Internet conditions in Kolkata, India

Measured as the district of Kolkata, West BengalLocal time Asia/KolkataMeasured every hour since February 2019Data to 16 Jul 2026
Sites
Grade within India
Atop fifth of 386 districts
High confidence · the district’s own measurement
Score
Connectivity score
37/ 100
27th percentile worldwide · 47th of 386 in India
Conditions
Typical week
228ms latency
Jitter 82 ms · steadier than 42% of districts worldwide
Sites
Disruptions, last 12 months
1episode · 3 days
Latest ended 9 Feb 2026
Conditions

Where this is

The district the measurement describes.

District outline, KASPR boundary layer

Conditions

The week, hour by hour

Chance of a rough hour, local time. Darker is rougher.

00061218
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Steadiest Wed 03:00 (24% chance of a rough hour)Roughest Wed 19:00 (88%)Swing 10.2 points: the hour of the week matters a little here
Score

What makes the score

Five parts, each a percentile among scored districts worldwide (100 = best). The second mark is the same part ranked within India.

Speed
39 · 90
Stability
32 · 82
Evening
16 · 96
Reliability
66 · 68
Trend
17 · 89
worldwide percentilewithin IndiaWeights 30 / 25 / 20 / 20 / 5
Score

Two years of months

Monthly mean latency and jitter. The connectivity index compares responding addresses with the district’s own norm.

2358923581Jul2025Jul2026
latency, msjitter, msConnectivity index +8.2% against a year earlier
Sites

Disruptions

Falls in responding addresses against the district’s own baseline. The record says when, where and how deep, not why.

7 Feb 2026 – 9 Feb 2026Collapse, 3 days, 68% below baselinelatest
9 Apr 2025 – 7 May 2025Sustained fall, 29 days, 23% below baseline
1 Mar 2025 – 9 Mar 2025Collapse, 9 days, 81% below baseline

Worst hours of a typical week: Wed 19:00, Fri 20:00, Mon 19:00. Chance of a rough hour at the peak: 88%.

Sites

Other cities in India

Grades within each country. Each links to its own page.

CAhmedabad213 ms
CBengaluru230 ms
CChennai218 ms
CDelhi235 ms
AHyderabad207 ms
CMumbai204 ms
APune193 ms
ASurat210 ms

All 100 cities →

What to do with this

Three ways in, one per product.

Check your own locations

Paste your sites or offices and get a grade and a report for each. The first look is free.

Open the location check →

When to connect from Kolkata

Pick the people on a call or the audience for a post and see the steadier hours, on the web or in Slack.

Open KASPR Sense →

Monitor Kolkata

Alerts the moment the district breaks, the full history, and the data behind this page in the dashboard.

Explore the dashboard →

Questions people ask

Is the internet in Kolkata good?
By world standards Kolkata sits in the 27th percentile of 15,460 scored districts, with 228 ms typical latency and 82 ms jitter. Within India it ranks 47th of 386, in the top fifth.
When is the internet in Kolkata worst?
The roughest slot of a typical week is Wed 19:00, when the chance of a rough hour peaks at 88%. The steadiest is Wed 03:00 at 24%. Between them, the hour of the week matters a little here.
Were there internet outages in Kolkata recently?
One episode in the last twelve months, 3 days in all. The latest ran from 7 Feb 2026 to 9 Feb 2026, with responding addresses 68% below the district’s baseline.
How is this measured?
KASPR sends round-trip requests to geolocated IPv4 addresses from the outside, every hour since February 2019, and aggregates the answers by district. No apps, no speed tests, the same method everywhere. The figures describe the district a city centre falls in, at one data vintage.

Source: KASPR Datahaus (pulse.kasprdata.com) · Data to 2026-07-16 · the measurement records timing and depth, not cause · How KASPR measures