The following sample regular expressions are for MRA Routes.
- For E164 numbers ending in 00 to 24: #E164:1234.*?(?:0\d|1\d|2[0-4])
- For E164 numbers ending in 25 to 49: #E164:1234.*?(?:2[5-9]|3\d|4\d)
- For E164 numbers ending in 50 to 74: #E164:1234.*?(?:5\d|6\d|7[0-4])
- For E164 numbers ending in 75 to 99: #E164:1234.*?(?:7[5-9]|8\d|9\d)