Merced County Information Systems
Data as of 2026-08-23
BGP inherited
Cluster stats
| Netblocks | 4 · 65,536 IPv4 addresses |
| All fragments | 14 blocks across 2 clusters |
| Cluster ID | 227451070 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 10 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 |
|---|---|---|---|---|
| 139.151.0.0/16 | Merced County Information Systems | ARIN | DIRECT ALLOCATION | ● high |
| 139.151.32.0/19 | Merced County Information Systems | BGP | ANNOUNCED | ● high |
| 139.151.64.0/18 | Merced County Information Systems | BGP | ANNOUNCED | ● high |
| 139.151.128.0/17 | Merced County Information Systems | BGP | ANNOUNCED | ● high |
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 (3)
These blocks are registered to Merced County Information Systems 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.
| 139.151.128.0/17 /17 | authorized for AS7018 — AT&T Enterprises, LLC |
| 139.151.64.0/18 /18 | authorized for AS7018 — AT&T Enterprises, LLC |
| 139.151.32.0/19 /19 | authorized for AS7018 — AT&T Enterprises, LLC |
NIC Handles
AS402224
AS7018
CARTA23-ARIN
CARTA23-ARIN
CARTA23-ARIN
MCIS-9-Z
ZM83-ARIN
ZM83-ARIN
ZM83-ARIN
ZM83-ARIN