** Shares of wireless carrier AT&T fall as much as 5.5%, hitting their lowest since March 2003
** Brokerage J.P. Morgan cuts PT to $17 from $22 and downgrades stock rating to "neutral" from "overweight"
** PT cut by brokerage still represents an upside of 12.4% to stock's last close price of $15.12
** Co faces marginally more pressure in its mobility segment from rivals Verizon, T-Mobile US - J.P.Morgan
** AT&T also faces pressure in consumer wireline segment from cable and fixed wireless access - brokerage
** "We worry that the repeated downward revisions for its key wireless and fiber growth businesses, the high interest rate environment, and new uncertainty regarding lead sheathed cables will limit any substantial rebound," says J.P. Morgan
** Avg. estimate of 29 analysts covering the stock is "hold"; their median PT is $20 - Refinitiv
** Up to last close, stock had fallen ~18% YTD (Reporting by Jaspreet Singh in Bengaluru)