TSYSI

AS209258 · NL · RIPENCC

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2

Upstream providers

0

Downstream customers

256

v4 addresses

0

v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Addr family: All IPv4 IPv6

Provider	First Seen	Last Seen	Peers	Confidence	AF
BT-UK-AS AS2856	2024-09-01 1y 9mo	2026-06-09	23 peers AS209 AS2500 AS2914 AS3549 AS4128 AS6082 AS7018 AS14315 AS14907 AS15562 AS16276 AS16552 AS24482 AS29140 AS32590 AS49544 AS53828 AS55720 AS142289 AS150369		v4 v6
NTL AS5089	2025-05-20 1y	2026-06-09	12 peers AS3257 AS5580 AS6894 AS8582 AS57821		v4 v6

Customers (0)

Addr family: All IPv4 IPv6

No customers in current snapshot.

Network Size

IPv4 and IPv6 prefixes originated over time

1

v4 prefixes

256

v4 addresses

0

v6 prefixes

0

v6 /32s

Peering Links Over Time

Count of unclassified adjacencies per snapshot date

Event Log

All New Transit Lost Transit Possible Trial Renewal Approaching

2025-11-22

New Transit

TSYSI AS209258 → added provider NTL AS5089

Confidence: 90%

⇄

2025-10-23

Lost Transit

TSYSI AS209258 → lost provider NTL AS5089

Confidence: 85% Duration: 155d

⇄

2025-05-21

New Transit

TSYSI AS209258 → added provider NTL AS5089

Confidence: 90%

⇄

2024-09-02

New Transit

TSYSI AS209258 → added provider BT-UK-AS AS2856

Confidence: 90%

⇄

Renewal Calendar

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

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