| Area Code: 519 | ||||
|---|---|---|---|---|
| SL No. | City | State | Country | Postal Code |
| 1971 | Guelph | Ontario | Canada | N1E 3B3 |
| 1972 | Guelph | Ontario | Canada | N1E 3B4 |
| 1973 | Guelph | Ontario | Canada | N1E 3B5 |
| 1974 | Guelph | Ontario | Canada | N1E 3B6 |
| 1975 | Guelph | Ontario | Canada | N1E 3B7 |
| 1976 | Guelph | Ontario | Canada | N1E 3B8 |
| 1977 | Guelph | Ontario | Canada | N1E 3B9 |
| 1978 | Guelph | Ontario | Canada | N1E 3C1 |
| 1979 | Guelph | Ontario | Canada | N1E 3C2 |
| 1980 | Guelph | Ontario | Canada | N1E 3C3 |