ADVENT SOFTWARE, INC.

Advent Software
Data as of 2026-11-08
GLEIF verified
Complete entity footprint
11 linked clusters · 124 netblocks · 93,080 IPv4 addresses · 7 IPv6 prefixes
This organisation's clusters combined by evidence — shared GLEIF corporate family — not name similarity, so genuinely different organisations that share a name are excluded.
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LEI
5493008K65FKZ7JK3617
Registered name
ADVENT SOFTWARE, INC.
Jurisdiction
US-DE
Ultimate parent
SS&C TECHNOLOGIES HOLDINGS, INC.
529900POY8H7NPPNKK71
This organisation
Netblocks7 · 4,392 IPv4 addresses
Registered in United States (6) · United Kingdom (1)
Record ID265932021
RegistryBGP
Owner jurisdictionUS-DE
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 5493008K65FKZ7JK3617
Shared handles clustered on 9 shared RIR contact/maintainer handles
Registry names 3 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (7)

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CIDR Org name Registry Status Confidence
162.248.23.0/27 Advent Software ARIN ASSIGNMENT ● high
170.40.225.0/24 Advent Software BGP ANNOUNCED ● high
216.10.144.0/20 Advent Software ARIN DIRECT ALLOCATION ● high
216.10.149.0/24 Advent Software BGP ANNOUNCED ● high
216.10.150.0/24 Advent Software BGP ANNOUNCED ● high
216.10.151.0/24 Advent Software BGP ANNOUNCED ● high
80.169.21.184/29 NET-SE-ADVENT-SOFTWARE RIPE ASSIGNED PA ● low

Footprint over time

12 weekly snapshots · JSON
7 -12 netblocks since 2026-07-05
2026-07-05 peak 19 2026-11-08

Corporate group (11 confirmed entities)

Network trust

what's this?
RPKI hygiene: F how networks compare →
14.3% of checked blocks have valid RPKI ROA coverage (1 of 7)
No discrepancies found among checked blocks.

NIC Handles

ADVENT-6 ALCOC13-ARIN AS11144 DUMY-RIPE DUMY-RIPE MC1816-ARIN MC1816-ARIN MC1816-ARIN SE-COLT-MNT