Local Calling Guide
Area code/prefix search
Flintstone, MD
| NPA-NXX |
BLOCK |
Switch |
OCN |
LATA |
LIR |
Eff date |
Disc date |
| 227-208
| A |
HGTWMD539MD |
939H COMMIO, LLC |
240 |
|
|
|
| 227-208
| 0 |
|
939H COMMIO, LLC |
240 |
|
2023-11-04 |
|
| 227-208
| 1 |
|
939H COMMIO, LLC |
240 |
|
2023-11-04 |
|
| 227-208
| 2 |
|
939H COMMIO, LLC |
240 |
|
2023-11-04 |
|
| 227-208
| 3 |
|
939H COMMIO, LLC |
240 |
|
2023-11-04 |
|
| 227-208
| 4 |
|
939H COMMIO, LLC |
240 |
|
2023-11-04 |
|
| 240-569
| A |
HGTWMDHGDMD |
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
|
|
| 240-569
| 0 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2017-11-24 |
|
| 240-569
| 1 |
|
073H TELNYX LLC |
240 |
|
2018-05-01 |
|
| 240-569
| 2 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2018-06-16 |
|
| 240-569
| 3 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2018-06-16 |
|
| 240-569
| 4 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2018-06-16 |
|
| 240-569
| 5 |
|
876D ONVOY, LLC - MD |
240 |
|
2020-01-06 |
|
| 240-569
| 6 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2019-07-31 |
|
| 240-569
| 7 |
|
6119 LEVEL 3 COMMUNICATIONS, LLC - MD |
240 |
|
2017-11-26 |
|
| 240-569
| 8 |
|
876D ONVOY, LLC - MD |
240 |
|
2020-01-06 |
|
| 240-569
| 9 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2019-07-31 |
|
| 240-995
| A |
CMLDMDCMEMD |
876D ONVOY, LLC - MD |
240 |
|
|
|
| 240-995
| 1 |
|
876D ONVOY, LLC - MD |
240 |
|
2020-07-09 |
|
| 240-995
| 2 |
|
516J TON80 COMMUNICATIONS, LLC |
240 |
|
2021-10-14 |
|
| 240-995
| 3 |
|
624H ONVOY SPECTRUM, LLC |
240 |
|
2022-01-21 |
|
| 240-995
| 5 |
|
876D ONVOY, LLC - MD |
240 |
|
2021-03-04 |
|
| 240-995
| 6 |
|
624H ONVOY SPECTRUM, LLC |
240 |
|
2022-01-21 |
|
| 240-995
| 7 |
|
624H ONVOY SPECTRUM, LLC |
240 |
|
2021-05-24 |
|
| 301-478
| A |
FLNTMDFSRS0 |
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
| 301-478
| 0 |
|
2593 CORE COMMUNICATIONS, INC.- MD |
240 |
|
2004-03-26 |
|
| 301-478
| 1 |
|
228C IDT AMERICA, CORP. - MD |
240 |
|
2006-03-10 |
|
| 301-478
| 2 |
|
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
| 301-478
| 3 |
|
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
| 301-478
| 4 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2012-08-24 |
|
| 301-478
| 5 |
|
9212 VERIZON MARYLAND, INC. |
240 |
|
|
|
| 301-478
| 6 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2015-03-01 |
|
| 301-478
| 7 |
|
071F BANDWIDTH.COM CLEC, LLC - MD |
240 |
|
2015-11-07 |
|
| 301-478
| 8 |
|
876D ONVOY, LLC - MD |
240 |
|
2016-09-12 |
|
| 301-478
| 9 |
|
876D ONVOY, LLC - MD |
240 |
|
2016-09-12 |
|
Last updated: Thu, 29 Jan 2026 14:35:03 UTC
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