Autonomous system
AS19635 SANDHILL-AS
Unclassified ARIN
Summary
Sandhill Telephone Cooperative
residential fiber cooperative rural
The AS handle SANDHILL-AS is operated by Sandhill Telephone Cooperative, Inc.
What it's used for
- The address space carries residential and business fiber services, as indicated by netnames such as
SANDHILL-BTV-1andSANDHILL-INTERNET. - With 21,760 IPv4 addresses announced across 43 prefixes and only 3 observed neighbours, the high address-to-neighbour ratio indicates an access network serving end-users rather than a transit provider.
Notable
- Registrants for the majority of prefixes are Sandhill Telephone Cooperative, Inc., though some blocks like
165.166.72.0/23and204.116.70.0/23list Spirit Communications as the registrant, suggesting historical acquisitions or leased space. - The inventory consists of a mix of /20, /21, /22, /23, and /24 blocks, with a single /32 IPv6 prefix.
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.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-21, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 43 prefixes · 21.76K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 43 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS19635- Registry name
- SANDHILL-AS
- Registrant
- Sandhill Telephone Cooperative, Inc.
- Abuse contact
- david.dube@mysandhill.net
- Registered
- 2017-09-05
- Last changed
- 2017-09-05
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 38% valid · 33 valid, 52 with no ROA 1 RPKI-invalid
- ROAs
- 33 authorising AS19635
- ASPA
- no ASPA record
- IRR
- 58% registered · 50 of 86 announcements 25 other origin
- Route objects
- 59 naming AS19635
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
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 1,779 prefixes, as published 2026-10-22. 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