JCST

BGP inherited
Cluster stats
Netblocks6 · 619 IPv4 addresses
Cluster ID212125167
RegistryAPNIC
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 13 shared RIR contact/maintainer handles
Registry names 1 distinct registrant name across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

5 weekly snapshots · JSON
6 0 netblocks since 2026-07-05
2026-07-05 peak 6 2026-07-19

IP Ranges (6)

⬇ export CSV
CIDR Org name Registry Status Confidence
123.127.66.32/27 JCST APNIC ASSIGNED NON-PORTABLE ● high
123.127.85.80/28 JCST APNIC ASSIGNED NON-PORTABLE ● high
123.127.158.160/27 JCST APNIC ASSIGNED NON-PORTABLE ● high
123.127.158.192/27 JCST APNIC ASSIGNED NON-PORTABLE ● high
103.152.246.0/23 JCST APNIC ALLOCATED PORTABLE ● low
2406:3ac0::/32 JCST APNIC ALLOCATED PORTABLE ● low

Possibly related to this organisation

what's this?
Sub-allocations under carriers
IP blocks an ISP reassigned to a similarly-named customer — decoded from the ISP's own naming convention, not a direct registration.
  • JNJCSTNB via CNCGROUP IP network of ShangHai IDC sub-allocation
  • CHINAZSBFJCSTATIONZS via CNCGROUP IP network of ShangHai IDC sub-allocation

Network trust

what's this?
RPKI hygiene: C how networks compare →
66.7% of checked blocks have valid RPKI ROA coverage (4 of 6)
No discrepancies found among checked blocks.

NIC Handles

AC1601-AP JS4332-AP MAINT-CNCGROUP-BJ MAINT-CNNIC-AP YW7109-AP zl1619-AP zl1619-AP zl1620-AP zl1620-AP zl1621-AP zl1621-AP zl1665-AP +1 more