AS7670 — CTNET Enecom,Inc.

AS7670 announces 19 IPv4 prefixes covering 134,656 addresses and 1 IPv6 prefixes.

About this network

CTNET is Enecom, Inc., the telecoms and systems subsidiary of the Chugoku Electric Power group, covering the Chugoku region of western Japan (Hiroshima, Okayama, Shimane, Tottori, Yamaguchi). The handle preserves its founding name, Chugoku Telecommunication Network, from 1992.

What it's used for

• About 135,000 addresses across nineteen prefixes, plus 2001:2a8::/32. Enecom sells the MEGA EGG consumer fibre service and also resells access over NTT's FLET'S plant.
• Reverse DNS is dominated by sequentially numbered subscriber pools on regional ISP and cable-TV brands the company serves: mysNNNNNNNNNNNN.pionet.ne.jp, NNN-NN-NNN-N.okuizumo.ne.jp, NNNNNN.torichu.ne.jp. That is access-network addressing, not backbone or hosting.

Notable

• An eyeball network. A useful detail for geolocation: much of the space sits behind small local operators — municipal and community cable-TV internet services in the Chugoku prefectures — for whom Enecom supplies the addresses and the upstream. The user is a household in rural Shimane or Tottori, even where the AS name says "electric power company".

Interesting

• Enecom reached its present shape by absorption: the 1992 leased-line carrier merged with a Chugoku Electric IT services firm in 2003, and it also inherited the customer base of Urban Internet, an independent ISP from the dial-up era.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 27.96.68.0/22
• 61.122.0.0/22
• 61.125.160.0/20
• 61.213.240.0/20
• 103.39.192.0/22
• 103.152.230.0/23
• 121.58.176.0/21
• 133.117.96.0/21
• 160.192.0.0/16
• 202.25.192.0/20
• 202.86.120.0/21
• 202.246.244.0/22
• 210.166.32.0/19
• 210.235.32.0/22
• 210.236.0.0/19
• 210.253.32.0/19
• 211.1.128.0/19
• 211.12.224.0/19
• 219.118.32.0/20
• 2001:2a8::/32

Upstream networks

• AS2914 NTT America, Inc.
• AS2497 Internet Initiative Japan Inc.
• AS6939 Hurricane Electric LLC
• AS4637 Telstra Global
• AS2516 KDDI CORPORATION
• AS2519 ARTERIA Networks Corporation
• AS24482 SG.GS
• AS17639 Converge ICT Solutions Inc.

Downstream networks

• AS24251 Iwakuni Cable Network Corporation
• AS18144 Enecom,Inc.
• AS55381 CITY-CABLE SHUNAN Corporation
• AS63775 YAKAGE CABLE TELEVISION
• AS37908 KIBI Cable Television Co.,Ltd.
• AS131907 Iwami Cablevision Co.,Ltd.
• AS18272 Benesse Corporation
• AS146976 Kvision Co.,Ltd.
• AS9374 EDION Corporation
• AS18077 Yamaguchi Cable Vision Co.,Ltd
• AS18124 Okayama University of Science
• AS23786 San-in Cable Vision CO.,LTD
• AS131928 Tottori Teletopia Co., Ltd.
• AS9991 Hiroshima Shudo University
• AS23618 Ibara Broadcasting Company
• AS17691 NDS Co., Ltd.
• AS55382 Nagato city office
• AS23775 Tamashima TV Inc.

Adjacent networks

• AS2497 Internet Initiative Japan Inc.
• AS2914 NTT America, Inc.
• AS24251 Iwakuni Cable Network Corporation
• AS18144 Enecom,Inc.
• AS2516 KDDI CORPORATION
• AS4637 Telstra Global
• AS6939 Hurricane Electric LLC
• AS2519 ARTERIA Networks Corporation
• AS55381 CITY-CABLE SHUNAN Corporation
• AS63775 YAKAGE CABLE TELEVISION
• AS37908 KIBI Cable Television Co.,Ltd.
• AS131907 Iwami Cablevision Co.,Ltd.
• AS18272 Benesse Corporation
• AS146976 Kvision Co.,Ltd.
• AS9374 EDION Corporation
• AS18077 Yamaguchi Cable Vision Co.,Ltd
• AS24482 SG.GS
• AS18124 Okayama University of Science
• AS23786 San-in Cable Vision CO.,LTD
• AS131928 Tottori Teletopia Co., Ltd.
• AS17639 Converge ICT Solutions Inc.
• AS9991 Hiroshima Shudo University
• AS23618 Ibara Broadcasting Company
• AS17691 NDS Co., Ltd.
• AS55382 Nagato city office

Internet exchanges

• BroadBand Internet eXchange Tokyo — Tokyo, Japan
• JPIX Tokyo — Tokyo, Japan
• BroadBand Internet eXchange Singapore — Singapore, Singapore
• BroadBand Internet eXchange Osaka — Osaka, Japan
• JPIX Osaka — Osaka, Japan
• BroadBand Internet eXchange Hong Kong — Hong Kong, China
• Equinix Internet Exchange Osaka — Osaka, Japan