| Exchange |
Rate Center |
State |
Operating Company |
| 410-900 |
BALTIMORE |
MD |
CTC COMMUNICATIONS - MD |
| 410-901 |
CAMBRIDGE |
MD |
VERIZON MARYLAND, INC. |
| 410-902 |
PIKESVILLE |
MD |
VERIZON MARYLAND, INC. |
| 410-903 |
SEVERNA PK |
MD |
SPRINT SPECTRUM L.P. |
| 410-904 |
WATERLO238 |
MD |
MCIMETRO, ATS, INC. |
| 410-905 |
BALTIMORE |
MD |
SPRINT SPECTRUM L.P. |
| 410-906 |
BALTIMORE |
MD |
VERIZON MARYLAND, INC. |
| 410-907 |
WOODLAWN |
MD |
MCIMETRO, ATS, INC. |
| 410-908 |
BALTIMORE |
MD |
SPRINT SPECTRUM L.P. |
| 410-909 |
ELKRIDGE |
MD |
ARCH WIRELESS HOLDINGS, INC. |
| 410-910 |
COLUMBIA |
MD |
MCIMETRO, ATS, INC. |
| 410-911 |
|
MD |
|
| 410-912 |
SALISBURY |
MD |
CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD |
| 410-913 |
BALTIMORE |
MD |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
| 410-914 |
CHURCHVL |
MD |
CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD |
| 410-915 |
BALTIMORE |
MD |
BALTIMORE-WASHINGTON TELEPHONE BWT |
| 410-916 |
BALTIMORE |
MD |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
| 410-917 |
CATONSVL |
MD |
NEW CINGULAR WIRELESS PCS, LLC - DC |
| 410-918 |
ESSEX |
MD |
VERIZON MARYLAND, INC. |
| 410-919 |
ANNAPOLIS |
MD |
MCIMETRO, ATS, INC. |
| 410-920 |
ELKTON |
MD |
NEW CINGULAR WIRELESS PCS, LLC - PA |
| 410-921 |
SEVERN |
MD |
XSPEDIUS MANAGEMENT CO SWITCHES SERVICES, LLC - MD |
| 410-922 |
RANDALLSTN |
MD |
VERIZON MARYLAND, INC. |
| 410-923 |
MILLERSVL |
MD |
VERIZON MARYLAND, INC. |
| 410-924 |
EASTON |
MD |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
| 410-925 |
BALTIMORE |
MD |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
| 410-926 |
CATONSVL |
MD |
NEW CINGULAR WIRELESS PCS, LLC - DC |
| 410-927 |
ODENTON |
MD |
XSPEDIUS MANAGEMENT CO SWITCHES SERVICES, LLC - MD |
| 410-928 |
MILLINGTON |
MD |
VERIZON MARYLAND, INC. |
| 410-929 |
BALTIMORE |
MD |
BANDWIDTH.COM CLEC, LLC - MD |
| 410-930 |
WATERLO236 |
MD |
REDI-CALL COMMUNICATIONS CO |
| 410-931 |
PARKVILLE |
MD |
VERIZON MARYLAND, INC. |
| 410-932 |
ELKRIDGE |
MD |
ARCH WIRELESS HOLDINGS, INC. |
| 410-933 |
PARKVILLE |
MD |
VERIZON MARYLAND, INC. |
| 410-934 |
WATERLO236 |
MD |
VERIZON MARYLAND, INC. |
| 410-935 |
BALTIMORE |
MD |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
| 410-936 |
BALTIMORE |
MD |
VERIZON MARYLAND, INC. |
| 410-937 |
FALLSTON |
MD |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
| 410-938 |
TOWSON |
MD |
VERIZON MARYLAND, INC. |
| 410-939 |
HAVREGRACE |
MD |
VERIZON MARYLAND, INC. |
| 410-940 |
ANNAPOLIS |
MD |
ATX TELECOMMUNICATIONS SERVICES, LTD |
| 410-941 |
JARRETTSVL |
MD |
VERIZON MARYLAND, INC. |
| 410-942 |
HAVREGRACE |
MD |
VERIZON MARYLAND, INC. |
| 410-943 |
HURLOCK |
MD |
VERIZON MARYLAND, INC. |
| 410-944 |
WOODLAWN |
MD |
VERIZON MARYLAND, INC. |
| 410-945 |
BALTIMORE |
MD |
VERIZON MARYLAND, INC. |
| 410-946 |
SEVERNA PK |
MD |
VERIZON MARYLAND, INC. |
| 410-947 |
BALTIMORE |
MD |
VERIZON MARYLAND, INC. |
| 410-948 |
CATONSVL |
MD |
NEW CINGULAR WIRELESS PCS, LLC - DC |
| 410-949 |
BALTIMORE |
MD |
MCIMETRO, ATS, INC. |
| 410-950 |
|
MD |
|
| 410-951 |
BALTIMORE |
MD |
TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD |
| 410-952 |
BALTIMORE |
MD |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
| 410-953 |
COLUMBIA |
MD |
VERIZON MARYLAND, INC. |
| 410-954 |
BALTIMORE |
MD |
VERIZON MARYLAND, INC. |
| 410-955 |
BALTIMORE |
MD |
VERIZON MARYLAND, INC. |
| 410-956 |
ANNAPOLIS |
MD |
VERIZON MARYLAND, INC. |
| 410-957 |
POCOMOKE |
MD |
VERIZON MARYLAND, INC. |
| 410-958 |
|
MD |
|
| 410-959 |
|
MD |
|
| 410-960 |
BALTIMORE |
MD |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
| 410-961 |
BALTIMORE |
MD |
SPRINT SPECTRUM L.P. |
| 410-962 |
BALTIMORE |
MD |
VERIZON MARYLAND, INC. |
| 410-963 |
BALTIMORE |
MD |
SPRINT SPECTRUM L.P. |
| 410-964 |
COLUMBIA |
MD |
VERIZON MARYLAND, INC. |
| 410-965 |
WOODLAWN |
MD |
VERIZON MARYLAND, INC. |
| 410-966 |
WOODLAWN |
MD |
VERIZON MARYLAND, INC. |
| 410-967 |
TOWSON |
MD |
NEW CINGULAR WIRELESS PCS, LLC - DC |
| 410-968 |
CRISFIELD |
MD |
VERIZON MARYLAND, INC. |
| 410-969 |
SEVERN |
MD |
VERIZON MARYLAND, INC. |
| 410-970 |
SYKESVILLE |
MD |
MCIMETRO, ATS, INC. |
| 410-971 |
CATONSVL |
MD |
NEW CINGULAR WIRELESS PCS, LLC - DC |
| 410-972 |
ANNAPOLIS |
MD |
TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD |
| 410-973 |
BALTIMORE |
MD |
AQUIS COMMUNICATIONS, INC. |
| 410-974 |
SEVERNA PK |
MD |
VERIZON MARYLAND, INC. |
| 410-975 |
SEVERNA PK |
MD |
VERIZON MARYLAND, INC. |
| 410-976 |
BALTIMORE |
MD |
BALTIMORE-WASHINGTON TELEPHONE BWT |
| 410-977 |
BALTIMORE |
MD |
NEXTEL COMMUNICATIONS, INC. |
| 410-978 |
CATONSVL |
MD |
NEW CINGULAR WIRELESS PCS, LLC - DC |
| 410-979 |
CATONSVL |
MD |
NEW CINGULAR WIRELESS PCS, LLC - DC |
| 410-980 |
ANNAPOLIS |
MD |
GLOBAL NAPS SOUTH, INC. - MD |
| 410-981 |
GLENBURNIE |
MD |
VERIZON MARYLAND, INC. |
| 410-982 |
BALTIMORE |
MD |
QUANTUM TELECOMMUNICATIONS, INC. - MD |
| 410-983 |
FORK |
MD |
VERIZON MARYLAND, INC. |
| 410-984 |
SYKESVILLE |
MD |
NEXTEL COMMUNICATIONS, INC. |
| 410-985 |
WATERLO236 |
MD |
BALTIMORE-WASHINGTON TELEPHONE BWT |
| 410-986 |
BALTIMORE |
MD |
VERIZON MARYLAND, INC. |
| 410-987 |
SEVERN |
MD |
VERIZON MARYLAND, INC. |
| 410-988 |
ELLICOTTCY |
MD |
VERIZON MARYLAND, INC. |
| 410-989 |
FORK |
MD |
VERIZON MARYLAND, INC. |
| 410-990 |
ANNAPOLIS |
MD |
VERIZON MARYLAND, INC. |
| 410-991 |
ANNAPOLIS |
MD |
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD |
| 410-992 |
COLUMBIA |
MD |
VERIZON MARYLAND, INC. |
| 410-993 |
GLENBURNIE |
MD |
VERIZON MARYLAND, INC. |
| 410-994 |
EDGEWOOD |
MD |
VERIZON MARYLAND, INC. |
| 410-995 |
ELLICOTTCY |
MD |
VERIZON MARYLAND, INC. |
| 410-996 |
ELKTON |
MD |
VERIZON MARYLAND, INC. |
| 410-997 |
COLUMBIA |
MD |
VERIZON MARYLAND, INC. |
| 410-998 |
PIKESVILLE |
MD |
VERIZON MARYLAND, INC. |
| 410-999 |
GLENBURNIE |
MD |
BALTIMORE-WASHINGTON TELEPHONE BWT |
