I normally carry two mobile phones, one for work and the other for personal and family use. I've been using my work phone for the hobby, but my c.o. has ready access to either phone, and as of late some provides have texted me with "special offers", so to avoid catastrophe I'm in need of adding a clandestine phone exclusively just for the hobby. Any recommendations on discrete cellphone services?

Anything will work.

Inexpensive $50 smart phone that does everything except apps. Sign up as Mr. xyz and pay as you go.

One I use while in this country, the other I use when traveling internationally.

Doesn't even have to go to your phone..  
You can do all your texting via computer.

Same here...except i don't travel. Also I'm not a U.S. senator.  
Just have the one phone.  Personal and P4P.
If i ever got outed it's not like it would ruin my life.  

If you have google gmail remember to delete all the texts cause google voice tracks all the texts.

Just download a phone/ text app that you can use with your CURRENT phone. Use the app which uses a Different # just for hobbying.
Talkatone is the one i use.

Stop using your work phone. Get an app for your personal phone that gives you a separate number, ring tone and texting capacity. Hushed is excellent.

Go to the retail stores pick up minute phone.

My US phone is with ATT, my international phone is with T-Mobile. When traveling internationally I would run well over a hundred bucks a day in roaming charges, even when using my phone judiciously. My T-Mobile phone costs me about a hundred bucks a month, no matter how much I use it. Unfortunately the T-Mobile phones gets crappy reception when in many places I have to go here in the US.

That some carriers include a detail text message history just like a call log. I had an instance once when a client who used his personal phone to text me, was confronted by his wife because the number popped up on his detailed phone bill. Needless to say he uses a burner now. U should as well. Burner burner burner.

I bought a 100 dollar prepaid verizon phone. I call to activate it with my provider name " satin masters" to an address that isn't real (dosn't matter because they don't send any bills). Unlimited talk/text and one gig of full speed data for 45/month which I pay by, buying a refill card with a pin # with cash once a month.

The only phone I have is a Tracfone.  I really don't use a phone much and don't feel the need to have data everywhere I go, so it is perfect for me.  Don't have a SA so hiding communication is not an issue.  

I bought a $20 phone & it costs $20 for each months of service.  So $100 for the first year.  If you Add service days befre they expire, unused minutes roll over.  If you don't you might lose your number & definately lose your unjused minutes.  
There are cheaper phones now.  I store my hobby phone cleared of numbers & shut of when not in use.  Find a good hiding place.  
Unless you own the company & have no one to answer to, don't use company equipment or wifi.  Company has the right to track all info on it's system & equipment.  People have been fired from 6 figure jobs over the hobby

1) A regular Verizon smartphone that I use for family and business.  I normally only carry this phone.
2) An international phone that I use mostly in Asia for work and hobby overseas, I keep it turned off and with nothing incriminating in its memory and safely in my safe when not overseas.
3) A basic Tracfone that I use for hobby and ONLY for hobby in the US.  I keep it locked in my safe when not needed that day. After use, I IMMEDIATELY delete all texts and all records of calls.  This phone cost something like $9 CASH at WalMart and I add minutes to it every three months, also purchased with cash.  The email account linked to this phone at Tracfone is an email account that I do not use for anything else -- not a real personal or business email address or my hobby email address. I add the minutes and time from a public WIFI (Panera or Starbucks) not connected to me.

tracphone is 100 a year for 400 minutes.  When you get the phone the first time, they double or in my case tripled the minutes. I use it so little as it's just for hobbying, I have something like 2000 minutes banked and yes they roll over.