MASTER S.P.A.

MASTER S/A
Data as of 2026-08-30
GLEIF verified
Complete entity footprint
2 linked clusters · 443 netblocks · 214,388 IPv4 addresses · 19 IPv6 prefixes
This organisation's clusters combined by evidence — shared operating domain mastercabo.com.br — not name similarity, so genuinely different organisations that share a name are excluded.
View the full entity page →
LEI
815600AB0065D92CD838
Registered name
MASTER S.P.A.
Jurisdiction
IT
Ultimate parent
No parent on file in GLEIF
This organisation
Netblocks31 · 214,388 IPv4 addresses
IPv6 4 prefixes (largest 2001:df5:4680::/48)
Registered in Brazil (14) · Russia (3) · BD (2) · Greece (2) · KZ (2) · Hong Kong (1)
Record ID231623319
RegistryAFRINIC
Owner jurisdictionIT
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 815600AB0065D92CD838
Shared handles clustered on 33 shared RIR contact/maintainer handles
Registry names 11 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

8 weekly snapshots · JSON
32 -614 netblocks since 2026-07-05
2026-07-05 peak 646 2026-08-30

IP Ranges (31)

⬇ export CSV
CIDR Org name Registry Status Confidence
103.145.74.0/24 Master Net BGP ANNOUNCED ● high
187.16.209.227/32 MASTER DA WEB PEERINGDB ASSIGNED ● high
187.16.215.26/32 MASTER DA WEB PEERINGDB ASSIGNED ● high
200.219.139.14/32 MASTER DA WEB PEERINGDB ASSIGNED ● high
2001:12f8::209:227/128 MASTER DA WEB PEERINGDB ASSIGNED ● high
2001:12f8::215:26/128 MASTER DA WEB PEERINGDB ASSIGNED ● high
2001:12f8:0:3::14/128 MASTER DA WEB PEERINGDB ASSIGNED ● high
61.92.163.2/32 MASTER APNIC ASSIGNED NON-PORTABLE ● low
80.253.20.200 – 80.253.20.223 MASTER-NET RIPE ASSIGNED PA ● low
81.117.148.16/29 MASTER RIPE ASSIGNED PA ● low
82.129.182.48/28 Master-Net AFRINIC ASSIGNED PA ● low
82.200.174.112/29 MASTER RIPE ASSIGNED PA ● low
87.202.198.128/28 MASTER RIPE ASSIGNED PA ● low
95.56.226.120/29 MASTER RIPE ASSIGNED PA ● low
177.44.0.0/17 MASTER S/A ARIN ALLOCATED ● low
177.126.40.0/22 Master Net ARIN ALLOCATED ● low
177.130.128.0/19 MASTER S/A ARIN ALLOCATED ● low
177.130.160.0/19 MASTER S/A ARIN ALLOCATED ● low
179.189.160.0/19 MASTER S/A ARIN ALLOCATED ● low
186.216.64.0/18 MASTER S/A ARIN ALLOCATED ● low
187.44.0.0/18 MASTER S/A ARIN ALLOCATED ● low
187.120.64.0/18 MASTER S/A ARIN ALLOCATED ● low
188.128.94.164/30 Master RIPE ASSIGNED PA ● low
189.91.0.0/19 MASTER S/A ARIN ALLOCATED ● low
191.53.0.0/16 MASTER S/A ARIN ALLOCATED ● low
191.240.0.0/17 MASTER S/A ARIN ALLOCATED ● low
212.48.138.200/29 MASTER-NET RIPE ASSIGNED PA ● low
213.8.70.96/30 Master RIPE ASSIGNED PA ● low
213.23.232.16/29 MASTER-NET RIPE ASSIGNED PA ● low
213.249.54.176/29 master RIPE ASSIGNED PA ● low
2001:df5:4680::/48 Master Net APNIC ASSIGNED PORTABLE ● low

IPv6 ranges (4)

CIDR
2001:df5:4680::/48
2001:12f8:0:3::14/128
2001:12f8::209:227/128
2001:12f8::215:26/128

Domains hosted in this network

what's this?
mastercabo.com.br

Network trust

what's this?
RPKI hygiene: B how networks compare →
90.6% of checked blocks have valid RPKI ROA coverage (29 of 32)
Possible discrepancies (10)

These blocks are registered to MASTER S/A 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.

191.53.0.0/16 /16 authorized for AS28202 — AS28202
191.240.0.0/17 /17 authorized for AS28202 — AS28202
177.44.0.0/17 /17 authorized for AS28202 — AS28202
187.44.0.0/18 /18 authorized for AS28202 — AS28202
186.216.64.0/18 /18 authorized for AS28202 — AS28202
187.120.64.0/18 /18 authorized for AS28202 — AS28202
177.130.160.0/19 /19 authorized for AS28202 — AS28202
177.130.128.0/19 /19 authorized for AS28202 — AS28202
189.91.0.0/19 /19 authorized for AS28202 — AS28202
179.189.160.0/19 /19 authorized for AS28202 — AS28202

NIC Handles

01276647000103 01766744000184 AC2009-AP ADMAS5 ADMAS5 ADMAS5 AM2383-AP APNIC-HM ARCOR-MNT AS139806 AS270564 AS5486-MNT +21 more