Autonomous system
AS10367 FIBERCAST
Residential ARIN
Summary
FiberCast
residential broadband fttp cable new-hampshire
FIBERCAST is FiberCast Corporation, a New Hampshire ISP and cable operator founded in 1993 (originally as Global Information) and headquartered in Manchester. It is the local internet, TV and voice provider for the far north of the state — Colebrook, Pittsburg, Stewartstown, Stratford, Columbia — and parts of Vermont.
What it's used for
- Residential and small-business broadband: fiber-to-the-home, cable/HFC internet, and TV and voice services across rural northern New England.
- The reverse DNS reads as a subscriber access network end to end.
5.28.customer.FiberCast.net,5.25.hsd.fibercast.net(hsd = high-speed data, the standard cable-industry label for internet subscribers) and5.30.pon.FiberCast.net/5.12.sdd.pon.fibercast.net(PON = passive optical network, i.e. FTTH) are exactly the naming an eyeball ISP puts on customer space.
Notable
- Eyeball ISP, not carrier or hosting. RIS sees 30 IPv4 prefixes / 17,408 addresses announced with 4 observed BGP neighbours. Four neighbours means FiberCast buys transit; it does not sell it. The many
/24s carved out of216.177.0.0/19are per-town and per-technology serving areas, which is how a small operator segments an access network.
Interesting
- Some space in the AS answers under
firstlight.netandg4.net— Northeast regional carriers. This is a good illustration of the rule that rDNS shows what the space carries, not who holds it: those names reflect FiberCast's carrier relationships and acquired assets, not a change of ownership of the AS.
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 |
|---|---|---|
| Boston Internet Exchange | Boston, United States | 206.108.236.21 |
| Massachusetts Internet Exchange | Boston, United States | 206.53.143.80 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 22 prefixes · 14.08K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| US | United States of America | 22 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS10367- Registry name
- FIBERCAST
- Registrant
- Fibercast Corporation
- Abuse contact
- abuse@fibercast.net
- Registered
- 1997-07-14
- Last changed
- 2019-02-19
- Allocation
- assigned
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 33 with no ROA
- ROAs
- 0 authorising AS10367
- ASPA
- no ASPA record
- IRR
- 82% registered · 27 of 33 announcements 1 other origin
- Route objects
- 38 naming AS10367
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: 432 networks and 1,768 prefixes, as published 2026-10-12. 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