Adams 12

Data as of 2026-10-04
BGP inherited
This organisation
Netblocks6 · 10,496 IPv4 addresses
Record ID245478941
RegistryBGP
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 6 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 (6)

⬇ export CSV
CIDR Org name Registry Status Confidence
129.19.151.0/24 Adams 12 BGP ANNOUNCED ● high
129.19.152.0/24 Adams 12 BGP ANNOUNCED ● high
204.228.89.0 – 204.228.127.255 Adams 12 ARIN DIRECT ALLOCATION ● high
204.228.96.0/19 Adams 12 BGP ANNOUNCED ● high
204.228.96.0/24 Adams 12 BGP ANNOUNCED ● high
204.228.97.0/24 Adams 12 BGP ANNOUNCED ● high

Footprint over time

6 weekly snapshots · JSON
6 0 netblocks since 2026-07-13
2026-07-13 peak 6 2026-09-06

Network trust

what's this?
RPKI hygiene: B how networks compare →
83.3% of checked blocks have valid RPKI ROA coverage (5 of 6)
Possible discrepancies (3)

These blocks are registered to Adams 12 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.

204.228.96.0/19 /19 authorized for AS14041 — University Corporation for Atmospheric Research
204.228.96.0/24 /24 authorized for AS14041 — University Corporation for Atmospheric Research
204.228.97.0/24 /24 authorized for AS14041 — University Corporation for Atmospheric Research

NIC Handles

ADARI-ARIN ADARI-ARIN ADARI-ARIN AFSS-11-Z AS30136 INFRA224-ARIN