SINN-DEVELOPMENT-LTD

AS401167 · Sinn Development Ltd. · CA · ARIN

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1

Upstream providers

0

Downstream customers

256

v4 addresses

<0.1

v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Addr family: All IPv4 IPv6

Provider	First Seen	Last Seen	Peers	Confidence	AF
AS-MCCL-01 AS29953	2025-06-05 1y	2026-06-09	28 peers AS174 AS209 AS1299 AS2914 AS3257 AS3549 AS4128 AS5580 AS6082 AS8582 AS15562 AS16276 AS17290 AS25160 AS52468 AS55720 AS199524 AS212271 AS328840 AS398465		v4 v6

Customers (0)

Addr family: All IPv4 IPv6

No customers in current snapshot.

Network Size

IPv4 and IPv6 prefixes originated over time

1

v4 prefixes

256

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

2025-11-10

Lost Transit

SINN-DEVELOPMENT-LTD AS401167 → lost provider AS397570 AS397570

Confidence: 85% Duration: 128d

⇄

2025-08-10

New Transit

SINN-DEVELOPMENT-LTD AS401167 → added provider AS397570 AS397570

Confidence: 90%

⇄

2025-07-27

Lost Transit

SINN-DEVELOPMENT-LTD AS401167 → lost provider AS397570 AS397570

Confidence: 85% Duration: 22d

⇄

2025-07-18

New Transit

SINN-DEVELOPMENT-LTD AS401167 → added provider AS397570 AS397570

Confidence: 90%

⇄

2025-07-05

Lost Transit

SINN-DEVELOPMENT-LTD AS401167 → lost provider AS397570 AS397570

Confidence: 85%

⇄

2025-06-06

New Transit

SINN-DEVELOPMENT-LTD AS401167 → added provider AS-MCCL-01 AS29953

Confidence: 90%

⇄

Renewal Calendar

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

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