I wouldn't use a retailer as a specific guide to what products are manufactured. I would contact Kodak or Fuji directly.
For some time, the only b.w 220 film was TXP. That was discontinued either last year or the year before.
But, that being said, I wouldn't be at all surprised if 220 film disappeared in short order. It'd be a real shame IMO, but I don't think it is long for this world based on what people I know and people on this Website seem to shoot. I think 220 is better than 120 in almost every way, personally, and I don't see why more people do not shoot it.