Princeton Plasma Physics Laboratory

Data as of 2026-08-23
BGP inherited
Cluster stats
Netblocks6 · 8,960 IPv4 addresses
IPv6 1 prefix (largest 2001:400:6610::/48)
Cluster ID226912435
RegistryBGP
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 7 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

2 weekly snapshots · JSON
9 +2 netblocks since 2026-08-16
2026-08-16 peak 9 2026-08-23

IP Ranges (6)

⬇ export CSV
CIDR Org name Registry Status Confidence
192.55.106.0/24 Princeton Plasma Physics Laboratory ARIN DIRECT ALLOCATION ● high
192.103.13.0/24 Princeton Plasma Physics Laboratory ARIN DIRECT ALLOCATION ● high
192.188.106.0/24 Princeton Plasma Physics Laboratory ARIN DIRECT ALLOCATION ● high
198.35.0.0/20 Princeton Plasma Physics Laboratory ARIN DIRECT ALLOCATION ● high
198.125.224.0/20 Princeton Plasma Physics Laboratory ARIN ASSIGNMENT ● high
2001:400:6610::/48 Princeton Plasma Physics Laboratory ARIN ASSIGNMENT ● high

IPv6 ranges (1)

CIDR
2001:400:6610::/48

Network trust

what's this?
RPKI hygiene: D how networks compare →
22.2% of checked blocks have valid RPKI ROA coverage (2 of 9)
Possible discrepancies (1)

These blocks are registered to Princeton Plasma Physics Laboratory 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.

198.125.224.0/20 /20 authorized for AS291 — ESnet
Routed via provider/NREN (1)

These blocks are cryptographically authorized for this organisation's national research & education network or transit provider — expected topology for an institution that routes through it, not a discrepancy.

2001:400:6610::/48 /48 routed via AS293 — ESnet (ESnet)

NIC Handles

AS3380 KSI13-ARIN PIM2-ARIN PIM2-ARIN PIM2-ARIN PIM2-ARIN PPPL