Maryland, United States
Eastern Time
1:00 AM
Area Code
227
State / Province
Maryland
Country
United States
Time Zone
Eastern Time
Area code 227 covers 27 cities and communities across Maryland, based on telephone company rate center data.
Use the E.164 format for clickable phone links (RFC 3966):
<a href="tel:+12275550100">+12275550100</a><a href="tel:+12275550199">+12275550199</a>Look up which exchange in Maryland a specific 227 number is homed to, and whether its block is wireline or wireless. See what a reverse lookup can establish before relying on the answer.
135 active prefixes in this area code, assigned as 1,268 thousands-blocks — pooling splits one prefix across several carriers, so each block is listed separately with the rate centre it is homed to, its carrier of record, and the switch that serves it.
Showing blocks 1–100 of 1,268
| NPA-NXX | Block | Rate centre | Type | Carrier (OCN) | Switch | LATA | LIR | Dates |
|---|---|---|---|---|---|---|---|---|
| 227-200 | 0 | Washington Zone 2 | Landline or VoIP | TELEPORT COMMUNICATIONS AMERICA, LLC - DC (7529) | OCQNVAXAVMD | 236 | — | — |
| 227-200 | 1 | Washington Zone 2 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-200 | 2 | Washington Zone 2 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-200 | 3 | Washington Zone 2 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-200 | 4 | Washington Zone 2 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-200 | 5 | Washington Zone 2 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-200 | 6 | Washington Zone 2 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-200 | 7 | Washington Zone 2 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-200 | 8 | Washington Zone 2 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-200 | 9 | Washington Zone 2 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-200 | A | Washington Zone 2 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-201 | 0 | Myersville | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MNRVMDMOXFX | 240 | — | — |
| 227-201 | 1 | Myersville | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MNRVMDMOXFX | 240 | — | — |
| 227-201 | 2 | Myersville | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MNRVMDMOXFX | 240 | — | — |
| 227-201 | 3 | Myersville | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MNRVMDMOXFX | 240 | — | — |
| 227-201 | 4 | Myersville | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MNRVMDMOXFX | 240 | — | — |
| 227-201 | 5 | Myersville | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MNRVMDMOXFX | 240 | — | — |
| 227-201 | 6 | Myersville | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MNRVMDMOXFX | 240 | — | — |
| 227-201 | 7 | Myersville | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MNRVMDMOXFX | 240 | — | — |
| 227-201 | 8 | Myersville | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MNRVMDMOXFX | 240 | — | — |
| 227-201 | 9 | Myersville | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MNRVMDMOXFX | 240 | — | — |
| 227-201 | A | Myersville | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | MNRVMDMOXFX | 240 | — | — |
| 227-202 | 0 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-202 | 1 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-202 | 2 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-202 | 3 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-202 | 4 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-202 | 5 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-202 | 6 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-202 | 7 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-202 | 8 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-202 | 9 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-202 | A | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-203 | 0 | Frederick | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (6395) | FRDRMDFRXSX | 240 | — | — |
| 227-203 | 1 | Frederick | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (7228) | FRDRMDFRX7X | 240 | — | — |
| 227-203 | 2 | Frederick | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (7228) | FRDRMDFRX7X | 240 | — | — |
| 227-203 | 3 | Frederick | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (7228) | FRDRMDFRX7X | 240 | — | — |
| 227-203 | 4 | Frederick | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (6395) | FRDRMDFRXSX | 240 | — | — |
| 227-203 | 5 | Frederick | Landline or VoIP | TELNYX LLC (073H) | CMLDMDCMUMD | 240 | — | — |
| 227-203 | 6 | Frederick | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (6395) | FRDRMDFRXSX | 240 | — | — |
| 227-203 | 7 | Frederick | Landline or VoIP | ONVOY, LLC - MD (876D) | CMLDMDCMEMD | 240 | — | — |
| 227-203 | 8 | Frederick | Wireless | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD (6395) | FRDRMDFRXSX | 240 | — | — |
| 227-203 | 9 | Frederick | Landline or VoIP | PEERLESS NETWORK OF MARYLAND, LLC (568G) | HAGERSTOWN | 240 | — | — |
| 227-203 | A | Frederick | Landline or VoIP | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD (7228) | FRDRMDFRX7X | 240 | — | — |
| 227-204 | 0 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-204 | 1 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-204 | 2 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-204 | 3 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-204 | 4 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-204 | 5 | Washington Zone 10 | Wireless | NEW CINGULAR WIRELESS PCS, LLC - DC (4036) | CHCHMDBEWMD | 236 | — | — |
| 227-204 | 6 | Washington Zone 10 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 227-204 | 7 | Washington Zone 10 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 227-204 | 8 | Washington Zone 10 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 227-204 | 9 | Washington Zone 10 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 227-204 | A | Washington Zone 10 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 227-205 | 0 | Washington Zone 4 | Landline or VoIP | ONVOY, LLC - MD (876D) | TYSONS CORNER | 236 | — | — |
| 227-205 | 1 | Washington Zone 4 | Landline or VoIP | ONVOY, LLC - MD (876D) | TYSONS CORNER | 236 | — | — |
| 227-205 | 2 | Washington Zone 4 | Landline or VoIP | ONVOY, LLC - MD (876D) | TYSONS CORNER | 236 | — | — |
| 227-205 | 3 | Washington Zone 4 | Landline or VoIP | COMMIO, LLC (939H) | SLSPMD913MD | 236 | — | — |
| 227-205 | 4 | Washington Zone 4 | Landline or VoIP | COMMIO, LLC (939H) | SLSPMD913MD | 236 | — | — |
| 227-205 | 5 | Washington Zone 4 | Landline or VoIP | COMMIO, LLC (939H) | SLSPMD913MD | 236 | — | — |
| 227-205 | 6 | Washington Zone 4 | Landline or VoIP | COMMIO, LLC (939H) | SLSPMD913MD | 236 | — | — |
| 227-205 | 7 | Washington Zone 4 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 227-205 | 8 | Washington Zone 4 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 227-205 | 9 | Washington Zone 4 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 227-205 | A | Washington Zone 4 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 227-206 | 0 | Washington Zone 5 | Landline or VoIP | COMMIO, LLC (939H) | SLSPMD913MD | 236 | — | — |
| 227-206 | 1 | Washington Zone 5 | Landline or VoIP | COMMIO, LLC (939H) | SLSPMD913MD | 236 | — | — |
| 227-206 | 2 | Washington Zone 5 | Landline or VoIP | COMMIO, LLC (939H) | SLSPMD913MD | 236 | — | — |
| 227-206 | 3 | Washington Zone 5 | Landline or VoIP | COMMIO, LLC (939H) | SLSPMD913MD | 236 | — | — |
| 227-206 | 4 | Washington Zone 5 | Landline or VoIP | ONVOY, LLC - MD (876D) | TYSONS CORNER | 236 | — | — |
| 227-206 | 5 | Washington Zone 5 | Landline or VoIP | ONVOY, LLC - MD (876D) | TYSONS CORNER | 236 | — | — |
| 227-206 | 6 | Washington Zone 5 | Landline or VoIP | ONVOY, LLC - MD (876D) | TYSONS CORNER | 236 | — | — |
| 227-206 | 7 | Washington Zone 5 | Landline or VoIP | ONVOY, LLC - MD (876D) | TYSONS CORNER | 236 | — | — |
| 227-206 | 8 | Washington Zone 5 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 227-206 | 9 | Washington Zone 5 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 227-206 | A | Washington Zone 5 | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | BELTSVILLE | 236 | — | — |
| 227-207 | 0 | Bittinger | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-207 | 1 | Bittinger | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-207 | 2 | Bittinger | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-207 | 3 | Bittinger | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-207 | 4 | Bittinger | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-207 | 7 | Bittinger | Landline or VoIP | OPENTACT INC. (824J) | — | 240 | — | — |
| 227-207 | A | Bittinger | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-208 | 0 | Flintstone | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-208 | 1 | Flintstone | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-208 | 2 | Flintstone | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-208 | 3 | Flintstone | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-208 | 4 | Flintstone | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-208 | A | Flintstone | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-209 | 0 | Grantsville | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-209 | 1 | Grantsville | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-209 | 2 | Grantsville | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-209 | 3 | Grantsville | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-209 | 4 | Grantsville | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-209 | 5 | Grantsville | Wireless | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (6855) | FRDRMDFRKMD | 240 | — | — |
| 227-209 | A | Grantsville | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-210 | 0 | McCoole | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-210 | 1 | McCoole | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
| 227-210 | 2 | McCoole | Landline or VoIP | COMMIO, LLC (939H) | HGTWMD539MD | 240 | — | — |
Block-level assignments from the North American Numbering Plan administrator, via localcallingguide.com.
Assigned Prefixes
135
Assignment Blocks
1,268
Rate Centers
38
Carriers of Record
22
| Type | Blocks | Share |
|---|---|---|
| Landline or VoIP | 510 | 40% |
| Wireless | 758 | 60% |
| Carrier | Blocks |
|---|---|
| NEW CINGULAR WIRELESS PCS, LLC - DC | 429 |
| ONVOY, LLC - MD | 324 |
| OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 151 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 113 |
| BANDWIDTH.COM CLEC, LLC - MD | 60 |
| COMMIO, LLC | 52 |
| ONVOY SPECTRUM, LLC | 43 |
| BOOST SUBSCRIBERCO L.L.C. | 22 |
| HD CARRIER LLC | 10 |
| WIDE VOICE, LLC - MD | 10 |
| 12 other carriers | 54 |
Carrier of record for each block. Numbers ported to another carrier keep their original block assignment, so this is not a lookup of who serves a given number today.
| Rate Center | Prefixes | Blocks |
|---|---|---|
| Washington Zone 10 | 21 | 221 |
| Myersville | 13 | 134 |
| Washington Zone 2 | 13 | 138 |
| Frederick | 8 | 81 |
| Laurel | 8 | 88 |
| Ashton | 7 | 66 |
| Gaithersburg | 6 | 63 |
| Waldorf | 6 | 62 |
| Washington Zone 4 | 6 | 64 |
| Washington Zone 5 | 6 | 59 |
| Hagerstown | 3 | 26 |
| Washington Zone 11 | 3 | 24 |
| Washington Zone 14 | 3 | 32 |
| Washington Zone 3 | 3 | 28 |
| Leonardtown | 2 | 19 |
| Washington Zone 13 | 2 | 17 |
| Washington Zone 15 (Baltimore LATA) | 2 | 16 |
| Washington Zone 16 | 2 | 19 |
| Washington Zone 6 | 2 | 22 |
| Ashton (Baltimore LATA) | 1 | 6 |
| Bittinger | 1 | 7 |
| Brunswick | 1 | 2 |
| Cumberland | 1 | 7 |
| Flintstone | 1 | 6 |
| Friendsville | 1 | 3 |
| Grantsville | 1 | 7 |
| Hughesville | 1 | 3 |
| Keedysville | 1 | 5 |
| McCoole | 1 | 6 |
| Mechanicsville | 1 | 4 |
| Middletown | 1 | 2 |
| Mount Airy | 1 | 2 |
| Oakland | 1 | 5 |
| Ridge | 1 | 3 |
| Smithsburg | 1 | 6 |
| Thurmont | 1 | 2 |
| Washington Zone 12 | 1 | 7 |
| Westernport | 1 | 6 |
A rate center is the telephone exchange area a number is homed to. It sets local calling boundaries, and is not the caller's current location.
Area code 227 is a North American Numbering Plan (NANP) telephone area code assigned to Maryland, United States. It is one of 6 area codes serving Maryland. As population and demand for phone numbers grew, the region was divided into multiple numbering plan areas to avoid exhausting the available 7-digit number pool.
Yes. 227 is an active North American Numbering Plan (NANP) area code, currently assigned to Maryland, United States. It is safe to answer or dial calls using this area code.
Area code 227 covers 27 cities and communities in Maryland, including Ashton, Ashton (baltimore Lata), Bittinger, Brunswick, Cumberland, and 22 more localities. This is based on telephone company rate center data — the geographic areas carriers use to determine local calling boundaries and to assign numbers when a business or individual requests a phone number in a specific city.
All numbers in the 227 area code observe Eastern Time (IANA timezone: America/New_York). Eastern Time is UTC−5 in winter (EST) and UTC−4 in summer (EDT). When placing a call to a 227 number from a different time zone, check the current local time above to avoid calling outside of business hours.
From within Maryland, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 227 + 7-digit number for long-distance calls within North America. From outside the US or Canada, dial your country's international exit code followed by 1 227 XXX XXXX. The country code for both the United States and Canada in NANP is +1.
Format 227 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +12275550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.