Mark's response regarding the SHAKEN Identity header is the best suggestion.
These Google Business Listing calls are made by the millions, and they come from thousands of different ANIs. Chasing ANIs is hopeless. And even if you find and reach out to the source, they are unlikely to stand down. They already know virtually nobody wants their calls. Your best bet is to see who is signing the calls; it is most likely (but not guaranteed) that they are being signed by one or a few specific small providers specializing in these calls. You (on behalf of your customer(s)) can then elect to divert or block those calls. What is the specific message(s) your customers are hearing? We see these examples frequently, in addition to others: (recorded) Hi. It seems there is an issue with the keywords attached to your Google business listing. Your Google business listing has been flagged for review by the business listing specialist. To avoid any suspension or verification issues, please press 4 to speak to an authorized representative to take care of this. To address this immediately, press 4. This will only take a few minutes. To opt out, press 9 or call (959) 262-8948. (live) Hi. Am I speaking to the business owner? Hi, sir. This is Diana. Am I speaking to the business owner? Okay. That's great, sir. We are reaching out to you in reference to the Google Business profile for your company. Because upon checking here, sir, your Google Business listing has not been properly claimed or verified. This can cause your business to display incorrectly or, in some cases, not to display at all. Are you aware of this? Oh, okay, sir. Thank you. Have a From: Mark R Lindsey via VoiceOps <[email protected]> Sent: Wednesday, March 18, 2026 9:37 AM To: Aaron C. de Bruyn <[email protected]> Cc: [email protected] Subject: [VoiceOps] Re: Spamming for a week: 463-20X-XXXX 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 <http://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] <mailto:[email protected]> | LinkedIn <https://www.linkedin.com/in/markrlindsey/> On Mar 18, 2026, at 11:22, Aaron C. de Bruyn via VoiceOps <[email protected] <mailto:[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 <http://bandwidth.com/> (as ID'd by telcodata.us <http://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 <http://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] <mailto:[email protected]> https://lists.voiceops.org/postorius/lists/voiceops.voiceops.org/ To unsubscribe send an email to [email protected] <mailto:[email protected]>
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