Compare Networks

Comparing AS40521 and AS3257 — change

AS40521

US · ARIN

Providers

Customers

Explorer →

GTT-BACKBONE

AS3257 · GTT

US · RIPENCC

Tier-1

Providers

1804

Customers

Explorer →

Customer Count Over Time

Originated Address Space Over Time

IPv4 Addresses

IPv6 /32s

Prefix Count Over Time

IPv4 Prefixes

IPv6 Prefixes

Peering Count Over Time

AS40521 Providers

AS174
AS174

AS3257 Providers

No providers.

AS40521 Recent Events

View all →

2026-03-29

Lost Transit

AS40521 AS40521 → lost provider GTT-BACKBONE AS3257

Confidence: 85% Duration: 543d

⇄

2026-03-24

New Transit

AS40521 AS40521 → added provider AS174 AS174

Confidence: 90%

⇄

2026-03-22

Lost Transit

AS40521 AS40521 → lost provider GTT-BACKBONE AS3257

Confidence: 85% Duration: 536d

⇄

2026-03-11

Possible Trial

AS40521 AS40521 → possible trial with AS174 AS174

Confidence: 60% Duration: 12d

⇄

2026-02-08

Lost Transit

AS40521 AS40521 → lost provider AS174 AS174

Confidence: 85% Duration: 20d

⇄

2026-01-31

New Transit

AS40521 AS40521 → added provider AS174 AS174

Confidence: 90%

⇄

2024-11-02

New Transit

AS40521 AS40521 → added provider GTT-BACKBONE AS3257

Confidence: 90%

⇄

AS3257 Recent Events

View all →

2026-05-03

New Transit

AS21564 AS21564 → added provider GTT-BACKBONE AS3257

Confidence: 90%

⇄

2026-05-02

New Transit

DATAFOREST AS58212 → added provider GTT-BACKBONE AS3257

Confidence: 90%

⇄

2026-05-02

New Transit

SECURITAS-DE AS48145 → added provider GTT-BACKBONE AS3257

Confidence: 90%

⇄

2026-05-01

New Transit

TELEDATA AS43545 → added provider GTT-BACKBONE AS3257

Confidence: 90%

⇄

2026-05-01

Lost Transit

AS36776 AS36776 → lost provider GTT-BACKBONE AS3257

Confidence: 85% Duration: 576d

⇄

2026-05-01

Lost Transit

PR-TELECOM-AS AS35311 → lost provider GTT-BACKBONE AS3257

Confidence: 85% Duration: 576d

⇄

2026-05-01

New Transit

AS33494 AS33494 → added provider GTT-BACKBONE AS3257

Confidence: 90%

⇄

2026-05-01

Lost Transit

AS30366 AS30366 → lost provider GTT-BACKBONE AS3257

Confidence: 85% Duration: 576d

⇄

2026-05-01

New Transit

AS1426 AS1426 → added provider GTT-BACKBONE AS3257

Confidence: 90%

⇄

2026-04-30

Lost Transit

provide AS209549 → lost provider GTT-BACKBONE AS3257

Confidence: 85% Duration: 575d

⇄