NPA	NXX	CLLI	City, ST	Telco
512	303	BSTRTXBSDS0	BASTROP	SOUTHWESTERN BELL
512	304	BSTRTXBSDS0	BASTROP	SOUTHWESTERN BELL
512	308	BSTRTXBSDS0	BASTROP	SOUTHWESTERN BELL
512	321	BSTRTXBSDS0	BASTROP	SOUTHWESTERN BELL
512	332	BSTRTXBSDS0	BASTROP	SOUTHWESTERN BELL
512	581	BSTRTXBSDS0	BASTROP	SOUTHWESTERN BELL