AS2497
Internet Initiative Japan Inc.
Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Active-threat / abuse risk −12
- Isp allocation +5
- Trust score 58 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
About Internet Initiative Japan
Internet Initiative Japan is a Japanese telecommunications company. Founded by Koichi Suzuki in 1992, it is Japan’s first Internet service provider (ISP).
⚠ 1 MOAS prefix — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS2497 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.
| Prefix | Origin ASNs | Last detected (UTC) |
|---|---|---|
| 104.165.202.0/24 | AS2497, AS396356 | 2026-11-13 04:24:06 |
Network profile
Source: PeeringDB →Present at 15 internet exchanges: Equinix Ashburn, Equinix Los Angeles, Equinix San Jose, Equinix New York, NYIIX New York, DIX-IE, JPNAP Osaka, LINX LON1: Main, SIX Seattle: MTU 1500, Equinix Singapore, …
AS2497 — global IP footprint
Cities where AS2497 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS2497 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 121.50.160.0/21 | 22,539 | 2026-11-13 04:13:06 |
| 202.22.208.0/20 | 22,058 | 2026-11-13 04:13:06 |
| 150.61.55.0/24 | 15,606 | 2026-11-13 04:13:06 |
| 150.61.54.0/24 | 15,606 | 2026-11-13 04:13:06 |
| 150.61.5.0/24 | 15,552 | 2026-11-13 04:13:11 |
| 61.124.0.0/20 | 15,025 | 2026-11-13 04:13:50 |
| 103.5.23.0/24 | 14,734 | 2026-11-13 04:13:11 |
| 103.140.136.0/23 | 14,707 | 2026-11-13 04:13:50 |
| 202.214.0.0/16 | 14,686 | 2026-11-13 04:13:22 |
| 133.183.96.0/21 | 14,677 | 2026-11-13 04:13:06 |
| 133.183.106.0/24 | 14,626 | 2026-11-13 04:13:06 |
| 133.183.128.0/19 | 14,604 | 2026-11-13 04:13:50 |
| 133.194.252.0/23 | 14,598 | 2026-11-13 04:13:11 |
| 133.254.130.0/24 | 14,579 | 2026-11-13 04:14:02 |
| 133.254.131.0/24 | 14,556 | 2026-11-13 04:14:02 |
| 14.137.243.0/24 | 14,542 | 2026-11-13 04:13:50 |
| 133.194.224.0/20 | 14,490 | 2026-11-13 04:13:11 |
| 133.194.254.0/24 | 14,488 | 2026-11-13 04:13:11 |
| 23.183.56.0/24 | 14,476 | 2026-11-13 04:13:50 |
| 133.254.0.0/16 | 14,465 | 2026-11-13 04:13:11 |
| 133.194.248.0/22 | 14,463 | 2026-11-13 04:13:11 |
| 139.152.15.0/24 | 14,462 | 2026-11-13 04:13:50 |
| 133.194.240.0/21 | 14,450 | 2026-11-13 04:13:11 |
| 133.194.192.0/19 | 14,450 | 2026-11-13 04:13:06 |
| 139.152.13.0/24 | 14,446 | 2026-11-13 04:13:50 |
| 131.248.0.0/16 | 14,445 | 2026-11-13 04:13:11 |
| 139.152.11.0/24 | 14,426 | 2026-11-13 04:13:50 |
| 133.194.0.0/17 | 14,403 | 2026-11-13 04:13:22 |
| 139.152.0.0/16 | 14,396 | 2026-11-13 04:13:50 |
| 139.152.14.0/24 | 14,381 | 2026-11-13 04:13:50 |
| 133.127.0.0/16 | 14,369 | 2026-11-13 04:13:11 |
| 150.90.0.0/16 | 14,369 | 2026-11-13 04:13:50 |
| 133.194.128.0/18 | 14,367 | 2026-11-13 04:13:06 |
| 61.122.224.0/20 | 14,348 | 2026-11-13 04:13:06 |
| 160.17.0.0/16 | 14,330 | 2026-11-13 04:13:50 |
| 133.173.128.0/17 | 14,277 | 2026-11-13 04:13:22 |
| 133.215.0.0/16 | 14,267 | 2026-11-13 04:13:50 |
| 182.54.240.0/22 | 14,234 | 2026-11-13 04:13:22 |
| 143.94.217.0/24 | 14,231 | 2026-11-13 04:13:06 |
| 202.15.44.0/23 | 14,207 | 2026-11-13 04:13:50 |
| 150.23.0.0/16 | 14,197 | 2026-11-13 04:13:50 |
| 163.55.0.0/16 | 14,183 | 2026-11-13 04:13:22 |
| 14.137.235.0/24 | 14,131 | 2026-11-13 04:13:50 |
| 133.173.0.0/16 | 14,127 | 2026-11-13 04:13:06 |
| 133.173.0.0/17 | 14,114 | 2026-11-13 04:13:06 |
| 23.131.136.0/24 | 14,109 | 2026-11-13 04:13:22 |
| 210.148.0.0/16 | 14,030 | 2026-11-13 04:13:22 |
| 23.159.40.0/24 | 14,000 | 2026-11-13 04:13:06 |
| 202.19.224.0/21 | 13,969 | 2026-11-13 04:13:11 |
| 210.141.16.0/20 | 13,956 | 2026-11-13 04:13:50 |
Showing top 50 of 258 announced prefixes by sample volume.
Frequently Asked Questions
What is AS2497?
AS2497 is an Autonomous System Number assigned to Internet Initiative Japan Inc.. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS2497 announce?
AS2497 announces 4.09M IPv4 addresses distributed across 222 routed CIDR prefixes. The network is registered in Japan.
Who operates AS2497?
AS2497 is operated by Internet Initiative Japan Inc.. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.
What country is AS2497 registered in?
AS2497 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
