NPA
NXX
CLLI
City, ST
Telco
713
491
HSTNTXNEDS0
HOUSTON
SOUTHWESTERN BELL
713
631
HSTNTXNEDS0
HOUSTON
SOUTHWESTERN BELL
713
633
HSTNTXNEDS0
HOUSTON
SOUTHWESTERN BELL
713
635
HSTNTXNEDS0
HOUSTON
SOUTHWESTERN BELL
713
636
HSTNTXNEDS0
HOUSTON
SOUTHWESTERN BELL