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Autonomous System

AS10367

Fibercast Corporation

Announced IPs
16,639
CIDR prefixes
24
ASN
AS10367

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

58/100
Caution
How this score is built

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 6 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS10367 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

PrefixOrigin ASNsLast detected (UTC)
216.177.9.0/24 AS10367, AS63009 2026-07-18 11:22:44
216.177.30.0/24 AS10367, AS63009 2026-07-18 11:22:44
216.177.0.0/19 AS10367, AS63009 2026-07-18 11:22:44
216.177.1.0/24 AS10367, AS63009 2026-07-18 11:22:44
216.177.27.0/24 AS10367, AS63009 2026-07-18 11:22:44
216.177.2.0/24 AS10367, AS63009 2026-07-17 19:22:38

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Geographic scope Regional
Traffic ratio Mostly Inbound
Peering policy Open
IRR record ARIN::AS-CAVNET

Present at 2 internet exchanges: Boston Internet Exchange, MASS-IX: ISP Peering LAN

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
66.211.128.0/20 4.1K
97.1%
Fibercast Corporation US New Hampshire Manchester
216.177.0.0/20 4.1K
0.0%
US New Hampshire Stoddard
66.211.144.0/21 2.0K
95.3%
Fibercast Corporation US
216.177.0.0/21 2.0K
37.3%
Fibercast Corporation US New Hampshire Stoddard
216.177.24.0/21 2.0K
69.0%
Fibercast Corporation US
66.211.156.0/22 1.0K
93.7%
Fibercast Corporation US
216.177.8.0/22 1.0K
67.1%
Fibercast Corporation US Vermont Canaan
216.177.16.0/22 1.0K
68.3%
Fibercast Corporation US
66.211.154.0/23 512
93.9%
Fibercast Corporation US
216.177.14.0/23 512
68.6%
Fibercast Corporation US New Hampshire Stoddard
216.177.22.0/23 512
38.9%
Fibercast Corporation US
66.211.152.0/24 256
95.3%
Fibercast Corporation US
199.201.159.0/24 256
0.0%
Fibercast Corporation US
199.204.199.0/24 256
0.0%
US
208.89.156.0/24 256
73.0%
Fibercast Corporation US
208.89.158.0/24 256
2.0%
Fibercast Corporation US
216.177.12.0/24 256
68.8%
Fibercast Corporation US New Hampshire Stoddard
216.177.20.0/24 256
53.1%
Fibercast Corporation US
216.177.13.0/25 128
69.5%
Fibercast Corporation US New Hampshire Stoddard
216.177.13.128/26 64
68.8%
Fibercast Corporation US New Hampshire Stoddard
216.177.13.192/27 32
68.8%
Fibercast Corporation US New Hampshire Stoddard
216.177.13.240/28 16
68.8%
Fibercast Corporation US New Hampshire Stoddard
216.177.13.232/29 8
75.0%
Fibercast Corporation US New Hampshire Stoddard
216.177.13.224/30 4
75.0%
Fibercast Corporation US New Hampshire Stoddard
216.177.13.228/31 2
50.0%
Fibercast Corporation US New Hampshire Stoddard
216.177.13.231/32 1
100.0%
Fibercast Corporation US New Hampshire Stoddard

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS10367 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
216.177.27.0/24 32,877 2026-07-18 10:52:24
216.177.5.0/24 18,399 2026-07-18 10:52:24
216.177.26.0/24 16,546 2026-07-18 10:52:24
216.177.23.0/24 15,580 2026-07-18 10:52:24
216.177.31.0/24 14,087 2026-07-18 10:52:24
199.201.159.0/24 13,821 2026-07-18 10:52:41
216.177.8.0/24 13,434 2026-07-18 10:52:24
216.177.22.0/24 13,320 2026-07-18 10:52:24
216.177.0.0/19 13,314 2026-07-18 10:52:52
216.177.4.0/24 12,400 2026-07-18 10:52:24
216.177.20.0/24 11,936 2026-07-18 10:52:24
216.177.25.0/24 11,914 2026-07-18 10:52:24
216.177.28.0/24 11,849 2026-07-18 10:52:57
216.177.2.0/24 10,068 2026-07-18 10:52:24
216.177.29.0/24 10,024 2026-07-18 10:52:24
216.177.9.0/24 9,557 2026-07-18 10:52:24
216.177.30.0/24 8,197 2026-07-18 10:52:24
216.177.1.0/24 8,175 2026-07-18 10:52:52
216.177.24.0/24 7,984 2026-07-18 10:52:24
66.211.144.0/20 5,398 2026-07-18 10:52:23
66.211.128.0/20 5,161 2026-07-18 10:52:23
216.177.0.0/24 3,481 2026-07-18 10:52:52
216.177.11.0/24 3,468 2026-07-18 10:52:24
216.177.14.0/24 3,465 2026-07-18 10:52:52
216.177.6.0/24 3,463 2026-07-18 10:52:52
216.177.13.0/24 3,394 2026-07-18 10:52:57
208.89.158.0/24 3,351 2026-07-18 10:52:57
208.89.156.0/24 3,301 2026-07-18 10:52:57
216.177.12.0/24 3,299 2026-07-18 10:52:57
199.204.199.0/24 616 2026-07-18 04:13:32

Frequently Asked Questions

What is AS10367?

AS10367 is an Autonomous System Number assigned to Fibercast Corporation. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS10367 announce?

AS10367 announces 16.6K IPv4 addresses distributed across 24 routed CIDR prefixes. The network is registered in United States.

Who operates AS10367?

AS10367 is operated by Fibercast Corporation. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS10367 registered in?

AS10367 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-18 11:25:31 UTC
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