Phone numbers in Pikesville, Maryland
Pikesville has 64 phone prefixes in area codes 410, 443, 667.
Biggest holders: Verizon (local phone), AT&T Mobility, MCImetro (Verizon Business). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 31%
- Local phone company 28%
- Internet / business phone carrier 38%
- Phone company 3%
Every prefix in Pikesville
Search the first six digits of a number in this list. If it's here, the number started in Pikesville with the carrier shown. If it isn't, check the Maryland page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 410-205 | AT&T Mobility | Mobile carrier | – |
| 410-345 | Verizon (local phone) | Local phone company | – |
| 410-356 | Verizon (local phone) | Local phone company | – |
| 410-363 | Verizon (local phone) | Local phone company | – |
| 410-413 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 410-415 | Verizon (local phone) | Local phone company | – |
| 410-484 | Verizon (local phone) | Local phone company | – |
| 410-486 | Verizon (local phone) | Local phone company | – |
| 410-504 | Verizon (local phone) | Local phone company | – |
| 410-559 | Teleport Communications America | Internet / business phone carrier | – |
| 410-577 | Verizon (local phone) | Local phone company | 2005 |
| 410-580 | Verizon (local phone) | Local phone company | – |
| 410-581 | Verizon (local phone) | Local phone company | – |
| 410-602 | Verizon (local phone) | Local phone company | – |
| 410-653 | Verizon (local phone) | Local phone company | – |
| 410-654 | Verizon (local phone) | Local phone company | – |
| 410-753 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 410-902 | Verizon (local phone) | Local phone company | – |
| 410-998 | Verizon (local phone) | Local phone company | – |
| 443-204 | AT&T Mobility | Mobile carrier | 2003 |
| 443-213 | Verizon (local phone) | Local phone company | – |
| 443-264 | Core Communications | Internet / business phone carrier | – |
| 443-334 | MCImetro (Verizon Business) | Internet / business phone carrier | 2001 |
| 443-352 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 443-357 | Verizon (local phone) | Local phone company | – |
| 443-379 | Comcast | Internet / business phone carrier | 2007 |
| 443-394 | Verizon (local phone) | Local phone company | – |
| 443-450 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 443-471 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 443-501 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 443-544 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 443-548 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 443-641 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
| 443-660 | Comcast | Internet / business phone carrier | – |
| 443-738 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 443-796 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 443-870 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 443-898 | Level 3 (Lumen) | Internet / business phone carrier | 2005 |
| 443-929 | T-Mobile (including Sprint) | Mobile carrier | 2001 |
| 443-940 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 667-273 | Csc Wireless | Mobile carrier | 2019 |
| 667-305 | Nuso | Internet / business phone carrier | 2013 |
| 667-313 | MCImetro (Verizon Business) | Internet / business phone carrier | 2015 |
| 667-429 | AT&T Mobility | Mobile carrier | 2023 |
| 667-430 | AT&T Mobility | Mobile carrier | 2023 |
| 667-439 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 667-460 | AT&T Mobility | Mobile carrier | 2023 |
| 667-471 | AT&T Mobility | Mobile carrier | 2024 |
| 667-490 | AT&T Mobility | Mobile carrier | 2024 |
| 667-491 | AT&T Mobility | Mobile carrier | 2024 |
| 667-499 | AT&T Mobility | Mobile carrier | 2024 |
| 667-505 | AT&T Mobility | Mobile carrier | 2025 |
| 667-510 | AT&T Mobility | Mobile carrier | 2025 |
| 667-512 | AT&T Mobility | Mobile carrier | 2025 |
| 667-521 | AT&T Mobility | Mobile carrier | 2025 |
| 667-533 | Wavenation | Phone company | 2025 |
| 667-540 | AT&T Mobility | Mobile carrier | 2026 |
| 667-543 | AT&T Mobility | Mobile carrier | 2026 |
| 667-544 | AT&T Mobility | Mobile carrier | 2026 |
| 667-596 | AT&T Mobility | Mobile carrier | 2024 |
| 667-622 | TON80 Communications | Internet / business phone carrier | 2022 |
| 667-667 | Onvoy | Internet / business phone carrier | 2025 |
| 667-755 | Quantum Telecommunications | Phone company | 2021 |
| 667-877 | Commio | Internet / business phone carrier | 2022 |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.