TSYSI

AS209258 · NL · RIPENCC

2

Upstream providers

0

Downstream customers

256

v4 addresses

0

v6 /32s

Provider History

Active Possible trial (<90d) Historical

Addr family: All IPv4 IPv6

Provider	First Seen	Last Seen	Peers	Confidence	AF
BT-UK-AS AS2856	2024-09-01 1y 8mo	2026-05-14	23 peers AS209 AS2500 AS2914 AS3549 AS4128 AS7018 AS14315 AS14907 AS15562 AS16276 AS24482 AS29140 AS32590 AS49544 AS53828 AS142289 AS150369 AS398465		v4 v6
NTL AS5089	2025-05-20 12mo	2026-05-14	12 peers AS3257 AS5580 AS6894 AS8582 AS57821		v4 v6

Addr family: All IPv4 IPv6

No customers in current snapshot.

IPv4 and IPv6 prefixes originated over time

1

v4 prefixes

256

v4 addresses

0

v6 prefixes

0

v6 /32s

Count of unclassified adjacencies per snapshot date

2025-10-23

Lost Transit

TSYSI AS209258 → lost provider NTL AS5089

Confidence: 85% Duration: 155d

⇄

Active providers first seen 11–13 months ago — possible annual contract renewals

This data is available to subscribers.