it looks like it says IPB with a vertical 98 followed by XA900.
IPB stands for Independant Pigeon Breeders. The brand is sold through Foy’s Pigeon Supply. www.foyspigeonsupplies.com
98 is either the hatch year or the banding year, depending upon whether or not the band is a solid ring of metal.
XA is the alphabetical sequence.
900 is the individual serial number.
That is at least a 15 year old bird. Bands are mass produced by year and sold by the tens of thousands at least.
Any number under 1000 is an early hatch unless they come from a very small aviary.