what market maker is "L" in ameritrades thinkorswim level 2 quotes?

[elite1974]

what market maker is "L" in ameritrades thinkorswim level 2 quotes?

note: this FAQ seems quite out of date:
https://tlc.thinkorswim.com/center/howToTos/thinkManual/Miscellaneous/Exchange-Codes

 

[2rosy]

you mean exchange not market maker. long term stock exchange

 

[elite1974]

Thanks it is pretty new (2020), and I had never heard of it.
https://www.investopedia.com/long-term-stock-exchange-ltse-5077275

Which brokers or persons use this exchange regularly?

 

[ETJ]

"Which brokers or persons use this exchange regularly?"

It's gonna sound like a corny answer but everyone via NMS.