AS18596 Madison Telephone Company 🇺🇸 US
Announcing 9 prefixes, seen at the RIS collectors.
IPv4 prefixes
8
16,384 (64 × /24)
IPv6 prefixes
1
1 × /32
Upstreams
2
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
1
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS18596
- Name
- Madison Telephone Company
- Organisation
- Madison Communications, Inc.
- Country
- 🇺🇸 US
- RIR
- ARIN
- Allocated
- 2000-09-18
- Network type
- Cable/DSL/ISP
- Traffic levels
- 20-50Gbps
- Scope
- Regional
- Peering policy
- Restrictive
- IRR as-set
- AS18596
- PeeringDB
- net/7402
- Exchanges
- 1
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
9 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 66.242.192.0/19 v4 | no ROA | 48 | 693918596 | 2026-09-18 |
| 66.242.192.0/24 v4 | no ROA | 47 | 693918596 | 2026-09-18 |
| 66.242.208.0/22 v4 | no ROA | 48 | 693918596 | 2026-09-18 |
| 66.242.214.0/23 v4 | no ROA | 48 | 693918596 | 2026-09-18 |
| 66.242.221.0/24 v4 | no ROA | 41 | 3454917418596 | 2026-09-18 |
| 76.77.224.0/20 v4 | no ROA | 48 | 693918596 | 2026-09-18 |
| 76.77.232.0/22 v4 | no ROA | 48 | 693918596 | 2026-09-18 |
| 76.77.236.0/22 v4 | no ROA | 41 | 3454917418596 | 2026-09-18 |
| 2605:1680::/32 v6 | no ROA | 35 | 37721693918596 | 2026-09-18 |