H&R Block
Data as of 2026-08-23
BGP inherited
Cluster stats
| Netblocks | 10 · 65,537 IPv4 addresses |
| Cluster ID | 227145842 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 7 shared RIR contact/maintainer handles |
| Registry names | 3 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
9 weekly snapshots · JSON
10
0 netblocks since 2026-07-05
2026-07-05
peak 10
2026-08-23
IP Ranges (10)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 168.137.0.0/16 | H&R Block | ARIN | DIRECT ALLOCATION | ● high |
| 168.137.0.0/24 | H&R Block | BGP | ANNOUNCED | ● high |
| 168.137.2.0/24 | H&R Block | BGP | ANNOUNCED | ● high |
| 168.137.4.0/24 | H&R Block | BGP | ANNOUNCED | ● high |
| 168.137.5.0/24 | H&R Block | BGP | ANNOUNCED | ● high |
| 168.137.11.0/24 | H&R Block | BGP | ANNOUNCED | ● high |
| 168.137.100.0/22 | H&R Block | BGP | ANNOUNCED | ● high |
| 168.137.104.0/24 | H&R Block | BGP | ANNOUNCED | ● high |
| 168.137.105.0/24 | H&R Block | BGP | ANNOUNCED | ● high |
| 208.115.137.203/32 | H&R Block | PEERINGDB | ASSIGNED | ● high |
NIC Handles
AS26989
AS26989
DURIG2-ARIN
DURIG2-ARIN
HRBLO
KANTK1-ARIN
KANTK1-ARIN