Function4

Data as of 2026-07-26
Registry
Limited data: only 2 ranges found registered under this exact name. This may not reflect the organisation's full internet footprint — many companies' web and cloud infrastructure is hosted under a third-party provider's own registration rather than their own.
Cluster stats
Netblocks2 · 512 IPv4 addresses
Cluster ID213658921
RegistryAPNIC
Customersfind customers using this network →
Evidence & provenance ?
Attribution Registry record
Shared handles clustered on 9 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (2)

⬇ export CSV
CIDR Org name Registry Status Confidence
163.227.142.0/24 Function4 BGP ANNOUNCED ● high
202.134.253.0/24 Function4 APNIC ALLOCATED NON-PORTABLE ● low

Network trust

what's this?
RPKI hygiene: D how networks compare →
33.3% of checked blocks have valid RPKI ROA coverage (1 of 3)
Possible discrepancies (1)

These blocks are registered to Function4 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.

202.134.253.0/24 /24 authorized for AS834 — IPXO LLC

NIC Handles

AA2205-AP APNIC-HM AQ222-AP AS153748 MAINT-AIS-IPXO MAINT-NETUTILS-AP ORG-FA61-AP QIPL2-AP QIPL2-AP