Autonomous system
AS11789 SURFAIRWIRELESS-IN-03
Residential ARIN
Summary
Surf Air Wireless, LLC
isp legacy
SURFAIRWIRELESS-IN-03 belongs to Surf Air Wireless, LLC, a fixed-wireless internet provider based in LaPorte, Indiana. ARIN registered the AS to the company in 2018, so this is recycled space rather than an early-internet allocation — the -IN-03 suffix reads as the operator's own Indiana site numbering.
What it's used for
Surf Air is a regional eyeball network. It sells residential and small-business wireless broadband, along with VoIP and TV, across a contiguous footprint in northwest Indiana, northeast Illinois and southwest Michigan, and it grew by acquisition — a large infrastructure investment in 2019 alongside the purchase of another regional wireless ISP. That is the whole of the business: there is no hosting or wholesale arm behind this AS number.
The routing matches. RIS sees 14 IPv4 prefixes totalling 4,608 addresses and no IPv6, announced through a single observed neighbour. One upstream and a few thousand addresses is a small last-mile operator, not a carrier; a transit network of any kind would show peers in the hundreds. Every announced prefix that resolves in ARIN — the 147.129 blocks and a pair of 23.145 /24s — comes back to Surf Air Wireless itself, with no third-party registrants anywhere in the inventory.
Notable
Most of the address space is carved out of a single /20 and /21 inside 147.129.0.0/16, deaggregated down to /23s and /24s. Splitting a contiguous block that finely on one upstream usually reflects internal tower-and-market segmentation, not traffic engineering.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS13428 | Surf Air Wireless, LLC | 75 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 512 addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 1 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS11789- Registry name
- SURFAIRWIRELESS-IN-03
- Registrant
- Surf Air Wireless, LLC
- Abuse contact
- abuse@surfairwireless.us
- Registered
- 2018-07-31
- Last changed
- 2021-07-01
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 10 with no ROA
- ROAs
- 0 authorising AS11789
- ASPA
- no ASPA record
- IRR
- 100% registered · 10 of 10 announcements
- Route objects
- 1 naming AS11789
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: 448 networks and 1,851 prefixes, as published 2026-10-29. 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