Phone numbers in Allentown, New Jersey
Allentown has 35 phone prefixes in area codes 609, 640.
Biggest holders: AT&T Mobility, T-Mobile (including Sprint), Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 60%
- Local phone company 9%
- Internet / business phone carrier 31%
Every prefix in Allentown
Search the first six digits of a number in this list. If it's here, the number started in Allentown with the carrier shown. If it isn't, check the New Jersey page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 609-201 | Onvoy | Internet / business phone carrier | 2016 |
| 609-208 | Verizon (local phone) | Local phone company | – |
| 609-210 | AT&T Mobility | Mobile carrier | 2020 |
| 609-215 | Onvoy | Internet / business phone carrier | 2023 |
| 609-223 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 609-259 | Verizon (local phone) | Local phone company | – |
| 609-325 | AT&T Mobility | Mobile carrier | 2001 |
| 609-357 | Level 3 (Lumen) | Internet / business phone carrier | 2001 |
| 609-373 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 609-401 | T-Mobile (including Sprint) | Mobile carrier | 2013 |
| 609-529 | AT&T Mobility | Mobile carrier | – |
| 609-539 | Cablevision Lightpath | Internet / business phone carrier | 2010 |
| 609-582 | AT&T Mobility | Mobile carrier | 2014 |
| 609-591 | AT&T Mobility | Mobile carrier | 2015 |
| 609-592 | T-Mobile (including Sprint) | Mobile carrier | 2014 |
| 609-629 | Onvoy | Internet / business phone carrier | 2021 |
| 609-648 | AT&T Mobility | Mobile carrier | 2020 |
| 609-663 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 609-686 | T-Mobile (including Sprint) | Mobile carrier | 2016 |
| 609-772 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 609-787 | AT&T Mobility | Mobile carrier | 2014 |
| 609-809 | Onvoy | Internet / business phone carrier | 2024 |
| 609-856 | AT&T Mobility | Mobile carrier | 2023 |
| 609-903 | AT&T Mobility | Mobile carrier | – |
| 609-906 | AT&T Mobility | Mobile carrier | – |
| 609-907 | AT&T Mobility | Mobile carrier | 2013 |
| 609-934 | Telnyx | Internet / business phone carrier | 2017 |
| 609-973 | AT&T (local phone) | Local phone company | 2020 |
| 609-988 | AT&T Mobility | Mobile carrier | 2023 |
| 640-228 | AT&T Mobility | Mobile carrier | 2022 |
| 640-240 | AT&T Mobility | Mobile carrier | 2022 |
| 640-242 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 640-302 | AT&T Mobility | Mobile carrier | 2026 |
| 640-305 | AT&T Mobility | Mobile carrier | 2026 |
| 640-777 | Terra Nova Telecom | Internet / business phone carrier | 2019 |
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.