ADVENT SOFTWARE, INC.
Advent Software
LEI
5493008K65FKZ7JK3617
Registered name
ADVENT SOFTWARE, INC.
Jurisdiction
Ultimate parent
529900POY8H7NPPNKK71
Cluster stats
Netblocks19
All fragments 49 blocks across 16 clusters
Cluster ID191682655
RegistryAPNIC
Owner jurisdictionUS-DE
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Legal identityLEI 5493008K65FKZ7JK3617
Shared handles clustered on 29 shared RIR contact/maintainer handles
Registry names 11 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

IP Ranges (19)

⬇ export CSV
CIDR Org name Registry Status Confidence
103.16.64.0/24 Advent One BGP ANNOUNCED ● high
103.16.65.0/24 Advent One BGP ANNOUNCED ● high
103.16.66.0/24 Advent One BGP ANNOUNCED ● high
103.16.67.0/24 Advent One BGP ANNOUNCED ● high
170.40.225.0/24 Advent Software BGP ANNOUNCED ● high
203.126.146.144/28 ADVENT-SG APNIC ASSIGNED NON-PORTABLE ● high
210.9.64.16/30 ADVENT-CC-AU APNIC ASSIGNED NON-PORTABLE ● high
216.10.144.0/20 Advent Software ARIN ● 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
93.153.170.184/29 ADVENT-LAN RIPE ASSIGNED PA ● low
103.16.64.0/22 Advent One APNIC ALLOCATED PORTABLE ● low
194.154.194.192/29 ADVENT-LU RIPE ASSIGNED PA ● low
203.120.253.24/29 ADVENT-SG APNIC ASSIGNED NON-PORTABLE ● low
212.125.86.64/26 ADVENT-UK RIPE ASSIGNED PA ● low
212.249.35.144/28 ADVENT-CH RIPE ASSIGNED PA ● low
2001:7e8:815b:100::/56 ADVENT-LU RIPE ASSIGNED ● low

Corporate group (9 entities) ~

Network trust

what's this?
RPKI hygiene: D how networks compare →
36.8% of checked blocks have valid RPKI ROA coverage (7 of 19)
Possible discrepancies (1)

These blocks are registered to Advent Software 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.

2001:7e8:815b:100::/56 /56 authorized for AS6661 — POST Luxembourg

NIC Handles

AA1830-AP ADVENT-6 ALCOC13-ARIN AOA2-AP AOA2-AP AP930-AP APNIC-HM AS11144 AS140327 AS6661-MNT AS702-MNT AS8426-MNT +17 more