Sify Limited
Data as of 2026-07-26
BGP inherited
Complete entity footprint
3 linked clusters ·
2,744 netblocks ·
998,913 IPv4 addresses ·
36 IPv6 prefixes
This organisation's clusters combined by evidence —
shared operating domain sify.net
— not name similarity, so genuinely different organisations that share a name are excluded.
Cluster stats
| Netblocks | 2,226 · 795,906 IPv4 addresses |
| IPv6 | 35 prefixes (largest 2001:e48::/32) |
| Registered in | India (2,192) · Belgium (1) · United States (1) |
| All fragments | 2,265 blocks across 6 clusters |
| Cluster ID | 213212816 |
| Registry | APNIC |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 25 shared RIR contact/maintainer handles |
| Registry names | 5 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
6 weekly snapshots · JSON
2,230
0 netblocks since 2026-07-05
2026-07-05
peak 2,231
2026-07-26
IP Ranges (2,226)
showing 50 of 2,226 — see all — ⬇ export CSV (free export limited to 500 rows — subscribe for the full export)| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 61.0.248.0/25 | Sify | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 117.239.77.0 – 117.239.77.128 | Sify | APNIC | ASSIGNED NON-PORTABLE | ● high |
| 2a0d:7100:6::/48 | Sify Limited | RIPE | ASSIGNED | ● high |
| 1.6.0.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.1.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.2.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.4.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.7.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.8.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.9.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.10.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.11.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.12.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.12.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.13.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.16.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.17.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.19.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.20.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.24.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.28.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.31.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.32.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.36.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.40.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.42.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.43.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.44.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.46.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.48.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.52.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.52.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.54.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.56.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.59.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.60.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.60.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.64.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.65.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.66.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.67.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.68.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.69.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.70.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.71.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.72.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.72.0/22 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.73.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.74.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
| 1.6.75.0/24 | Sify Limited | BGP | ANNOUNCED | ● medium |
IPv6 ranges (35)
showing the 15 largest allocationsNetwork trust
what's this?
RPKI hygiene: B
how networks compare →
92.9%
of checked blocks have valid RPKI ROA coverage
(1,858 of 2,000, sampled from 2,230)
Possible discrepancies (4)
These blocks are registered to Sify Limited but cryptographically authorized for a different, unrelated network (3 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 221.134.236.0/22 /22 | authorized for AS583 — Air Force Systems Networking |
| 1.7.229.0/24 /24 | authorized for AS4755 — Tata Communications Limited |
| 118.94.81.0/24 /24 | authorized for AS13150 — CATO NETWORKS LTD |
| 118.94.82.0/24 /24 | authorized for AS13150 — CATO NETWORKS LTD |
NIC Handles
AB1061-AP
AS9583
CDN1-AP
DUMY-RIPE
DUMY-RIPE
HS51-AP
HS51-AP
MAINT-IN-BBIL
MAINT-IN-DOT
MAINT-IN-IRINN
MAINT-IN-IRINN
MAINT-IN-NETCORE-INC
+13 more