Phone numbers in Amsterdam, New York
Amsterdam has 18 phone prefixes in area codes 518, 838.
Biggest holders: Windstream (PAETEC), Verizon (local phone), Level 3 (Lumen). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 6%
- Local phone company 28%
- Internet / business phone carrier 56%
- Phone company 11%
Every prefix in Amsterdam
Search the first six digits of a number in this list. If it's here, the number started in Amsterdam with the carrier shown. If it isn't, check the New York page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 518-212 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 518-246 | Tc Systems | Phone company | – |
| 518-394 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 518-620 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 518-627 | Verizon (local phone) | Local phone company | – |
| 518-684 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 518-770 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 518-839 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 518-841 | Verizon (local phone) | Local phone company | – |
| 518-842 | Verizon (local phone) | Local phone company | – |
| 518-843 | Verizon (local phone) | Local phone company | – |
| 518-866 | T-Mobile (including Sprint) | Mobile carrier | 2002 |
| 518-876 | Firstlight Fiber | Internet / business phone carrier | – |
| 518-954 | AT&T (local phone) | Local phone company | – |
| 838-214 | Right Call | Phone company | 2019 |
| 838-259 | Commio | Internet / business phone carrier | 2022 |
| 838-306 | Onvoy | Internet / business phone carrier | 2026 |
| 838-383 | Onvoy | Internet / business phone carrier | 2021 |
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.