Mainstream International Corp.

Mainstream Group Holdings Ltd
GLEIF verified
LEI
549300R6DX4BRJTDYK49
Registered name
Mainstream International Corp.
Jurisdiction
US-PA
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks24 · 5,005 IPv4 addresses
Registered in Serbia (16) · Australia (2) · BA (1) · Netherlands (1) · SI (1)
All fragments 140 blocks across 22 clusters
Cluster ID208803029
RegistryAPNIC
Owner jurisdictionUS-PA
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 549300R6DX4BRJTDYK49
Shared handles clustered on 13 shared RIR contact/maintainer handles
Registry names 6 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

5 weekly snapshots · JSON
24 0 netblocks since 2026-07-05
2026-07-05 peak 24 2026-07-19

IP Ranges (24)

⬇ export CSV
CIDR Org name Registry Status Confidence
103.139.123.0/24 Mainstream Group Holdings Ltd BGP ANNOUNCED ● high
103.139.123.0/24 Mainstream Group Holdings Ltd APNIC ASSIGNED PORTABLE ● high
185.1.27.51/32 Mainstream PEERINGDB ASSIGNED ● high
185.1.27.82/32 Mainstream PEERINGDB ASSIGNED ● high
2001:7f8:1e::51/128 Mainstream PEERINGDB ASSIGNED ● high
2001:7f8:1e::82/128 Mainstream PEERINGDB ASSIGNED ● high
81.93.78.48/29 MAINSTREAM-NET RIPE ASSIGNED PA ● low
82.214.94.176/28 Mainstream RIPE ASSIGNED PA ● low
87.237.201.0/24 Mainstream RIPE ASSIGNED PA ● low
87.237.202.96 – 87.237.202.247 Mainstream RIPE ASSIGNED PA ● low
87.237.203.0 – 87.237.204.255 Mainstream RIPE ASSIGNED PA ● low
87.237.206.0 – 87.237.206.231 Mainstream RIPE ASSIGNED PA ● low
87.237.207.0/24 Mainstream RIPE ASSIGNED PA ● low
92.249.52.0/24 Mainstream RIPE ASSIGNED PA ● low
92.249.53.0/24 Mainstream RIPE ASSIGNED PA ● low
92.249.54.0/24 Mainstream RIPE ASSIGNED PA ● low
92.249.55.0/24 Mainstream RIPE ASSIGNED PA ● low
185.29.100.0 – 185.29.102.255 Mainstream RIPE ASSIGNED PA ● low
185.29.103.0/24 Mainstream RIPE ASSIGNED PA ● low
188.93.120.0/23 Mainstream RIPE ASSIGNED PA ● low
188.93.122.0/24 Mainstream RIPE ASSIGNED PA ● low
188.93.123.0/24 Mainstream RIPE ASSIGNED PA ● low
217.100.83.32/29 MAINSTREAM_BV RIPE ASSIGNED PA ● low
2001:41f0:15c1::/48 MAINSTREAM_BV RIPE ASSIGNED ● low

Domains hosted in this network

what's this?
united.cloud vijesti.me

Network trust

what's this?
RPKI hygiene: B how networks compare →
87.5% of checked blocks have valid RPKI ROA coverage (21 of 24)
Possible discrepancies (3)

These blocks are registered to Mainstream Group Holdings Ltd but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

2001:41f0:15c1::/48 /48 authorized for AS33915 — Vodafone Libertel B.V.
188.93.122.0/24 /24 authorized for AS35779 — mCloud doo
188.93.123.0/24 /24 authorized for AS35779 — mCloud doo

NIC Handles

AKTON-MNT AM2975-AP APNIC-HM AS139193 AS51859 DUMY-RIPE DUMY-RIPE MGHL1-AP MGHL1-AP MNSHA-MNT ORG-MGHL1-AP TELEKOM-SRPSKE-MNT +1 more