Autonomous system
AS13765 NEDELCO
Unclassified ARIN
Summary
Nedelco
isp telecom business
Three company names for one network, and reverse records that put the address in front of the domain with its dots intact.
What it's used for
- A rural telephone and internet provider. 14,336 addresses across four IPv4 prefixes, the IPv6 block
2606:4900::/32, and eleven observed BGP neighbours.
Notable
- The AS is held by one company, every block is registered to a second, and one block's netname and reverse zone name a third.
- Most addresses answer as
66.196.59.254.dynamic.hamilton.net, the address in dotted form with a domain appended. - One block answers as
207-68-212-0.nctc.net, hyphenated and under the third name. - Netnames run
HAMILTON-INTERNET,HAMILTONandNCTCNET. - Twelve addresses were queried for reverse DNS and seven returned a name.
Interesting
- Leaving the dots in the address makes the hostname read as an address with a suffix, which is unusual because dots are what separate DNS labels. Each octet becomes its own label, so the name is four levels deeper than the hyphenated form and points at the same thing.
- Marking those addresses as dynamic in the name tells any receiving system how much to trust them, which is the same signal a mail server would look for.
- One block using an entirely different brand in both the registry and the DNS is a merged network that was never renamed. The hyphenated scheme came with it.
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 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Interconnection eXchange Denver | Denver, United States | 206.53.175.66 |
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 4 prefixes · 14.34K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 5 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS13765- Registry name
- NEDELCO
- Registrant
- Nedelco Inc.
- Abuse contact
- Wayne@hamilton.net
- Registered
- 1999-08-13
- Last changed
- 2012-03-02
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 5 valid, 0 with no ROA
- ROAs
- 5 authorising AS13765
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 9 naming AS13765
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: 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