Compare Networks

Comparing AS27391 and AS21947 — change

AS27391
US · ARIN
3
Providers
0
Customers
Explorer →

AS21947
US · ARIN
4
Providers
13
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

AS27391 Providers

AS21947 Providers

AS27391 Recent Events

View all →
2026-03-26
Lost Transit
AS27391 AS27391 → lost provider AS21947 AS21947
Confidence: 85% Duration: 448d
⇄
2026-03-20
Lost Transit
AS27391 AS27391 → lost provider AS21947 AS21947
Confidence: 85% Duration: 442d
⇄
2026-01-24
New Transit
AS27391 AS27391 → added provider AS3356 AS3356
Confidence: 90%
⇄
2026-01-23
Lost Transit
AS27391 AS27391 → lost provider AS209 AS209
Confidence: 85% Duration: 386d
⇄
2025-04-02
New Transit
AS27391 AS27391 → added provider AS21947 AS21947
Confidence: 90%
⇄
2025-04-02
New Transit
AS27391 AS27391 → added provider AS852 AS852
Confidence: 90%
⇄
2025-04-02
New Transit
AS27391 AS27391 → added provider AS209 AS209
Confidence: 90%
⇄
2025-01-02
New Transit
AS27391 AS27391 → added provider AS21947 AS21947
Confidence: 90%
⇄
2025-01-02
New Transit
AS27391 AS27391 → added provider AS852 AS852
Confidence: 90%
⇄
2025-01-02
New Transit
AS27391 AS27391 → added provider AS209 AS209
Confidence: 90%
⇄

AS21947 Recent Events

View all →
2026-04-16
Lost Transit
AS21947 AS21947 → lost provider AS15305 AS15305
Confidence: 85% Duration: 469d
⇄
2026-03-26
Lost Transit
AS27391 AS27391 → lost provider AS21947 AS21947
Confidence: 85% Duration: 448d
⇄
2026-03-20
Lost Transit
AS27391 AS27391 → lost provider AS21947 AS21947
Confidence: 85% Duration: 442d
⇄
2026-02-15
Lost Transit
AS395251 AS395251 → lost provider AS21947 AS21947
Confidence: 85% Duration: 409d
⇄
2025-11-05
Lost Transit
AS1378 AS1378 → lost provider AS21947 AS21947
Confidence: 85% Duration: 307d
⇄
2025-10-09
Lost Transit
AS1378 AS1378 → lost provider AS21947 AS21947
Confidence: 85% Duration: 280d
⇄
2025-09-25
Lost Transit
AS1378 AS1378 → lost provider AS21947 AS21947
Confidence: 85% Duration: 266d
⇄
2025-09-19
New Transit
AS393630 AS393630 → added provider AS21947 AS21947
Confidence: 90%
⇄
2025-08-05
Lost Transit
AS393630 AS393630 → lost provider AS21947 AS21947
Confidence: 85% Duration: 188d
⇄
2025-08-05
Possible Trial
AS3807 AS3807 → possible trial with AS21947 AS21947
Confidence: 60%
⇄