I forgot Twilio lets you download PCAPs of calls. I grabbed one at random: P-Asserted-Identity: <sip:[email protected]:5060> SIP PAI Address: sip:[email protected]:5060 SIP PAI User Part: +14632018300 E.164 number (MSISDN): 14632018300 SIP PAI Host Part: 206.147.72.38 SIP PAI Host Port: 5060
-A On Wed, Mar 18, 2026 at 8:44 AM Aaron C. de Bruyn <[email protected]> wrote: > I did NOT know that. :) > I'm not a telco or service provider. Just part of a company that's > unfortunate enough to help a handful of customers manage their own internal > Asterisk or FreePBX systems. > > Most of my customers use Twilio upstream. I don't think Twilio logs that > header, and I don't see anything like it in the Asterisk logs. (Not sure > if it even gets passed to us or if it just doesn't logs it.) > > -A > > On Wed, Mar 18, 2026 at 8:36 AM Mark R Lindsey <[email protected]> > wrote: > >> So...did you get any Identity headers? A traceback with ITG, or maybe an >> Identity header, is your only hope for tracing the origin. >> >> I'm including the below, not to say that you, Aaron, don't know this, but >> just in case it's valuable to anyone else reading: >> >> In the case of your first number, it belongs to a thousand block >> assigned initially to Bandwidth.com...but that's not even meaningful for >> routing a call to them today. You'd have to do an LRN lookup to find out >> how to deliver a call back to the legitimate owner of this number. >> >> I did an LRN lookup for that first one, and it's currently ported to >> Onvoy, one of the brands of Sinch. But again, that only tells us how to get >> a call TO that legitimate owner. >> >> What you want to know is how they're sending calls to you. And if you're >> getting an Identity header it would be at least interesting. >> >> Failing that, you can file a report with the Industry Traceback Group to >> report illegal calls: >> >> https://tracebacks.org/traceback-requests/ >> >> >> *Mark R Lindsey | +1-229-316-0013 | [email protected] <[email protected]> | LinkedIn >> <https://www.linkedin.com/in/markrlindsey/>* >> >> >> >> >> >> >> >> >> >> On Mar 18, 2026, at 11:22, Aaron C. de Bruyn via VoiceOps < >> [email protected]> wrote: >> >> A bunch of numbers out of Indiana have been spamming my customers for >> about a week. >> >> Most are automated recordings about how your Google business listing is >> wrong and needs to be fixed so customers can find you. Sometimes it's a >> human prefixed by the telltale "BWOOP" sound. >> >> +14632000068 - BANDWIDTH.COM <http://bandwidth.com/> CLEC LLC IN >> +14632001925 - BANDWIDTH.COM <http://bandwidth.com/> CLEC LLC IN >> +14632004002 - BANDWIDTH.COM <http://bandwidth.com/> CLEC LLC IN >> +14632005772 - BANDWIDTH.COM <http://bandwidth.com/> CLEC LLC IN >> +14632006038 - BANDWIDTH.COM <http://bandwidth.com/> CLEC LLC IN >> +14632006422 - BANDWIDTH.COM <http://bandwidth.com/> CLEC LLC IN >> +14632006730 - BANDWIDTH.COM <http://bandwidth.com/> CLEC LLC IN >> +14632009587 - BANDWIDTH.COM <http://bandwidth.com/> CLEC LLC IN >> +14632018300 - BHN IP ENABLED SERVICES LLC >> +14632018413 - BHN IP ENABLED SERVICES LLC >> +14632018586 - BHN IP ENABLED SERVICES LLC >> +14632018682 - BHN IP ENABLED SERVICES LLC >> +14632027042 - LEVEL 3 COMMUNICATIONS LLC IN (Lumen) >> +14632027073 - LEVEL 3 COMMUNICATIONS LLC IN (Lumen) >> +14632027200 - LEVEL 3 COMMUNICATIONS LLC IN (Lumen) >> +14632027252 - LEVEL 3 COMMUNICATIONS LLC IN (Lumen) >> +14632027397 - LEVEL 3 COMMUNICATIONS LLC IN (Lumen) >> +14632027539 - LEVEL 3 COMMUNICATIONS LLC IN (Lumen) >> +14632027678 - LEVEL 3 COMMUNICATIONS LLC IN (Lumen) >> +14632027899 -LEVEL 3 COMMUNICATIONS LLC IN (Lumen) >> +14632030946 - METROPCS INC (T-Mobile US) >> >> Kinda hard to believe the big boys haven't caught this abuse of their >> network yet. >> >> I tried reporting the numbers to bandwidth.com (as ID'd by telcodata.us), >> but their form only allows for a single entry at a time, and it says most >> of the numbers don't belong to them. Either their form is broken or >> telcodata.us is out of date. >> >> I can't find a reporting for Level3/Lumen. They seem to be geared >> towards "I'm a customer and need help figuring out the star code to block >> calls". >> >> -A >> _______________________________________________ >> VoiceOps mailing list -- [email protected] >> https://lists.voiceops.org/postorius/lists/voiceops.voiceops.org/ >> To unsubscribe send an email to [email protected] >> >> >>
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