929 postboxes in the CB postcode area
| CB1 (115) | CB2 (87) | CB3 (107) | CB4 (94) | CB5 (56) | CB6 (77) | CB7 (61) | CB8 (109) | CB9 (61) |
| CB10 (53) | CB11 (60) | CB22 (19) | CB23 (11) | CB24 (17) | CB25 (2) |
Map boundaries are based on data from freethepostcode.org and npemap.org.uk.
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