U.S. telecoms regulators are leaning toward rejecting a T-Mobile US Inc (TMUS.N) request that more airwaves be set aside for smaller wireless companies like itself to bid on during a government auction next year, according to people familiar with the matter. Such a decision, which could be finalized in coming weeks, would end months of speculation and vigorous lobbying by the nation’s No. 4 cellular operator, which wants the Federal Communications Commission to further limit how much spectrum dominant U.S. carriers Verizon Communications Inc (VZ.N) and AT&T Inc (T.N) can buy in the auction.