CTC

AS18126 · Chubu Telecommunications Co.,Inc. Sakae 2-2-5, Naka-ku, Nagoya-shi,460-0008 Japan · JP · APNIC

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Upstream providers

Downstream customers

1.4m

v4 addresses

v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Addr family: All IPv4 IPv6

Provider	First Seen	Last Seen	Peers	AF
AS2914 AS2914	2024-09-01 1y 9mo	2026-06-09	82 peers AS6461 AS8218 AS12956 AS24516 AS61832 AS134823 AS199524	v4 v6
Vectant AS2519	2024-09-01 1y 9mo	2026-06-09	31 peers AS3549	v4 v6
AS2497 AS2497	2024-09-01 1y 9mo	2026-06-09	15 peers AS199524	v4 v6
AS2516 AS2516	2024-09-01 1y 9mo	2026-06-09	14 peers AS209 AS260 AS3257 AS5580	v4 v6

Customers (1)

Addr family: All IPv4 IPv6

Customer	Country	First Seen	Last Seen	IPs	Peers	Confidence	AF
SMG AS146985	JP	2024-09-01 1y 9mo	2026-06-09	512	14 peers AS3549 AS6461 AS8218 AS12956 AS24516 AS61832 AS134823 AS199524		v4 v6

Network Size

IPv4 and IPv6 prefixes originated over time

v4 prefixes

1.4m

v4 addresses

v6 prefixes

v6 /32s

Peering Links Over Time

Count of unclassified adjacencies per snapshot date

Event Log

All New Transit Lost Transit Possible Trial Renewal Approaching

2026-06-04

New Transit

CTC AS18126 → added provider Vectant AS2519

Confidence: 90%

⇄

2026-06-03

Lost Transit

CTC AS18126 → lost provider AS2497 AS2497

Confidence: 85% Duration: 639d

⇄

2026-06-03

Lost Transit

CTC AS18126 → lost provider TWELVE99 AS1299

Confidence: 85% Duration: 20d

⇄

2026-05-20

Lost Transit

CTC AS18126 → lost provider Vectant AS2519

Confidence: 85% Duration: 625d

⇄

2026-05-14

New Transit

CTC AS18126 → added provider TWELVE99 AS1299

Confidence: 90%

⇄

2026-04-04

New Transit

CTC AS18126 → added provider Vectant AS2519

Confidence: 90%

⇄

2026-03-26

Lost Transit

CTC AS18126 → lost provider Vectant AS2519

Confidence: 85% Duration: 570d

⇄

2026-02-02

New Transit

CTC AS18126 → added provider Vectant AS2519

Confidence: 90%

⇄

2026-01-04

Lost Transit

CTC AS18126 → lost provider Vectant AS2519

Confidence: 85% Duration: 489d

⇄

2025-12-07

New Transit

CTC AS18126 → added provider Vectant AS2519

Confidence: 90%

⇄

2025-11-20

Lost Transit

CTC AS18126 → lost provider Vectant AS2519

Confidence: 85% Duration: 444d

⇄

2025-07-09

Lost Transit

CTC AS18126 → lost provider AS2518 AS2518

Confidence: 85% Duration: 310d

⇄

2025-03-02

New Transit

CTC AS18126 → added provider AS2518 AS2518

Confidence: 90%

⇄

2025-02-07

Lost Transit

CTC AS18126 → lost provider AS2518 AS2518

Confidence: 85% Duration: 158d

⇄

2025-02-02

New Transit

CTC AS18126 → added provider AS2518 AS2518

Confidence: 90%

⇄

2025-01-06

Lost Transit

CTC AS18126 → lost provider AS2518 AS2518

Confidence: 85% Duration: 126d

⇄

2025-01-02

New Transit

CTC AS18126 → added provider AS2518 AS2518

Confidence: 90%

⇄

2024-12-09

Lost Transit

CTC AS18126 → lost provider AS2518 AS2518

Confidence: 85% Duration: 98d

⇄

2024-12-04

New Transit

CTC AS18126 → added provider AS2518 AS2518

Confidence: 90%

⇄

2024-10-11

Possible Trial

CTC AS18126 → possible trial with AS2518 AS2518

Confidence: 60%

⇄

2024-09-15

Lost Transit

CTC AS18126 → lost provider AS2518 AS2518

Confidence: 85% Duration: 13d

⇄

2024-09-02

New Transit

SMG AS146985 → added provider CTC AS18126

Confidence: 90%

⇄

2024-09-02

New Transit

CTC AS18126 → added provider AS2914 AS2914

Confidence: 90%

⇄

2024-09-02

New Transit

CTC AS18126 → added provider Vectant AS2519

Confidence: 90%

⇄

2024-09-02

New Transit

CTC AS18126 → added provider AS2518 AS2518

Confidence: 90%

⇄

2024-09-02

New Transit

CTC AS18126 → added provider AS2516 AS2516

Confidence: 90%

⇄

2024-09-02

New Transit

CTC AS18126 → added provider AS2497 AS2497

Confidence: 90%

⇄

Renewal Calendar

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

This data is available to subscribers.