NPA
NXX
CLLI
City, ST
Telco
410
257
NRBHMDNEDS0
NORTHBEACH
VERIZON MARYLAND INC.
410
286
NRBHMDNEDS0
NORTHBEACH
VERIZON MARYLAND INC.
443
237
BLTMMD91DS0
NORTHBEACH
CORE COMMUNICATIONS INC. - MD
443
550
ANNPMDANSMD
NORTHBEACH
SPRINT COMMUNICATIONS COMPANY L.P. - MD
443
646
BLTMMDDN4MD
NORTHBEACH
GLOBAL NAPS SOUTH INC. - MD