Typically, the TracFone's should be avoided because they are not UNLOCKED. I use a TracFone here in the USA and both of mine are 1100b and they are LOCKED...bad both ways: LOCKED and WRONG freq.
Check out the first wikpedia link to better understand:
http://en.wikipedia.org/wiki/Nokia_1100
Ebay search Nokia 1100 and look for the frequency....the Hong Kong one's are refurb units......message the seller and ask is it 1100a or 1100b....it's right under where there battery goes.....they won't tell you it's an a or b from my work.....but the freq.. they list is generally good and their phones are always unlocked and generally in the right freq. coverage........
that 1100 phone IS built like a tank......it will take dang near anything you can throw at it....it just has to be the proper freq. AND UNLOCKED
So, again, do a search on Ebay for Nokia 1100 and looked for the unlocked units and look for the freq coverage AND be certain to ask ahead of time....ask the seller to check under the battery......the US sold one's are generally the 1100b's and the imports are the one's "we" want....the 1100a's.......but the Hong Kong boys are dopes and won't pull the battery.....mostly because they're just boiler rooms.....go with the freq. they're listing.......
With the news of the pay to play opening up in CR, I'm taking several Hong Kong purchased units with me to sell.......
PS: Here is a CURRENT ebay auction (seller is in Hong Kong) for the right unit:
http://cgi.ebay.com/NOKIA-1100-MOBILE-P ... 286.c0.m14
However, I would send the seller a message and ask him to confirm if it is a 1100a or 1100b. Typically, they don't know because they're middle man types and don't have one to look at....the freq they are listing is generally correct....but they're in Hong Kong and you're here....ok...so you "BUY ONE NOW" and pull the battery and find it is a "b" model.....*shrug*.....contest charge and forge ahead......but I tell 'ya....these 1100's are built like tanks......