CSG SYSTEMS INTERNATIONAL, INC.
CSG Systems Inc.
Data as of 2026-10-11
GLEIF verified
LEI
549300D7FJZUOHHXUA81
Registered name
CSG SYSTEMS INTERNATIONAL, INC.
Jurisdiction
Ultimate parent
No parent on file in GLEIF
This organisation
| Netblocks | 14 · 74,256 IPv4 addresses |
| IPv6 | 3 prefixes (largest 2601:1a00::/24) |
| Registered in | United States (8) · India (3) · Germany (1) |
| Record ID | 245486726 |
| Registry | APNIC |
| Owner jurisdiction | US-DE |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 549300D7FJZUOHHXUA81 |
| Shared handles | clustered on 23 shared RIR contact/maintainer handles |
| Registry names | 5 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (14)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 12.189.24.104/29 | CSG Systems Inc. | ARIN | ASSIGNMENT | ● high |
| 103.20.244.0/24 | CSG Systems International INC. | APNIC | ASSIGNED PORTABLE | ● high |
| 158.155.0.0/16 | CSG Systems Inc. | ARIN | DIRECT ALLOCATION | ● high |
| 202.70.137.0/24 | CSG Systems International INC. | BGP | ANNOUNCED | ● high |
| 205.144.144.0/20 | CSG Systems Inc. | ARIN | DIRECT ALLOCATION | ● high |
| 205.144.146.0/24 | CSG Systems Inc. | BGP | ANNOUNCED | ● high |
| 205.144.147.0/24 | CSG Systems Inc. | BGP | ANNOUNCED | ● high |
| 205.144.157.0/24 | CSG Systems Inc. | BGP | ANNOUNCED | ● high |
| 205.144.159.0/24 | CSG Systems Inc. | BGP | ANNOUNCED | ● high |
| 206.221.48.0/20 | CSG Systems Inc. | ARIN | DIRECT ALLOCATION | ● high |
| 2001:df1:21c0::/47 | CSG Systems International INC. | APNIC | ASSIGNED PORTABLE | ● high |
| 2601:1a00::/24 | CSG Systems Inc. | ARIN | DIRECT ALLOCATION | ● high |
| 80.150.112.32/29 | CSG-SYSTEMS-PINNEBERG-NET | RIPE | ASSIGNED PA | ● low |
| 2003:dd:7011::/48 | CSG-SYSTEMS-PINNEBERG-NET | RIPE | ASSIGNED | ● low |
IPv6 ranges (3)
Footprint over time
16 weekly snapshots · JSON
15
-25 netblocks since 2026-07-05
2026-07-05
peak 40
2026-10-11
Network trust
what's this?
RPKI hygiene: F
how networks compare →
13.3%
of checked blocks have valid RPKI ROA coverage
(2 of 15)
Possible discrepancies (1)
These blocks are registered to CSG Systems Inc. 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.
| 2003:dd:7011::/48 /48 | authorized for AS3320 — Deutsche Telekom AG |
NIC Handles
AC2608-AP
APNIC-HM
AS133324
AS14207
AS46895
CA516-AP
CA516-AP
CGS-ORG-ARIN
CNS22-ARIN
CNS22-ARIN
CNS22-ARIN
CNS22-ARIN
+11 more