| 01450 Groton | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01463 East Pepperell | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01463 Pepperell | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01470 Groton | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01470 New England Business | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01471 Groton | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01471 New England Business Svc Inc | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01472 West Groton | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01821 Billerica | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01822 Billerica | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01824 Chelmsford | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01824 Kates Corner | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01824 South Chelmsford | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01826 Dracut | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01827 Dunstable | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01850 Lowell | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01851 Lowell | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01852 Lowell | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01853 Lowell | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01854 Lowell | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01862 Billerica | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01862 North Billerica | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01863 North Chelmsford | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01865 Nutting Lake | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01865 Nuttings Lake | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01866 Pinehurst | 781/339 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01876 Tewksbury | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01879 Tyngsboro | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01879 Tyngsborough | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01886 Westford | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01886 Nabnasset | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 01886 Forge Village | 978/351 | Middlesex County | Massachusetts - MA | Lowell, MA-NH (4560) | SMSA |
| 03076 Pelham | 603 | Hillsborough County | New Hampshire - NH | Lowell, MA-NH (4560) | SMSA |