Phone numbers in Holly Oak, Delaware
Holly Oak has 23 phone prefixes in area code 302.
Biggest holders: Verizon (local phone), Windstream (PAETEC), MCImetro (Verizon Business). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 4%
- Local phone company 30%
- Internet / business phone carrier 61%
- Phone company 4%
Every prefix in Holly Oak
Search the first six digits of a number in this list. If it's here, the number started in Holly Oak with the carrier shown. If it isn't, check the Delaware page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 302-246 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 302-281 | MetroPCS (T-Mobile) | Mobile carrier | 2011 |
| 302-308 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 302-334 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 302-371 | MCImetro (Verizon Business) | Internet / business phone carrier | 2004 |
| 302-374 | MCImetro (Verizon Business) | Internet / business phone carrier | 2004 |
| 302-375 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 302-385 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 302-408 | MCImetro (Verizon Business) | Internet / business phone carrier | 2010 |
| 302-417 | Onvoy | Internet / business phone carrier | – |
| 302-418 | Coretel Delaware | Phone company | – |
| 302-439 | Teleport Communications America | Internet / business phone carrier | 2001 |
| 302-475 | Verizon (local phone) | Local phone company | – |
| 302-506 | Onvoy | Internet / business phone carrier | 2023 |
| 302-529 | Verizon (local phone) | Local phone company | – |
| 302-615 | Bandwidth | Internet / business phone carrier | 2022 |
| 302-746 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 302-791 | Verizon (local phone) | Local phone company | – |
| 302-792 | Verizon (local phone) | Local phone company | – |
| 302-793 | Verizon (local phone) | Local phone company | – |
| 302-797 | Verizon (local phone) | Local phone company | – |
| 302-798 | Verizon (local phone) | Local phone company | – |
| 302-826 | Teleport Communications America | Internet / business phone carrier | – |
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.