Postal address
Old Knebworth, Hertfordshire
The postal code of Old Knebworth, in Hertfordshire (England, Reino Unido), is SG3. Include it in your shipments and forms.
Location
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Old Knebworth
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Frequently asked questions
What is the postal code of Old Knebworth?
The main postal code of Old Knebworth (Hertfordshire, Reino Unido) is SG3.