only a little bit, older prefixes like in 206-xxx and 360-xxx that are assigned to legacy copper POTS ILEC carriers (like Centurylink for big parts of the seattle area, or Ziply for the suburbs) are more likely to be fixed landline phones and not ported out somewhere else.
prefixes that are assigned to a carrier like tmobile or that were a metropcs prefix before its full integration into tmobile are highly likely to be cellphones, though people can of course port away their number to a voip service or something, but more often they would just move to verizon or att.
prefixes that are assigned to a carrier like tmobile or that were a metropcs prefix before its full integration into tmobile are highly likely to be cellphones, though people can of course port away their number to a voip service or something, but more often they would just move to verizon or att.