Autonomous system
AS11191 CALNET
Residential ARIN
Summary
Cal.net, Inc.
isp legacy
CALNET is Cal.net, Inc., a Northern and Central California broadband provider. It is a fixed-wireless and fibre ISP serving rural and underserved communities in the Sierra foothills and the Central Valley, and it has grown by absorbing other small local providers.
What it's used for
Consumer and small-business internet access. RIS observes 78 IPv4 prefixes and about 27,648 addresses, no IPv6, and 11 BGP neighbours — a modest peering estate consistent with an eyeball network buying transit in several places, not a wholesale carrier.
The reverse DNS is the giveaway and it is unusually informative, because it names the brands Cal.net has acquired rather than just Cal.net: host-216-57-64-5-cal.net and host-208-91-4-5.cust.cal.net, alongside ip-69-80-248-5.wireless.static.fire2wire.com, son-72-4-176-5.dsl.mlode.com (Mother Lode Internet) and son-216-86-184-5.static.knxs.net. Fixed-wireless subscriber pools, DSL pools, and static customer assignments — all end-user access, under several legacy ISP names.
Notable
The prefix registrants look scattered at first glance and are worth reading carefully. Most blocks are registered to Cal.net's own ARIN handles (CAL-NET-INC-0 through -11), but some are not: 38.133.104.0/21 is Cogent space, 67.118.192.0/21 is legacy SBC/AT&T space, and 52.129.41.0/24 is registered to WBL-25 — Winters Broadband, one of the small ISPs pulled into the Cal.net group.
That combination — provider-assigned blocks from upstreams plus blocks still registered to acquired companies — is what a genuinely acquisitive regional ISP looks like. It is superficially similar to the address-broker pattern, but the discriminator holds: the rDNS is first-party across every brand, and every named registrant is a real, findable California ISP rather than a shell.
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 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Equinix Internet Exchange San Jose (Bay Area) | San Jose, United States | 206.223.117.94 |
| Equinix IBX Secaucus | Secaucus, United States | 206.223.117.94 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 24 prefixes · 27.65K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 24 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11191- Registry name
- CALNET
- Registrant
- Cal.net, Inc.
- Abuse contact
- abuse@corp.cal.net
- Registered
- 1998-05-12
- Last changed
- 2025-02-28
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 78 with no ROA
- ROAs
- 0 authorising AS11191
- ASPA
- no ASPA record
- IRR
- 100% registered · 78 of 78 announcements
- Route objects
- 80 naming AS11191
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: 442 networks and 1,773 prefixes, as published 2026-10-13. 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