AS23795 — FURUKAWA - Fitec Corp.

AS23795 announces 2 IPv4 prefixes covering 4,096 addresses and 0 IPv6 prefixes.

About this network

AS23795 is operated by FITEC Corporation, a Japanese IT services company spun off from Furukawa Electric.

What it's used for

• The address space is registered under the netname JPNIC-NET-JP-ERX with the Japan Network Information Center, indicating standard corporate allocation.
• The AS announces 4096 IPv4 addresses across 2 prefixes (158.202.40.0/21 and 158.202.152.0/21) and maintains 2 observed neighbours, a ratio consistent with an internal corporate estate rather than a transit or access provider.

Notable

• Registrants for both announced prefixes are listed as IRT-JPNIC-JP (Japan Network Information Center), which aligns with the AS holder's location and typical JPNIC allocation practices.
• FITEC Corporation was established in 1987 as the Information Systems Division of Furukawa Electric Co., Ltd., before becoming an independent entity focused on software development and network system maintenance.
• The inventory consists of two contiguous /21 blocks with no IPv6 prefixes announced, reflecting a focused IPv4-only corporate footprint.

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

Announced prefixes

• 158.202.40.0/21
• 158.202.152.0/21

Upstream networks

• AS4725 SoftBank Corp.
• AS10010 TOKAI Communications Corporation

Adjacent networks

• AS4725 SoftBank Corp.
• AS10010 TOKAI Communications Corporation

Routing security

• RPKI: 0 valid, 0 invalid and 6 not-found announcements; 0 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 6 route objects.
• Listed in as-sets: AS-17697ARCSTAR, AS-ANC, AS-BBX-PEERS, AS-GIGAINFRA, AS-IIJ, AS-IIJ6, AS-INFOSPHERE, AS-INFOSPHERE-V6, AS-KDD, AS-KDDI6, AS-MESH-CUSTOMER:AS10010, AS-OCN, AS-OCN, AS-ODN, AS-PACNET, AS-PACNET-CUSTOMER-PROXY-REGISTER, AS-TELSTRA-INTL-CUSTOMERS, AS-TELSTRA-INTL-CUSTOMERS-4637, AS-TOKAI, AS-XO-B, AS2497:AS-IIJ, AS2497:AS-IIJ6, AS3491:AS-CUSTOMERS-AP.