops.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Is there an authoritative source for rate center latitude and longitude?<div><br></div><div>Is there a free source for this data?</div><div><br></div><div>I'm aware that BIRRDS/LERG has the Switch CLLI coordinates, but I don't know if the rate center virtual coordinates are also there. NANPA said, "NANPA doesn’t have this information. We suggest you check with a vendor who creates rate center maps, but we can’t recommend one."</div><div><br></div><div>Is rate center data centralized, or invented by carriers and 3rd parties?</div></div>
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