Autonomous system
AS4150 SUPRANET-WIS
Residential ARIN
Summary
SupraNet Communications
isp legacy
SUPRANET-WIS is SupraNet Communications, Inc., an independent internet service provider based in Madison, Wisconsin, serving businesses across southern Wisconsin.
What it's used for
- Fiber and fixed-wireless internet access for business customers in the Madison area, plus colocation and hosting services.
- Bulk internet for multi-dwelling units, so a slice of the space reaches residential apartment users.
Notable
- SupraNet was founded in 1994, the same era its AS number and address space were registered, making this a rare case where a low ASN still sits with the small regional operator that originally took it.
- The footprint is modest (a few dozen /24s), which is typical of a single-metro independent ISP rather than a national carrier.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 8 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Seattle Internet Exchange | Seattle, United States | 206.81.80.166 |
| Equinix Internet Exchange Chicago | Chicago, United States | 208.115.136.186 |
| Fremont Cabal Internet Exchange | Fremont, United States | 206.80.238.124 |
| Midwest Internet Cooperative Exchange | Minneapolis, United States | 206.108.255.27 |
| Interconnection eXchange Denver | Denver, United States | 206.53.175.225 |
| Kansas City Internet Exchange | Kansas City, United States | 206.51.7.119 |
| Quad Cities Internet Exchange | Davenport, United States | 206.83.43.36 |
| Milwaukee Internet Exchange | Milwaukee, United States | 204.107.122.13 |
Transit providers
9 upstream, 1 downstream and 14 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 13 prefixes · 17.15K addresses IPv6 9 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 22 |
Registry
Allocation record
- Registry
- ARIN
- Registered
- 1994-12-15
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 11 valid, 0 with no ROA
- ROAs
- 9 authorising AS4150
- ASPA
- no ASPA record
- IRR
- 100% registered · 11 of 11 announcements
- Route objects
- 16 naming AS4150
Reputation
Classification and threat
Residential Fixed-line consumer ISP. Addresses here are homes.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,775 prefixes, as published 2026-10-11. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere