Local Calling Guide
Area code/prefix search
St Michaels, MD
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 410-745
| A |
STMCMDSMRS0 |
9212 VERIZON MARYLAND, INC. |
242 |
|
|
|
| 410-745
| 0 |
STMCMDSMRS0 |
9212 VERIZON MARYLAND, INC. |
242 |
|
|
|
| 410-745
| 1 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
242 |
|
2004-04-03 |
|
| 410-745
| 2 |
STMCMDSMRS0 |
9212 VERIZON MARYLAND, INC. |
242 |
|
|
|
| 410-745
| 3 |
STMCMDSMRS0 |
9212 VERIZON MARYLAND, INC. |
242 |
|
|
|
| 410-745
| 4 |
STMCMDSMRS0 |
9212 VERIZON MARYLAND, INC. |
242 |
|
|
|
| 410-745
| 5 |
STMCMDSMRS0 |
9212 VERIZON MARYLAND, INC. |
242 |
|
|
|
| 410-745
| 6 |
STMCMDSMRS0 |
9212 VERIZON MARYLAND, INC. |
242 |
|
|
|
| 410-745
| 7 |
SLBRMDSBXUX |
7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD |
242 |
|
2012-07-13 |
|
| 410-745
| 8 |
ESTNMDESMMD |
228C IDT AMERICA, CORP. - MD |
242 |
|
2006-05-21 |
|
| 410-745
| 9 |
STMCMDSMRS0 |
9212 VERIZON MARYLAND, INC. |
242 |
|
|
|
| 667-226
| A |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
|
|
| 667-226
| 0 |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2017-05-11 |
|
| 667-226
| 1 |
SLBRMD902MD |
073H TELNYX LLC |
242 |
|
2017-09-13 |
|
| 667-226
| 2 |
|
829J PAETEC ITEL, LLC |
242 |
|
2018-01-08 |
|
| 667-226
| 3 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
242 |
|
2018-06-17 |
|
| 667-226
| 4 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
242 |
|
2018-06-17 |
|
| 667-226
| 5 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
242 |
|
2018-06-17 |
|
| 667-226
| 6 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
242 |
|
2019-03-29 |
|
| 667-226
| 7 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
242 |
|
2019-03-29 |
|
| 667-226
| 8 |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2019-02-26 |
|
| 667-226
| 9 |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2019-02-26 |
|
| 667-767
| A |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
|
|
| 667-767
| 0 |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2021-05-18 |
|
| 667-767
| 1 |
SLBRMDSBX0X |
624H ONVOY SPECTRUM, LLC |
242 |
|
2022-03-14 |
|
| 667-767
| 2 |
SLBRMDSBX0X |
624H ONVOY SPECTRUM, LLC |
242 |
|
2021-05-27 |
|
| 667-767
| 3 |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2021-09-25 |
|
| 667-767
| 4 |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2021-05-21 |
|
| 667-767
| 5 |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2021-05-21 |
|
| 667-767
| 6 |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2021-05-17 |
|
| 667-767
| 7 |
SLBRMDSBWMD |
073H TELNYX LLC |
242 |
|
2023-05-19 |
|
| 667-767
| 8 |
SLBRMDSBXVX |
876D ONVOY, LLC - MD |
242 |
|
2021-05-18 |
|
| 667-767
| 9 |
SLBRMDSBXFX |
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
242 |
|
2022-11-18 |
|
Last updated: Thu, 16 Oct 2025 03:04:18 UTC
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