Compare Networks

Comparing AS4021 and AS27139 — change

AS4021
US · ARIN
0
Providers
0
Customers
Explorer →

AS27139
US · ARIN
2
Providers
1
Customers
Explorer →

Customer Count Over Time

Originated Address Space Over Time

IPv4 Addresses
IPv6 /32s

Prefix Count Over Time

IPv4 Prefixes
IPv6 Prefixes

Unclassified Peers Over Time

AS4021 Providers

No providers.

AS27139 Providers

AS4021 Recent Events

View all →
2025-04-29
Possible Trial
AS4021 AS4021 → possible trial with AS367 AS367
Confidence: 60% Duration: 28d
⇄
2025-04-25
Possible Trial
AS4021 AS4021 → possible trial with AS27139 AS27139
Confidence: 60% Duration: 24d
⇄
2025-02-06
Lost Transit
AS4021 AS4021 → lost provider AS367 AS367
Confidence: 85% Duration: 35d
⇄
2025-01-26
Lost Transit
AS4021 AS4021 → lost provider AS27139 AS27139
Confidence: 85% Duration: 24d
⇄
2025-01-02
New Transit
AS4021 AS4021 → added provider AS27139 AS27139
Confidence: 90%
⇄
2025-01-02
New Transit
AS4021 AS4021 → added provider AS367 AS367
Confidence: 90%
⇄

AS27139 Recent Events

View all →
2025-04-25
Possible Trial
AS4021 AS4021 → possible trial with AS27139 AS27139
Confidence: 60% Duration: 24d
⇄
2025-04-02
New Transit
AS27139 AS27139 → added provider AS27065 AS27065
Confidence: 90%
⇄
2025-04-02
New Transit
AS27139 AS27139 → added provider AS5231 AS5231
Confidence: 90%
⇄
2025-04-02
New Transit
AS3471 AS3471 → added provider AS27139 AS27139
Confidence: 90%
⇄
2025-02-12
New Transit
AS3471 AS3471 → added provider AS27139 AS27139
Confidence: 90%
⇄
2025-02-05
Lost Transit
AS3471 AS3471 → lost provider AS27139 AS27139
Confidence: 85% Duration: 34d
⇄
2025-01-26
Lost Transit
AS4021 AS4021 → lost provider AS27139 AS27139
Confidence: 85% Duration: 24d
⇄
2025-01-02
New Transit
AS27139 AS27139 → added provider AS27065 AS27065
Confidence: 90%
⇄
2025-01-02
New Transit
AS27139 AS27139 → added provider AS5231 AS5231
Confidence: 90%
⇄
2025-01-02
New Transit
AS4021 AS4021 → added provider AS27139 AS27139
Confidence: 90%
⇄