[VoiceOps] FCC RMD Naughty List

[Nathan Anderson]

Actually, Mary has a good point here.  Sure, you along with everybody else may be utilizing Sinch/Level 3/etc. TNs, but that doesn't mean that you are *directly* peering with them.  Odds are extremely good you're using an intermediate wholesaler to get access to their services (e.g. a Flowroute/Twilio/Sangoma/Telnyx/Commio/etc.).  If you aren't a direct customer of Sinch, one can't social-engineer their way into an account that doesn't exist on Sinch's side in order to change your peering IP information for said nonexistent account, and it's impossible to tell from an LRN dip whether you are or are not a direct Sinch customer.

-- Nathan

-----Original Message-----
From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf Of Alex Balashov via VoiceOps
Sent: Wednesday, December 11, 2024 09:33
To: voiceops at voiceops.org
Subject: Re: [VoiceOps] FCC RMD Naughty List

I was just about to say: there's a small oligopoly of CLECs who supply the wholesale backend of the VoIP origination and termination industry, and disclosing that you, too, use them, along with literally everyone and anyone else, isn't really the intelligence bombshell it used to be.

> On Dec 11, 2024, at 12:30 pm, Dave Russo via VoiceOps <voiceops at voiceops.org> wrote:
> 
> I believe the concern about listing a company's upstream carriers is overstated. There simply aren’t as many carriers as there used to be, and businesses have consolidated who they terminate calls to due to S/S. This simply isn’t a commonly exploited attack vector. Even if someone tried, it would be noticed and addressed within a few hours. We work with a core set of about 10 carriers that legitimate providers and our competitors and other players in the market typically use, and this information isn’t top secret. I understand you've seen this happen, but of all the risks we face as providers, I'd rank this one at the bottom of the list.
> 
> -dr
> 
> 
> On Wed, Dec 11, 2024, at 10:11 AM, Mary Lou Carey via VoiceOps wrote:
>> I am so sorry....I just realized that I said to file the 499 confidentially. Its not the 499. Its your Robocall Mitigation Plan that you need to file confidentially because they ARE asking for upstream carriers and additional contact information. That requirement was added this year.
>> 
>> MARY LOU CAREY 
>> BackUP Telecom Consulting 
>> Office: 615-791-9969 
>> Cell: 615-796-1111
>> 
>> 
> 
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-- 
Alex Balashov
Principal Consultant
Evariste Systems LLC
Web: https://evaristesys.com
Tel: +1-706-510-6800

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