STOLAF

AS21951 · St. Olaf College · US · ARIN
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 Confidence AF
AS6939
AS6939
2024-09-01
1y 9mo
2026-06-09
35 peers
AS209 AS1299 AS3257 AS3549 AS5580 AS8582 AS17290 AS25160 AS55720 AS199524 AS398465
v4 v6
AS57
AS57
2024-09-01
1y 9mo
2026-06-09
13 peers
AS209 AS1299 AS17290 AS17350 AS47147 AS49028 AS151704 AS199524 AS209718
v4 v6

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

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

Renewal Calendar

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

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