STOLAF

AS21951 · St. Olaf College · US · ARIN

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3

Upstream providers

0

Downstream customers

2k

v4 addresses

<0.1

v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Provider	First Seen	Last Seen	Peers
AS57 AS57	2024-09-01 1y 8mo	2026-05-09	13 peers AS209 AS1299 AS17350 AS47147 AS49028 AS199524 AS209718
AS6939 AS6939	2024-09-01 1y 8mo	2026-05-09	35 peers AS209 AS13781 AS199524
AS-OWTNMN AS15011	2024-09-01 1y 8mo	2026-05-09	6 peers AS3257 AS5580 AS7768 AS8582 AS16260 AS398465

Customers (0)

No customers in current snapshot.

Network Size

IPv4 and IPv6 prefixes originated over time

2

v4 prefixes

2k

v4 addresses

1

v6 prefixes

<0.1

v6 /32s

Peering Links Over Time

Count of unclassified adjacencies per snapshot date

Event Log

All New Transit Lost Transit Possible Trial Renewal Approaching

2026-02-19

New Transit

STOLAF AS21951 → added provider AS57 AS57

Confidence: 90%

⇄

2026-02-04

Lost Transit

STOLAF AS21951 → lost provider AS57 AS57

Confidence: 85% Duration: 520d

⇄

2025-03-27

Lost Transit

STOLAF AS21951 → lost provider AS57 AS57

Confidence: 85% Duration: 206d

⇄

2024-09-02

New Transit

STOLAF AS21951 → added provider AS-OWTNMN AS15011

Confidence: 90%

⇄

2024-09-02

New Transit

STOLAF AS21951 → added provider AS6939 AS6939

Confidence: 90%

⇄

2024-09-02

New Transit

STOLAF AS21951 → added provider AS57 AS57

Confidence: 90%

⇄

Renewal Calendar

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

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