This page contains information about which telephone companies the various 02309 numbers are allocated to.
| First Digits | Status | Number Length |
|---|---|---|
| 023 0900 | Free for National Dialling Only | (0)+10 |
| 023 0901 | Free for National Dialling Only | (0)+10 |
| 023 0902 | Free for National Dialling Only | (0)+10 |
| 023 0903 | Free for National Dialling Only | (0)+10 |
| 023 0904 | Free for National Dialling Only | (0)+10 |
| 023 0905 | Free for National Dialling Only | (0)+10 |
| 023 0906 | Free for National Dialling Only | (0)+10 |
| 023 0907 | Free for National Dialling Only | (0)+10 |
| 023 0908 | Free for National Dialling Only | (0)+10 |
| 023 0909 | Free for National Dialling Only | (0)+10 |
| 023 0910 | Free for National Dialling Only | (0)+10 |
| 023 0911 | Free for National Dialling Only | (0)+10 |
| 023 0912 | Free for National Dialling Only | (0)+10 |
| 023 0913 | Free for National Dialling Only | (0)+10 |
| 023 0914 | Free for National Dialling Only | (0)+10 |
| 023 0915 | Free for National Dialling Only | (0)+10 |
| 023 0916 | Free for National Dialling Only | (0)+10 |
| 023 0917 | Free for National Dialling Only | (0)+10 |
| 023 0918 | Free for National Dialling Only | (0)+10 |
| 023 0919 | Free for National Dialling Only | (0)+10 |
| 023 0920 | Free for National Dialling Only | (0)+10 |
| 023 0921 | Free for National Dialling Only | (0)+10 |
| 023 0922 | Free for National Dialling Only | (0)+10 |
| 023 0923 | Free for National Dialling Only | (0)+10 |
| 023 0924 | Free for National Dialling Only | (0)+10 |
| 023 0925 | Free for National Dialling Only | (0)+10 |
| 023 0926 | Free for National Dialling Only | (0)+10 |
| 023 0927 | Free for National Dialling Only | (0)+10 |
| 023 0928 | Free for National Dialling Only | (0)+10 |
| 023 0929 | Free for National Dialling Only | (0)+10 |
| 023 0930 | Free for National Dialling Only | (0)+10 |
| 023 0931 | Free for National Dialling Only | (0)+10 |
| 023 0932 | Free for National Dialling Only | (0)+10 |
| 023 0933 | Free for National Dialling Only | (0)+10 |
| 023 0934 | Free for National Dialling Only | (0)+10 |
| 023 0935 | Free for National Dialling Only | (0)+10 |
| 023 0936 | Free for National Dialling Only | (0)+10 |
| 023 0937 | Free for National Dialling Only | (0)+10 |
| 023 0938 | Free for National Dialling Only | (0)+10 |
| 023 0939 | Free for National Dialling Only | (0)+10 |
| 023 0940 | Free for National Dialling Only | (0)+10 |
| 023 0941 | Free for National Dialling Only | (0)+10 |
| 023 0942 | Free for National Dialling Only | (0)+10 |
| 023 0943 | Free for National Dialling Only | (0)+10 |
| 023 0944 | Free for National Dialling Only | (0)+10 |
| 023 0945 | Free for National Dialling Only | (0)+10 |
| 023 0946 | Free for National Dialling Only | (0)+10 |
| 023 0947 | Free for National Dialling Only | (0)+10 |
| 023 0948 | Free for National Dialling Only | (0)+10 |
| 023 0949 | Free for National Dialling Only | (0)+10 |
| 023 0950 | Free for National Dialling Only | (0)+10 |
| 023 0951 | Free for National Dialling Only | (0)+10 |
| 023 0952 | Free for National Dialling Only | (0)+10 |
| 023 0953 | Free for National Dialling Only | (0)+10 |
| 023 0954 | Free for National Dialling Only | (0)+10 |
| 023 0955 | Free for National Dialling Only | (0)+10 |
| 023 0956 | Free for National Dialling Only | (0)+10 |
| 023 0957 | Free for National Dialling Only | (0)+10 |
| 023 0958 | Free for National Dialling Only | (0)+10 |
| 023 0959 | Free for National Dialling Only | (0)+10 |
| 023 0960 | Free for National Dialling Only | (0)+10 |
| 023 0961 | Free for National Dialling Only | (0)+10 |
| 023 0962 | Free for National Dialling Only | (0)+10 |
| 023 0963 | Free for National Dialling Only | (0)+10 |
| 023 0964 | Free for National Dialling Only | (0)+10 |
| 023 0965 | Free for National Dialling Only | (0)+10 |
| 023 0966 | Free for National Dialling Only | (0)+10 |
| 023 0967 | Free for National Dialling Only | (0)+10 |
| 023 0968 | Free for National Dialling Only | (0)+10 |
| 023 0969 | Free for National Dialling Only | (0)+10 |
| 023 0970 | Free for National Dialling Only | (0)+10 |
| 023 0971 | Free for National Dialling Only | (0)+10 |
| 023 0972 | Free for National Dialling Only | (0)+10 |
| 023 0973 | Free for National Dialling Only | (0)+10 |
| 023 0974 | Free for National Dialling Only | (0)+10 |
| 023 0975 | Free for National Dialling Only | (0)+10 |
| 023 0976 | Free for National Dialling Only | (0)+10 |
| 023 0977 | Free for National Dialling Only | (0)+10 |
| 023 0978 | Free for National Dialling Only | (0)+10 |
| 023 0979 | Free for National Dialling Only | (0)+10 |
| 023 0980 | Free for National Dialling Only | (0)+10 |
| 023 0981 | Free for National Dialling Only | (0)+10 |
| 023 0982 | Free for National Dialling Only | (0)+10 |
| 023 0983 | Free for National Dialling Only | (0)+10 |
| 023 0984 | Free for National Dialling Only | (0)+10 |
| 023 0985 | Free for National Dialling Only | (0)+10 |
| 023 0986 | Free for National Dialling Only | (0)+10 |
| 023 0987 | Free for National Dialling Only | (0)+10 |
| 023 0988 | Free for National Dialling Only | (0)+10 |
| 023 0989 | Free for National Dialling Only | (0)+10 |
| 023 0990 | Free for National Dialling Only | (0)+10 |
| 023 0991 | Free for National Dialling Only | (0)+10 |
| 023 0992 | Free for National Dialling Only | (0)+10 |
| 023 0993 | Free for National Dialling Only | (0)+10 |
| 023 0994 | Free for National Dialling Only | (0)+10 |
| 023 0995 | Free for National Dialling Only | (0)+10 |
| 023 0996 | Free for National Dialling Only | (0)+10 |
| 023 0997 | Free for National Dialling Only | (0)+10 |
| 023 0998 | Free for National Dialling Only | (0)+10 |
| 023 0999 | Free for National Dialling Only | (0)+10 |