Postal Code Rules Notice
The postal code corresponding to the current page (e.g., NN1) is an Outward Code prefix. To ensure system building efficiency and proper page loading, the system aggregates and displays all detailed, complete postal codes in this region. You can find more precise 6 or 7-character complete postal codes below (format: SW1A 1AA), corresponding to specific streets, residential buildings, commercial offices, or specific delivery points.
UK Postal Code Structure and Rules:
1. First Part (Outward Code / Outward Postcode):
2 to 4 characters in length (e.g. SW1A, M1). Represents the Postal Area and the District under the postal area. Composed of 1-2 letters plus 1-2 digits (or alphanumeric combination), used to route mail to the correct UK sorting center.
2. Second Part (Inward Code / Inward Postcode):
Fixed at 3 characters (e.g. 1AA). Represents the specific postal sector (Sector) and the specific delivery point unit (Unit). The first digit is fixed as 0-9, and the last two are letters (C, I, K, M, O, V are not used to avoid confusion). Precise down to a street or specific building.
Postal code NN1 belongs to the jurisdiction of Northampton, Northampton, Northamptonshire, United Kingdom. This page contains complete postal details, delivery branch information, and random phone number generation tools for this code.
Detailed ZIP Code Geography
The following postal codes are indexed for this geographical region.
| Postcode | NN1 |
|---|---|
| District / Neighborhood | Northampton (Northampton) |
| City | Northampton (Northampton) |
| Province / State | Northamptonshire (Northamptonshire) |
| Country | United Kingdom (GB) |
| Dialing Area Codes | 1604 |
Complete Postal Codes in this Area
Below is a detailed list of all complete postal codes included in this area:
NN1 5DB
NN1 5DE
NN1 5DF
NN1 5DG
NN1 5DH
NN1 5DQ
NN1 5DR
NN1 5DT
NN1 5DY
NN1 5EA
NN1 5EB
NN1 5ED
NN1 5EE
NN1 5EH
NN1 5EJ
NN1 5EL
NN1 5EN
NN1 5EP
NN1 5EQ
NN1 5ER
NN1 5ES
NN1 5ET
NN1 5EU
NN1 5EW
NN1 5EX
NN1 5EY
NN1 5FJ
NN1 5FQ
NN1 5FX
NN1 5HA
NN1 5HB
NN1 5HD
NN1 5HE
NN1 5HL
NN1 5HN
NN1 5HP
NN1 5HQ
NN1 5HR
NN1 5HS
NN1 5HU
NN1 5HX
NN1 5JA
NN1 5JB
NN1 5JD
NN1 5JE
NN1 5JF
NN1 5JH
NN1 5JJ
NN1 5JL
NN1 5JN
NN1 5JP
NN1 5JQ
NN1 5JR
NN1 5JS
NN1 5JU
NN1 5JW
NN1 5JX
NN1 5JY
NN1 5JZ
NN1 5LJ
NN1 5LL
NN1 5LN
NN1 5LP
NN1 5LR
NN1 5LS
NN1 5LT
NN1 5LU
NN1 5LW
NN1 5LX
NN1 5LY
NN1 5LZ
NN1 5NA
NN1 5NB
NN1 5ND
NN1 5NE
NN1 5NG
NN1 5NJ
NN1 5NQ
NN1 5NT
NN1 5NX
NN1 5PA
NN1 5PD
NN1 5PN
NN1 5PT
NN1 5PU
NN1 5QG
NN1 5QH
NN1 5QJ
NN1 5QL
NN1 5QP
NN1 5QR
NN1 5QS
NN1 5QT
NN1 5QY
NN1 5QZ
NN1 5RA
NN1 5RL
NN1 5RN
NN1 5RR
NN1 5RS
NN1 5RT
NN1 5RU
NN1 5RW
NN1 5RX
NN1 5RY
NN1 5RZ
NN1 5SA
NN1 5SB
NN1 4ED
NN1 4EE
NN1 4EF
NN1 4EH
NN1 4EJ
NN1 4EN
NN1 4EP
NN1 4EQ
NN1 4ER
NN1 4ES
NN1 4ET
NN1 4EU
NN1 4EW
NN1 4EX
NN1 4EY
NN1 4EZ
NN1 4HG
NN1 4HJ
NN1 4HL
NN1 4HN
NN1 4HP
NN1 4HQ
NN1 5SD
NN1 5SE
NN1 5SF
NN1 5SG
NN1 5SH
NN1 5SJ
NN1 5SL
NN1 5SN
NN1 5SP
NN1 5SQ
NN1 5SR
NN1 5SS
NN1 5ST
NN1 5SU
NN1 5SY
NN1 5SZ
NN1 5WU
NN1 5YA
NN1 5YT
NN1 5ZB
NN1 9AA
NN1 9AG
NN1 9AH
NN1 9BF
NN1 9DA
NN1 9DT
NN1 9DX
NN1 9DZ
NN1 9SA
NN1 9SB
NN1 4HR
NN1 4HS
NN1 4HU
NN1 4HW
NN1 4HX
NN1 4HZ
NN1 4JA
NN1 4JB
NN1 4JD
NN1 4JE
NN1 4JF
NN1 4JG
NN1 4JH
NN1 4JJ
NN1 4JL
NN1 4JN
NN1 4JP
NN1 4JQ
NN1 4JR
NN1 4JS
NN1 4JT
NN1 4JU
NN1 4JW
NN1 4JX
NN1 4LA
NN1 4LB
NN1 4LD
NN1 4LE
NN1 4LF
NN1 4LG
NN1 4LH
NN1 4LJ
NN1 4LL
NN1 4LN
NN1 4LP
NN1 4LQ
NN1 4LR
NN1 4LS
NN1 4LT
NN1 4LU
NN1 4LW
NN1 4LX
NN1 4LY
NN1 4LZ
NN1 4NA
NN1 4NB
NN1 4ND
NN1 4NE
NN1 4NF
NN1 4NG
NN1 4NH
NN1 4NJ
NN1 4NL
NN1 4NN
NN1 4NP
NN1 4NQ
NN1 4NS
NN1 4NU
NN1 4NW
NN1 4NY
NN1 4NZ
NN1 4PA
NN1 4PB
NN1 4PD
NN1 4PE
NN1 4PF
NN1 4PG
NN1 4PH
NN1 4PJ
NN1 4PL
NN1 4PP
NN1 4PQ
NN1 4PR
NN1 4PT
NN1 4PU
NN1 4PW
NN1 4PX
NN1 4QA
NN1 4QB
NN1 4QD
NN1 4QL
NN1 4QN
NN1 4QP
NN1 4QR
NN1 4QS
NN1 4QT
NN1 4QU
NN1 4QW
NN1 4QX
NN1 4QY
NN1 4QZ
NN1 4RA
NN1 4RB
NN1 4RD
NN1 4RE
NN1 4RF
NN1 4RG
NN1 4RH
NN1 4RJ
NN1 4RL
NN1 2SL
NN1 2SN
NN1 2SQ
NN1 2SR
NN1 2SS
NN1 2SX
NN1 2TA
NN1 2TE
NN1 2TN
NN1 2TP
NN1 2TR
NN1 2TU
NN1 2TW
NN1 2TX
NN1 2TY
NN1 2UG
NN1 2WP
NN1 2WS
NN1 2YA
NN1 2YG
NN1 2ZB
NN1 2ZF
NN1 2ZR
NN1 2ZY
NN1 3AE
NN1 4RN
NN1 4RQ
NN1 4RR
NN1 4RS
NN1 4RW
NN1 4RX
NN1 4RY
NN1 4RZ
NN1 4SA
NN1 4SB
NN1 4SD
NN1 4SF
NN1 4SG
NN1 4SH
NN1 4SJ
NN1 4SL
NN1 4SN
NN1 4SP
NN1 4SQ
NN1 4SR
NN1 4SS
NN1 4ST
NN1 4SU
NN1 4SW
NN1 4SX
NN1 4SY
NN1 4TG
NN1 4TH
NN1 4TJ
NN1 4TL
NN1 4TQ
NN1 4WL
NN1 4XR
NN1 4XS
NN1 4YG
NN1 4YR
NN1 4YS
NN1 4YW
NN1 4ZQ
NN1 4ZR
NN1 5AA
NN1 5AE
NN1 5AJ
NN1 5AL
NN1 5AN
NN1 5AQ
NN1 5AT
NN1 5AW
NN1 5AZ
NN1 5BA
NN1 5BB
NN1 5BD
NN1 5BE
NN1 5BF
NN1 5BG
NN1 5BH
NN1 5BJ
NN1 5BL
NN1 5BN
NN1 5BP
NN1 5BT
NN1 5BU
NN1 5BW
NN1 5BX
NN1 5BY
NN1 5BZ
NN1 5DA
NN1 3AH
NN1 3AS
NN1 3AU
NN1 3AX
NN1 3BA
NN1 3BE
NN1 3BG
NN1 3BH
NN1 3BJ
NN1 3BL
NN1 3BP
NN1 3BQ
NN1 3BU
NN1 3BW
NN1 3DA
NN1 3DE
NN1 3DF
NN1 3DJ
NN1 3DN
NN1 3DS
NN1 3DX
NN1 3DY
NN1 3DZ
NN1 3EA
NN1 3EB
NN1 3EE
NN1 3EL
NN1 3EN
NN1 3EP
NN1 3ER
NN1 3ES
NN1 3ET
NN1 3EU
NN1 3EW
NN1 3EX
NN1 3EY
NN1 3EZ
NN1 3FB
NN1 3HB
NN1 3HD
NN1 3HE
NN1 3HH
NN1 3HQ
NN1 3HS
NN1 3HW
NN1 3JA
NN1 3JD
NN1 3JE
NN1 3JF
NN1 3JG
NN1 3JH
NN1 3JL
NN1 3JQ
NN1 3JS
NN1 3JT
NN1 3JU
NN1 3JW
NN1 3JX
NN1 3JY
NN1 3LB
NN1 3LD
NN1 3LE
NN1 3LF
NN1 3LG
NN1 3LH
NN1 3LJ
NN1 3LL
NN1 3LN
NN1 3LP
NN1 3LQ
NN1 3LR
NN1 3LS
NN1 3LT
NN1 3LW
NN1 3LZ
NN1 3NA
NN1 3NB
NN1 3ND
NN1 3NE
NN1 3NL
NN1 3NR
NN1 3PU
NN1 3PX
NN1 3PZ
NN1 3QA
NN1 3QB
NN1 3QD
NN1 3QE
NN1 3QF
NN1 3QG
NN1 3QJ
NN1 3QL
NN1 1PA
NN1 1PB
NN1 1PD
NN1 1PF
NN1 1PJ
NN1 1PP
NN1 1PR
NN1 1PS
NN1 1PT
NN1 1PU
NN1 1PY
NN1 1PZ
NN1 1QA
NN1 1QD
NN1 1QE
NN1 1QF
NN1 1QG
NN1 1QH
NN1 1QJ
NN1 1QS
NN1 1QT
NN1 1QU
NN1 1QW
NN1 1QX
NN1 1QY
NN1 1QZ
NN1 1RA
NN1 1RB
NN1 1RD
NN1 1RF
NN1 1RG
NN1 1RH
NN1 1RJ
NN1 1RL
NN1 1RN
NN1 1RP
NN1 3QN
NN1 3QP
NN1 3QQ
NN1 3QR
NN1 3QS
NN1 3QT
NN1 3QU
NN1 3QW
NN1 3RE
NN1 3RF
NN1 3RJ
NN1 3RL
NN1 3RN
NN1 3RP
NN1 3RQ
NN1 3RR
NN1 3RS
NN1 3YN
NN1 3YS
NN1 3ZQ
NN1 4AA
NN1 4AE
NN1 4AF
NN1 4AH
NN1 4AJ
NN1 4AP
NN1 4AQ
NN1 4AT
NN1 4AU
NN1 4AW
NN1 4AZ
NN1 4BB
NN1 4BD
NN1 4BE
NN1 4BG
NN1 4BH
NN1 4BJ
NN1 4BL
NN1 4BN
NN1 4BP
NN1 4BS
NN1 4BU
NN1 4BW
NN1 4BX
NN1 4BY
NN1 4BZ
NN1 4DG
NN1 4DH
NN1 4DJ
NN1 4DL
NN1 4DN
NN1 4DP
NN1 4DQ
NN1 4DR
NN1 4DT
NN1 4DU
NN1 4DW
NN1 4DX
NN1 4DZ
NN1 4EA
NN1 4EB
NN1 1RQ
NN1 1RR
NN1 1RS
NN1 1SA
NN1 1SH
NN1 1SN
NN1 1SP
NN1 1SR
NN1 1ST
NN1 1SW
NN1 1SX
NN1 1SY
NN1 1TA
NN1 1TB
NN1 1TH
NN1 1TP
NN1 1TU
NN1 1TY
NN1 1UB
NN1 1UD
NN1 1UE
NN1 1UG
NN1 1UH
NN1 1US
NN1 1XP
NN1 1XY
NN1 1YG
NN1 1YT
NN1 1ZE
NN1 1ZP
NN1 2AA
NN1 2AB
NN1 2AJ
NN1 2AN
NN1 2AP
NN1 2AQ
NN1 2AW
NN1 2BA
NN1 2BB
NN1 2BG
NN1 2BH
NN1 2BN
NN1 2BP
NN1 2BQ
NN1 2BT
NN1 2BY
NN1 2DA
NN1 2DF
NN1 2DL
NN1 2DN
NN1 2DP
NN1 2DW
NN1 2EA
NN1 2EB
NN1 2ED
NN1 2EG
NN1 2EL
NN1 2ET
NN1 2EU
NN1 2EW
NN1 2EY
NN1 2EZ
NN1 2FH
NN1 2FJ
NN1 2HA
NN1 2HB
NN1 2HD
NN1 2HG
NN1 2HH
NN1 2HL
NN1 2HN
NN1 2HQ
NN1 2HS
NN1 2HY
NN1 2JA
NN1 2JB
NN1 2JD
NN1 2JF
NN1 2JG
NN1 2JH
NN1 2JJ
NN1 2JL
NN1 2JQ
NN1 2JR
NN1 2JW
NN1 2JY
NN1 2JZ
NN1 2LA
NN1 2LF
NN1 2LG
NN1 2LH
NN1 2LL
NN1 2LT
NN1 2LU
NN1 2LX
NN1 2LY
NN1 2LZ
NN1 2NE
NN1 2NQ
NN1 2NT
NN1 2NW
NN1 2NX
NN1 2NZ
NN1 2PA
NN1 2PB
NN1 2PD
NN1 2PE
NN1 2PF
NN1 2PG
NN1 2PH
NN1 2PJ
NN1 2PN
NN1 2PQ
NN1 2PS
NN1 2PT
NN1 2PY
NN1 2QE
NN1 2QF
NN1 2QL
NN1 2QP
NN1 2QW
NN1 2QZ
NN1 2RE
NN1 2RG
NN1 2RH
NN1 2RJ
NN1 2RL
NN1 2RN
NN1 2RQ
NN1 2RS
NN1 2RT
NN1 2RU
NN1 2RW
NN1 2RX
NN1 2RY
NN1 2RZ
NN1 2SA
NN1 2SB
NN1 2SD
NN1 2SE
NN1 2SF
NN1 2SG
NN1 2SH
NN1 2SJ
NN1 1AA
NN1 1AF
NN1 1AG
NN1 1AJ
NN1 1AL
NN1 1AP
NN1 1AR
NN1 1AU
NN1 1AW
NN1 1AY
NN1 1BH
NN1 1BJ
NN1 1BL
NN1 1BN
NN1 1BQ
NN1 1BW
NN1 1BX
NN1 1DA
NN1 1DD
NN1 1DE
NN1 1DF
NN1 1DJ
NN1 1DN
NN1 1DP
NN1 1DQ
NN1 1DR
NN1 1DT
NN1 1EA
NN1 1ED
NN1 1EE
NN1 1EL
NN1 1EN
NN1 1EP
NN1 1EQ
NN1 1ER
NN1 1ES
NN1 1ET
NN1 1EW
NN1 1EX
NN1 1EY
NN1 1EZ
NN1 1FB
NN1 1HA
NN1 1HB
NN1 1HF
NN1 1HH
NN1 1HJ
NN1 1HL
NN1 1HS
NN1 1HW
NN1 1JA
NN1 1JB
NN1 1JF
NN1 1JS
NN1 1JT
NN1 1JW
NN1 1JX
NN1 1LD
NN1 1LG
NN1 1LN
NN1 1LP
NN1 1LW
NN1 1LX
NN1 1LZ
NN1 1NH
NN1 1NN
NN1 1NR
NN1 1NS
NN1 1NT
NN1 1NW
NN1 1DH
NN1 1FA
NN1 1LJ
NN1 1LQ
NN1 1TZ
NN1 1UJ
NN1 2AS
NN1 2AT
NN1 2AX
NN1 2LB
NN1 3BN
NN1 3HX
NN1 5AR
NN1 5AU
NN1 5DD
NN1 5EG
NN1 5FY
NN1 5NH
NN1 5NL
NN1 5NN
NN1 5NS
NN1 9BY
NN1 9BZ
NN1 9EE
NN1 9EF
NN1 9EG
NN1 9EN
NN1 9ES
NN1 9ET
NN1 9EU
NN1 9EX
NN1 9EY
NN1 9EZ
NN1 9FA
NN1 9FB
NN1 9FD
NN1 9FE
NN1 9FF
NN1 9FG
NN1 9SD
NN1 9SE
NN1 9SF
NN1 9SG
NN1 9SH
NN1 9SJ
NN1 9SL
NN1 9SN
NN1 9SP
NN1 9SQ
NN1 2BU
NN1 2BW
NN1 2DD
NN1 2PR
NN1 5EF
NN1 4BF
NN1 9FJ
NN1 2BF
NN1 3QX
NN1 9FL
NN1 9FN
NN1 9FP
NN1 9FQ
NN1 9FR
NN1 9FS
NN1 9ZZ
Random Local Phone Numbers
Mock phone numbers matching local formatting and dialing area codes. (1604)
Frequently Asked Questions
What is the phone number format and dialing rules for this area (postal code NN1)?
Local phone numbers follow the dialing prefix rules. Numbers generated locally are 11 digits long and utilize regional area codes: 1604.
Local Dialing: Within the same area, dial the standard subscriber number directly without country prefix.
International Dialing: To dial internationally, prepend the country dial code followed by the local area code and number.
Local Dialing: Within the same area, dial the standard subscriber number directly without country prefix.
International Dialing: To dial internationally, prepend the country dial code followed by the local area code and number.
What can the random phone numbers generated here be used for?
They are simulated data designed specifically for software development testing, QA automation workflows, form input validation (e.g., formatting mobile/landline numbers), and international compliance mock databases. Simulated phones cannot make or receive calls, nor can they receive SMS verification codes.
How to check the specific jurisdiction or branch associated with postal code NN1?
Our website lists specific communities and delivery branch details (if any) in the details section. You can also double-check accuracy via the official query portals provided by the official postal reference sources below (such as China Post or US USPS) to ensure data is absolutely precise.
Data Verification & Reference Sources
The following official postal authorities can be used to verify the accuracy of the postal code data on this page: