Autonomous system
AS13370 NWF-LOCALTEL-ASN-1
Unclassified ARIN
Summary
Ziply Fiber
isp telecom business
Eighteen numbered blocks under one label, and every reverse name is the address with a domain glued on.
What it's used for
- A regional United States fibre and telephone provider. 63,744 addresses across nineteen IPv4 prefixes, two observed BGP neighbours, and the IPv6 block
2604:e00::/32.
Notable
- The netnames run
NWF-LOCALTEL-1throughNWF-LOCALTEL-18, with several numbers missing from the announced set. - The AS handle is
NWF-LOCALTEL-ASN-1, matching the netname series. - Sampled names read
66.172.104.0.nwinternet.com, the four octets in their normal order as separate labels. - Fifteen of eighteen sampled addresses answered, including ones ending in 0 and in 255.
Interesting
- Putting the address into the hostname in forward order is the opposite of what the reverse lookup system itself does, and it means each name sorts the same way the addresses do. Other providers build the same name backwards because that is the order the query arrives in.
- A numbered series reaching eighteen for a regional provider is eighteen separate trips to the registry, each one a growth step or an acquisition. The gaps are blocks held but not announced, or handed back.
- Two neighbours for sixty-three thousand addresses is a large access network with a very small connection to everyone else: all of these customers reach the internet through two doors.
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 |
|---|---|---|
| Seattle Internet Exchange | Seattle, United States | 206.81.80.173 |
Transit providers
1 upstream, 2 downstream and 4 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS20055 | Wholesail networks LLC | 1,146 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-19, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 19 prefixes · 63.74K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 20 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS13370- Registry name
- NWF-LOCALTEL-ASN-1
- Registrant
- Ziply Fiber
- Abuse contact
- DMCANotice@nwfbr.com
- Registered
- 1999-05-24
- Last changed
- 2025-02-26
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 100% valid · 20 valid, 0 with no ROA
- ROAs
- 20 authorising AS13370
- ASPA
- no ASPA record
- IRR
- 100% registered · 20 of 20 announcements
- Route objects
- 40 naming AS13370
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 1,783 prefixes, as published 2026-10-20. 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