Kolkata

Data as of 2026-10-11
Registry
This organisation
Netblocks12
IPv6 12 prefixes (largest 2401:4900:1000::/44)
Also registered under this name 32 netblocks across 3 separate records
Record ID245609040
RegistryAPNIC
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution Registry record
Shared handles clustered on 4 shared RIR contact/maintainer handles
Registry names 1 distinct registrant name across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (12)

⬇ export CSV
CIDR Org name Registry Status Confidence
2401:4900:1000::/44 Kolkata APNIC ASSIGNED NON-PORTABLE ● low
2401:4900:1010::/44 Kolkata APNIC ASSIGNED NON-PORTABLE ● low
2401:4900:1020::/44 Kolkata APNIC ASSIGNED NON-PORTABLE ● low
2401:4900:1040::/44 Kolkata APNIC ASSIGNED NON-PORTABLE ● low
2401:4900:1108::/45 Kolkata APNIC ASSIGNED NON-PORTABLE ● low
2401:4900:3090::/44 Kolkata APNIC ASSIGNED NON-PORTABLE ● low
2401:4900:3140::/46 Kolkata APNIC ASSIGNED NON-PORTABLE ● low
2401:4900:3144::/46 Kolkata APNIC ASSIGNED NON-PORTABLE ● low
2401:4900:3148::/46 Kolkata APNIC ASSIGNED NON-PORTABLE ● low
2401:4900:314c::/46 Kolkata APNIC ASSIGNED NON-PORTABLE ● low
2401:4900:3220::/44 Kolkata APNIC ASSIGNED NON-PORTABLE ● low
2401:4900:3560::/45 Kolkata APNIC ASSIGNED NON-PORTABLE ● low

IPv6 ranges (12)

CIDR
2401:4900:1000::/44
2401:4900:1010::/44
2401:4900:1020::/44
2401:4900:1040::/44
2401:4900:3090::/44
2401:4900:3220::/44
2401:4900:1108::/45
2401:4900:3560::/45
2401:4900:3140::/46
2401:4900:3144::/46
2401:4900:3148::/46
2401:4900:314c::/46

Footprint over time

16 weekly snapshots · JSON
12 0 netblocks since 2026-07-05
2026-07-05 peak 12 2026-10-11

Network trust

what's this?
RPKI hygiene: A how networks compare →
100.0% of checked blocks have valid RPKI ROA coverage (12 of 12)
Possible discrepancies (12)

These blocks are registered to Kolkata but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

2401:4900:1000::/44 /44 authorized for AS45609 — Bharti Airtel Limited
2401:4900:1010::/44 /44 authorized for AS45609 — Bharti Airtel Limited
2401:4900:1020::/44 /44 authorized for AS45609 — Bharti Airtel Limited
2401:4900:1040::/44 /44 authorized for AS45609 — Bharti Airtel Limited
2401:4900:3090::/44 /44 authorized for AS45609 — Bharti Airtel Limited
2401:4900:3220::/44 /44 authorized for AS45609 — Bharti Airtel Limited
2401:4900:1108::/45 /45 authorized for AS45609 — Bharti Airtel Limited
2401:4900:3560::/45 /45 authorized for AS45609 — Bharti Airtel Limited
2401:4900:3140::/46 /46 authorized for AS45609 — Bharti Airtel Limited
2401:4900:3144::/46 /46 authorized for AS45609 — Bharti Airtel Limited
2401:4900:3148::/46 /46 authorized for AS45609 — Bharti Airtel Limited
2401:4900:314c::/46 /46 authorized for AS45609 — Bharti Airtel Limited

NIC Handles

AB1077-AP MAINT-IN-MOBILITY RJ777-AP RJ777-AP