Minecraft wiki entry for Zombified_Piglin, associated text: A hostile zombified piglin can also "sound an alarm", spreading the aggro to all zombified piglins within a 67×22×67 to 111×22×111 area ‌[JE only] or 20-block‌[BE only] radius. A hostile Zombified piglin does this whenever the targeted player is within their follow range (33 to 55 blocks) and has a constant line-of-sight with its target, then it does the same every 4-6 seconds (80-120 game ticks), recruiting any formerly-neutral peers. They pursue players even if they have the Invisibility effect.