CSN Support Services

BGP inherited
Cluster stats
Netblocks23 · 21,750 IPv4 addresses
Cluster ID214403563
RegistryBGP
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 11 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

6 weekly snapshots · JSON
23 -3 netblocks since 2026-07-05
2026-07-05 peak 27 2026-07-26

IP Ranges (23)

⬇ export CSV
CIDR Org name Registry Status Confidence
192.133.160.0/20 CSN Support Services BGP ANNOUNCED ● high
192.133.176.0/21 CSN Support Services BGP ANNOUNCED ● high
192.133.178.0/23 CSN Support Services BGP ANNOUNCED ● high
192.133.181.0/24 CSN Support Services BGP ANNOUNCED ● high
192.133.182.0/24 CSN Support Services BGP ANNOUNCED ● high
192.133.184.0/22 CSN Support Services BGP ANNOUNCED ● high
199.66.188.0/24 CSN Support Services BGP ANNOUNCED ● high
2602:f98b:6::/48 CSN Support Services BGP ANNOUNCED ● high
2602:f98b:10::/48 CSN Support Services BGP ANNOUNCED ● high
2602:f98b:20::/44 CSN Support Services BGP ANNOUNCED ● high
2602:f98b:26::/48 CSN Support Services BGP ANNOUNCED ● high
2602:f98b:2e::/48 CSN Support Services BGP ANNOUNCED ● high
2602:f98b:30::/44 CSN Support Services BGP ANNOUNCED ● high
2602:f98b:30::/48 CSN Support Services BGP ANNOUNCED ● high
2602:f98b:33::/48 CSN Support Services BGP ANNOUNCED ● high
2602:f98b:35::/48 CSN Support Services BGP ANNOUNCED ● high
2602:f98b:3e::/48 CSN Support Services BGP ANNOUNCED ● high
2602:f98b:40::/48 CSN Support Services BGP ANNOUNCED ● high
2620:41::/47 CSN Support Services BGP ANNOUNCED ● high
2620:41::/48 CSN Support Services BGP ANNOUNCED ● high
192.133.144.0/20 CSN Support Services ARIN ASSIGNMENT ● low
192.133.160.0/19 CSN Support Services ARIN ASSIGNMENT ● low
199.66.188.0/22 CSN Support Services ARIN DIRECT ALLOCATION ● low

Network trust

what's this?
RPKI hygiene: C how networks compare →
60.9% of checked blocks have valid RPKI ROA coverage (14 of 23)
Possible discrepancies (2)

These blocks are registered to CSN Support Services 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.

2602:f98b:10::/48 /48 authorized for AS14618 — Amazon.com, Inc.
199.66.188.0/24 /24 authorized for AS14618 — Amazon.com, Inc.

NIC Handles

AS11017 AS32764 HOCKE45-ARIN NOC33256-ARIN SAHL-7 SMC327-ARIN SMC327-ARIN SMC327-ARIN SMC327-ARIN SMC327-ARIN SMC327-ARIN