CO1 · Colchester

CO1 broadband and area guide

Ofcom coverage, connection speeds, house prices and local data for 514 postcodes across 3 sectors in Colchester.

Full fibre

Gigabit

68%

Superfast

89%

Postcodes

514

CO1 is Colchester's central postcode district, with gigabit reaching just 68.4% of 514 postcodes. Aerial infrastructure plays an unusually prominent role here, covering 33.3% of the area.

Broadband speeds in CO1

Share of CO1 premises by the fastest download speed available, averaged across all 514 postcodes in the district.

Gigabit availability dips to 68.4%, indicating a more mixed infrastructure than outer Braintree districts: approximately 351 postcodes with 300+ Mbps capability. Cable networks and alternative technologies split the coverage picture significantly. Superfast spreads across 88.7%, meaning approximately 59 postcodes lack 30 Mbps minimum. The speed split is more balanced than high-coverage areas: 68.4% achieve 300+ Mbps, while 20.3% occupy the middle 30 to 300 Mbps band (104 postcodes). No postcodes fall below 10 Mbps, a marked strength for urban Colchester. The 33.3% figure for alternative infrastructure indicates systematic deployment filling gaps where cable is absent or uneconomical across the city centre.

Under 2 Mbps

2 to 5 Mbps

5 to 10 Mbps

10 to 30 Mbps

11%

30 to 300 Mbps

20%

300 Mbps and above

68%

Source: Ofcom Connected Nations. Percentages are district-wide averages of postcode-level availability, so rows may not sum to exactly 100%.

Connectivity in detail

Below 10 Mbps USO

Premises unable to get the 10 Mbps universal service minimum

Fixed wireless

33%

Premises that can use a fixed wireless access service

Broadband by sector

CO1 splits into 3 postcode sectors. Coverage and prices can differ street by street, so open a sector below to find your exact postcode.

Sector	Postcodes	Superfast	Full fibre	Gigabit
CO1 1	225	77%	0%	53%
CO1 2	288	98%	0%	80%
CO1 9	1	100%	TBC	100%

All CO1 1 postcodes (225)

CO1 1AA CO1 1AG CO1 1AH CO1 1AJ CO1 1AN CO1 1AP CO1 1AQ CO1 1AT CO1 1AU CO1 1AW CO1 1AZ CO1 1BE CO1 1BG CO1 1BQ CO1 1BT CO1 1BX CO1 1BY CO1 1BZ CO1 1DA CO1 1DB CO1 1DF CO1 1DG CO1 1DH CO1 1DJ CO1 1DL CO1 1DN CO1 1DQ CO1 1DS CO1 1DU CO1 1DX CO1 1DZ CO1 1EA CO1 1ED CO1 1EE CO1 1EG CO1 1EH CO1 1EJ CO1 1EL CO1 1EN CO1 1EQ CO1 1ES CO1 1EU CO1 1EW CO1 1EY CO1 1EZ CO1 1FA CO1 1FB CO1 1FF CO1 1FQ CO1 1FW CO1 1GD CO1 1GJ CO1 1GP CO1 1GQ CO1 1GX CO1 1GY CO1 1HA CO1 1HB CO1 1HD CO1 1HE CO1 1HF CO1 1HG CO1 1HJ CO1 1HL CO1 1HN CO1 1HP CO1 1HQ CO1 1HR CO1 1HS CO1 1HU CO1 1HW CO1 1HZ CO1 1JB CO1 1JG CO1 1JH CO1 1JJ CO1 1JN CO1 1JQ CO1 1JR CO1 1JT CO1 1JW CO1 1JX CO1 1JZ CO1 1LB CO1 1LD CO1 1LE CO1 1LF CO1 1LG CO1 1LH CO1 1LJ CO1 1LN CO1 1LQ CO1 1LS CO1 1LU CO1 1LX CO1 1LY CO1 1NF CO1 1NG CO1 1NH CO1 1NJ CO1 1NN CO1 1NP CO1 1NQ CO1 1NS CO1 1NT CO1 1NU CO1 1NX CO1 1NY CO1 1NZ CO1 1PA CO1 1PB CO1 1PE CO1 1PG CO1 1PN CO1 1PR CO1 1PT CO1 1PW CO1 1PX CO1 1PY CO1 1QD CO1 1QE CO1 1QF CO1 1QG CO1 1QH CO1 1QJ CO1 1QP CO1 1QR CO1 1QS CO1 1QT CO1 1QW CO1 1QX CO1 1RA CO1 1RB CO1 1RD CO1 1RE CO1 1RH CO1 1RL CO1 1RN CO1 1RP CO1 1RQ CO1 1RR CO1 1RS CO1 1RT CO1 1RU CO1 1RX CO1 1RY CO1 1RZ CO1 1SA CO1 1SB CO1 1SE CO1 1SF CO1 1SG CO1 1SH CO1 1SJ CO1 1SN CO1 1SP CO1 1SQ CO1 1SR CO1 1SS CO1 1ST CO1 1SU CO1 1SZ CO1 1TB CO1 1TD CO1 1TG CO1 1TH CO1 1TL CO1 1TN CO1 1TP CO1 1TS CO1 1TT CO1 1TW CO1 1TY CO1 1UA CO1 1UB CO1 1UD CO1 1UE CO1 1UF CO1 1UG CO1 1UL CO1 1UN CO1 1UP CO1 1UR CO1 1US CO1 1UT CO1 1UU CO1 1UW CO1 1UX CO1 1UZ CO1 1WB CO1 1WD CO1 1WF CO1 1WG CO1 1WJ CO1 1WN CO1 1WQ CO1 1WR CO1 1WW CO1 1XA CO1 1XD CO1 1XF CO1 1XJ CO1 1XL CO1 1XN CO1 1XP CO1 1XR CO1 1XS CO1 1XT CO1 1XW CO1 1XX CO1 1XY CO1 1XZ CO1 1YA CO1 1YD CO1 1YE CO1 1YF CO1 1YH CO1 1YN CO1 1ZA CO1 1ZP CO1 1ZR CO1 1ZS CO1 1ZU CO1 1ZX CO1 1ZY

All CO1 2 postcodes (288)

CO1 2AA CO1 2AD CO1 2AF CO1 2AG CO1 2AH CO1 2AJ CO1 2AN CO1 2AP CO1 2AQ CO1 2AR CO1 2AS CO1 2AT CO1 2AU CO1 2AW CO1 2AX CO1 2AY CO1 2BD CO1 2BE CO1 2BG CO1 2BH CO1 2BJ CO1 2BL CO1 2BN CO1 2BP CO1 2BQ CO1 2BS CO1 2BU CO1 2BX CO1 2BY CO1 2DD CO1 2DE CO1 2DG CO1 2DH CO1 2DL CO1 2DN CO1 2DP CO1 2DR CO1 2DS CO1 2DT CO1 2DU CO1 2DW CO1 2DZ CO1 2EA CO1 2EB CO1 2ED CO1 2EE CO1 2EF CO1 2EG CO1 2EN CO1 2EP CO1 2ER CO1 2ES CO1 2ET CO1 2EU CO1 2EW CO1 2EX CO1 2EY CO1 2EZ CO1 2FA CO1 2FE CO1 2FG CO1 2FH CO1 2FJ CO1 2FL CO1 2FP CO1 2FQ CO1 2FR CO1 2FS CO1 2FT CO1 2FU CO1 2FY CO1 2GB CO1 2GD CO1 2GE CO1 2GF CO1 2GJ CO1 2GL CO1 2GN CO1 2GP CO1 2GQ CO1 2GS CO1 2GU CO1 2GW CO1 2GX CO1 2GY CO1 2GZ CO1 2HA CO1 2HB CO1 2HD CO1 2HE CO1 2HF CO1 2HG CO1 2HH CO1 2HJ CO1 2HL CO1 2HN CO1 2HP CO1 2HR CO1 2HS CO1 2HT CO1 2HU CO1 2HX CO1 2HY CO1 2HZ CO1 2JA CO1 2JB CO1 2JD CO1 2JE CO1 2JF CO1 2JG CO1 2JH CO1 2JJ CO1 2JL CO1 2JP CO1 2JQ CO1 2JR CO1 2JS CO1 2JT CO1 2JU CO1 2JX CO1 2JZ CO1 2LA CO1 2LB CO1 2LD CO1 2LE CO1 2LF CO1 2LH CO1 2LJ CO1 2LL CO1 2LN CO1 2LP CO1 2LQ CO1 2LR CO1 2LS CO1 2LT CO1 2LU CO1 2LW CO1 2LX CO1 2LY CO1 2LZ CO1 2NA CO1 2NB CO1 2NE CO1 2NF CO1 2NG CO1 2NH CO1 2NJ CO1 2NL CO1 2NN CO1 2NP CO1 2NQ CO1 2NR CO1 2NS CO1 2NT CO1 2NU CO1 2NW CO1 2NZ CO1 2PF CO1 2PG CO1 2PH CO1 2PJ CO1 2PQ CO1 2PR CO1 2PS CO1 2PU CO1 2PW CO1 2PX CO1 2PY CO1 2PZ CO1 2QA CO1 2QB CO1 2QD CO1 2QE CO1 2QG CO1 2QL CO1 2QN CO1 2QR CO1 2QT CO1 2QU CO1 2QW CO1 2QX CO1 2QY CO1 2QZ CO1 2RA CO1 2RB CO1 2RD CO1 2RE CO1 2RF CO1 2RG CO1 2RH CO1 2RJ CO1 2RL CO1 2RN CO1 2RP CO1 2RQ CO1 2RR CO1 2RS CO1 2RT CO1 2RU CO1 2RW CO1 2RX CO1 2RZ CO1 2SA CO1 2SB CO1 2SD CO1 2SE CO1 2SF CO1 2SG CO1 2SH CO1 2SJ CO1 2SL CO1 2SN CO1 2SP CO1 2SQ CO1 2ST CO1 2SU CO1 2SW CO1 2SX CO1 2SY CO1 2SZ CO1 2TA CO1 2TB CO1 2TE CO1 2TG CO1 2TH CO1 2TJ CO1 2TL CO1 2TN CO1 2TP CO1 2TQ CO1 2TR CO1 2TS CO1 2TT CO1 2TU CO1 2TX CO1 2TZ CO1 2UD CO1 2UF CO1 2UG CO1 2UJ CO1 2UL CO1 2UP CO1 2UQ CO1 2UR CO1 2US CO1 2UT CO1 2UU CO1 2UW CO1 2UY CO1 2UZ CO1 2WA CO1 2WB CO1 2WF CO1 2WG CO1 2WJ CO1 2WS CO1 2WT CO1 2XA CO1 2XD CO1 2XE CO1 2XF CO1 2XH CO1 2XL CO1 2XS CO1 2XT CO1 2YB CO1 2YD CO1 2YE CO1 2YG CO1 2YH CO1 2YL CO1 2YN CO1 2YR CO1 2YT CO1 2YU CO1 2YW CO1 2ZD CO1 2ZE CO1 2ZF CO1 2ZG CO1 2ZH CO1 2ZJ CO1 2ZL CO1 2ZN CO1 2ZP CO1 2ZQ CO1 2ZR CO1 2ZT

All CO1 9 postcodes (1)

CO1 9SN

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Living in Colchester

CO1's reliance on diverse infrastructure suggests planned coverage targeting areas where cable proved uneconomical. Premises in the superfast-only tier still experience 30 to 100 Mbps speeds, suitable for most household needs including streaming and video calls.

Remote worker score

53/100

Connectivity and amenities for home working

Family score

50/100

Schools, safety and family amenities

Value score

50/100

What you get for the local price level

CO1 broadband FAQs

Why is alternative infrastructure so prevalent in CO1?

33.3% of postcodes depend on non-cable solutions, likely compensating for gaps in primary fibre and cable coverage in central Colchester.

What percentage of CO1 lacks superfast speeds?

Around 11.3% of postcodes cannot access 30+ Mbps, approximately 58 premises reliant on slower connections.

Does CO1 have full fibre gigabit availability?

Full fibre is 0%. Gigabit at 68.4% is cable-based, with alternative infrastructure supplementing coverage where wired networks are limited.

Is CO1 suitable for remote work across all premises?

Most can support working from home: 88.7% have superfast, and those on alternative infrastructure at 30+ Mbps typically manage video conferencing and file transfers adequately.

Neighbouring districts

CO4

1,174 postcodes

96% superfast

CO2

931 postcodes

99% superfast

CO3

856 postcodes

98% superfast

CO7

1,298 postcodes

95% superfast

CO6

999 postcodes

90% superfast

CO5

957 postcodes

95% superfast

Check your exact postcode

Every postcode in CO1 has its own page with broadband speeds, house prices, school ratings and crime stats. You can also compare providers for your address.

Data sources: Broadband data from Ofcom Connected Nations 2025 · House prices from HM Land Registry · Crime from Police.uk · See all data sources