Phone numbers in Elkridge, Maryland
Elkridge has 33 phone prefixes in area codes 410, 443, 667.
Biggest holders: Verizon (local phone), Spok, Windstream (PAETEC). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 18%
- Local phone company 30%
- Internet / business phone carrier 36%
- Paging service 15%
Every prefix in Elkridge
Search the first six digits of a number in this list. If it's here, the number started in Elkridge with the carrier shown. If it isn't, check the Maryland page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 410-220 | MetroPCS (T-Mobile) | Mobile carrier | 2011 |
| 410-300 | MetroPCS (T-Mobile) | Mobile carrier | 2004 |
| 410-331 | Spok | Paging service | – |
| 410-379 | Verizon (local phone) | Local phone company | – |
| 410-407 | Verizon (local phone) | Local phone company | – |
| 410-460 | Spok | Paging service | – |
| 410-471 | Verizon (local phone) | Local phone company | – |
| 410-503 | Verizon (local phone) | Local phone company | – |
| 410-540 | Verizon (local phone) | Local phone company | – |
| 410-564 | Teleport Communications America | Internet / business phone carrier | – |
| 410-567 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 410-579 | Verizon (local phone) | Local phone company | – |
| 410-660 | MetroPCS (T-Mobile) | Mobile carrier | 2006 |
| 410-678 | Spok | Paging service | – |
| 410-712 | Verizon (local phone) | Local phone company | – |
| 410-717 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 410-782 | Verizon (local phone) | Local phone company | – |
| 410-796 | Verizon (local phone) | Local phone company | – |
| 410-909 | Spok | Paging service | – |
| 410-932 | Spok | Paging service | – |
| 443-445 | Verizon (local phone) | Local phone company | – |
| 443-459 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 443-492 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 443-561 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 443-592 | Core Communications | Internet / business phone carrier | – |
| 443-757 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 443-776 | Bandwidth | Internet / business phone carrier | 2014 |
| 443-820 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 443-936 | AT&T Mobility | Mobile carrier | 2017 |
| 667-274 | AT&T Mobility | Mobile carrier | 2019 |
| 667-446 | TON80 Communications | Internet / business phone carrier | 2022 |
| 667-701 | AT&T Mobility | Mobile carrier | 2015 |
| 667-999 | Onvoy | Internet / business phone carrier | 2015 |
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.