EXTREME WI

Data as of 2026-08-09
BGP inherited
Cluster stats
Netblocks4 · 2,050 IPv4 addresses
IPv6 1 prefix (largest 2001:12f8::222:65/128)
Cluster ID220765010
RegistryPEERINGDB
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 5 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 (4)

⬇ export CSV
CIDR Org name Registry Status Confidence
64.191.232.109/32 EXTREME WI PEERINGDB ASSIGNED ● high
187.16.222.65/32 EXTREME WI PEERINGDB ASSIGNED ● high
2001:12f8::222:65/128 EXTREME WI PEERINGDB ASSIGNED ● high
191.36.168.0/21 EXTREME WI ARIN ALLOCATED ● low

IPv6 ranges (1)

Network trust

what's this?
RPKI hygiene: C how networks compare →
75.0% of checked blocks have valid RPKI ROA coverage (3 of 4)
Possible discrepancies (1)

These blocks are registered to EXTREME WI 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.

191.36.168.0/21 /21 authorized for AS263336 — AS263336

NIC Handles

11000864000120 AS263336 BRHER5 BRHER5 BRHER5