BRSK

AS51809 · GB · RIPENCC

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1

Upstream providers

1

Downstream customers

30k

v4 addresses

8

v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Provider	First Seen	Last Seen	Peers	Confidence
youfibre AS212655	2024-10-16 1y 6mo	2026-05-08	184 peers AS209 AS999 AS1031 AS1299 AS3257 AS3320 AS3491 AS3549 AS4181 AS4775 AS5392 AS5394 AS5580 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8888 AS9268 AS12956 AS14041 AS14315 AS14630 AS14907 AS16276 AS17660 AS19754 AS20514 AS20811 AS23367 AS24516 AS27986 AS30950 AS32590 AS34927 AS35710 AS37697 AS40387 AS42541 AS48112 AS48237 AS49434 AS49544 AS49605 AS51185 AS52468 AS52873 AS57821 AS132847 AS132884 AS134823 AS142289 AS151704 AS197580 AS199524 AS199938 AS205206 AS210937 AS216285 AS262462 AS264409 AS266213 AS398465

Customers (1)

Customer	Country	First Seen	Last Seen	IPs	Peers	Confidence
MSUK-ISP AS216405	GB	2025-07-31 9mo	2026-05-08	1.8k	184 peers AS209 AS999 AS1031 AS1299 AS3257 AS3320 AS3491 AS3549 AS4181 AS4775 AS5392 AS5394 AS5580 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8888 AS9268 AS12956 AS14041 AS14315 AS14630 AS14907 AS16276 AS17660 AS19754 AS20514 AS20811 AS23367 AS24516 AS27986 AS30950 AS32590 AS34927 AS35710 AS37697 AS40387 AS42541 AS48112 AS48237 AS49434 AS49544 AS49605 AS51185 AS52468 AS52873 AS57821 AS132847 AS132884 AS134823 AS142289 AS151704 AS197580 AS199524 AS199938 AS205206 AS210937 AS216285 AS262462 AS264409 AS266213 AS398465

Network Size

IPv4 and IPv6 prefixes originated over time

38

v4 prefixes

30k

v4 addresses

1

v6 prefixes

8

v6 /32s

Peering Links Over Time

Count of unclassified adjacencies per snapshot date

Event Log

All New Transit Lost Transit Possible Trial Renewal Approaching

2025-08-01

New Transit

MSUK-ISP AS216405 → added provider BRSK AS51809

Confidence: 90%

⇄

2025-02-13

Lost Transit

BRSK AS51809 → lost provider GTT-BACKBONE AS3257

Confidence: 85% Duration: 164d

⇄

2025-01-09

Lost Transit

BRSK AS51809 → lost provider AS3356 AS3356

Confidence: 85% Duration: 129d

⇄

2024-11-10

New Transit

BRSK AS51809 → added provider youfibre AS212655

Confidence: 90%

⇄

2024-09-02

New Transit

BRSK AS51809 → added provider AS3356 AS3356

Confidence: 90%

⇄

2024-09-02

New Transit

BRSK AS51809 → added provider GTT-BACKBONE AS3257

Confidence: 90%

⇄

Renewal Calendar

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

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