Sistema Autônomo

AS21547

FirstLight Fiber, Inc.

FirstLight Fiber, Inc. United States 🌐 firstlight.net

IPs Anunciados

68,352

Prefixos CIDR

ASN

AS21547

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

Baseline (neutral) 65
Multiple-origin (MOAS) routing anomaly −12
Isp allocation +5
Trust score 58 / 100

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 3 Prefixo MOASes — múltiplos ASNs de origem detectados

Todas as anomalias MOAS →

Um prefixo anteriormente estável originado por AS21547 é agora também anunciado por outro ASN (MOAS — Multiple-Origin AS), detectado a partir de nossos coletores RIPE RIS. Frequentemente benigno (anycast, multi-homing ou uma transferência recente) — mas pode sinalizar um vazamento de rota ou sequestro de prefixo, então vale a pena inspecionar.

Prefixo	ASNs de Origem	Última detecção (UTC)
198.212.226.0/23	AS21547, AS397779	2026-07-25 16:08:58
198.212.225.0/24	AS21547, AS397779	2026-07-25 16:08:58
206.147.101.0/24	AS21547, AS40160	2026-07-25 08:08:55

Network profile

Source: PeeringDB →

Geographic scope Not Disclosed

Traffic ratio Not Disclosed

Peering policy Open

IRR record AS21547:AS-ALL

Website ↗

AS21547 — pegada global de IP

Cidades onde AS21547 possui alocação IPv4 mensurável. Clique em qualquer ponto para abrir a página daquela cidade. O tamanho e a cor escalam com a contagem de IP.

Ver no globo 3D →

Principais intervalos CIDR

CIDR	IPs	PTR Density	Organização	País	State	City
64.140.192.0/20	4.1K	83.3%	FirstLight Fiber, Inc.	US	New Hampshire	Exeter
64.140.224.0/20	4.1K	88.8%	FirstLight Fiber, Inc.	US	New Hampshire	Rochester
69.49.128.0/20	4.1K	92.9%	FirstLight Fiber, Inc.	US	Maine	Bethel
69.168.0.0/20	4.1K	97.3%	FirstLight Fiber, Inc.	US	New Hampshire	Portsmouth
72.12.64.0/20	4.1K	94.1%	FirstLight Fiber, Inc.	US	Maine	Bethel
74.220.224.0/20	4.1K	91.3%	FirstLight Fiber, Inc.	US	New Hampshire	Newmarket
63.127.192.0/21	2.0K	0.0%	FirstLight Fiber, Inc.	US	—	—
64.140.216.0/21	2.0K	64.9%	FirstLight Fiber, Inc.	US	—	—
64.140.248.0/21	2.0K	86.7%	FirstLight Fiber, Inc.	US	New Hampshire	Portsmouth
66.186.168.0/21	2.0K	76.5%	FirstLight Fiber, Inc.	US	Maine	Norway
66.186.184.0/21	2.0K	86.8%	FirstLight Fiber, Inc.	US	Maine	Buckfield
66.231.208.0/21	2.0K	89.6%	FirstLight Fiber, Inc.	US	—	—
69.49.144.0/21	2.0K	68.8%	FirstLight Fiber, Inc.	US	Maine	Turner
72.12.88.0/21	2.0K	91.7%	FirstLight Fiber, Inc.	US	Maine	Bethel
208.0.176.0/21	2.0K	0.0%	FirstLight Fiber, Inc.	US	—	—
208.3.240.0/21	2.0K	0.0%	FirstLight Fiber, Inc.	US	—	—
208.31.8.0/21	2.0K	0.0%	FirstLight Fiber, Inc.	US	—	—
64.140.212.0/22	1.0K	87.2%	FirstLight Fiber, Inc.	US	—	—
64.140.240.0/22	1.0K	88.4%	FirstLight Fiber, Inc.	US	New Hampshire	Portsmouth
66.186.160.0/22	1.0K	88.2%	FirstLight Fiber, Inc.	US	Maine	Bangor
66.186.180.0/22	1.0K	89.6%	FirstLight Fiber, Inc.	US	Maine	Bethel
66.231.192.0/22	1.0K	94.4%	FirstLight Fiber, Inc.	US	—	—
66.231.220.0/22	1.0K	90.7%	FirstLight Fiber, Inc.	US	—	—
69.49.152.0/22	1.0K	93.1%	FirstLight Fiber, Inc.	US	Maine	Bryant Pond
72.12.84.0/22	1.0K	92.9%	FirstLight Fiber, Inc.	US	—	—
72.55.224.0/22	1.0K	97.4%	FirstLight Fiber, Inc.	US	Maine	Turner
72.55.240.0/22	1.0K	99.5%	FirstLight Fiber, Inc.	US	Maine	Bethel
72.55.248.0/22	1.0K	99.0%	FirstLight Fiber, Inc.	US	Maine	West Paris
64.140.208.0/23	512	88.7%	FirstLight Fiber, Inc.	US	—	—
64.140.246.0/23	512	91.0%	FirstLight Fiber, Inc.	US	—	—
66.186.164.0/23	512	87.1%	FirstLight Fiber, Inc.	US	Maine	Bangor
66.186.178.0/23	512	89.8%	FirstLight Fiber, Inc.	US	Maine	Topsham
66.231.198.0/23	512	91.4%	FirstLight Fiber, Inc.	US	—	—
66.231.202.0/23	512	90.4%	FirstLight Fiber, Inc.	US	Maine	Bryant Pond
66.231.204.0/23	512	92.2%	FirstLight Fiber, Inc.	US	—	—
69.49.156.0/23	512	90.4%	FirstLight Fiber, Inc.	US	Maine	Portland
72.12.80.0/23	512	93.0%	FirstLight Fiber, Inc.	US	—	—
72.55.228.0/23	512	98.4%	FirstLight Fiber, Inc.	US	Maine	Clinton
72.55.254.0/23	512	98.6%	FirstLight Fiber, Inc.	US	Maine	Sumner
64.140.211.0/24	256	80.1%	FirstLight Fiber, Inc.	US	—	—
64.140.245.0/24	256	89.5%	FirstLight Fiber, Inc.	US	—	—
66.186.166.0/24	256	90.2%	FirstLight Fiber, Inc.	US	Maine	Bryant Pond
66.186.176.0/24	256	87.9%	FirstLight Fiber, Inc.	US	Maine	Greenwood
66.231.197.0/24	256	94.1%	FirstLight Fiber, Inc.	US	—	—
66.231.200.0/24	256	91.0%	FirstLight Fiber, Inc.	US	Maine	Madison
66.231.207.0/24	256	90.6%	FirstLight Fiber, Inc.	US	—	—
66.231.217.0/24	256	91.8%	FirstLight Fiber, Inc.	US	—	—
66.231.219.0/24	256	89.5%	FirstLight Fiber, Inc.	US	—	—
72.12.82.0/24	256	94.1%	FirstLight Fiber, Inc.	US	—	—
72.55.232.0/24	256	96.5%	FirstLight Fiber, Inc.	US	Maine	Bangor
72.55.247.0/24	256	98.8%	FirstLight Fiber, Inc.	US	Maine	Oxford
72.55.252.0/24	256	98.4%	FirstLight Fiber, Inc.	US	Maine	Portland
140.165.50.0/24	256	0.0%	FirstLight Fiber, Inc.	US	—	—
198.212.225.0/24	256	0.0%	FirstLight Fiber, Inc.	US	—	—
198.212.226.0/24	256	0.0%	FirstLight Fiber, Inc.	US	—	—
198.212.230.0/24	256	0.0%	FirstLight Fiber, Inc.	US	—	—

Prefixos BGP Anunciados

Anomalias BGP ao vivo →

Prefixos AS21547 realmente se origina no BGP, observado em nossos coletores RIPE RIS. Esta visualização de roteamento ao vivo pode diferir da alocação de registro acima.

Prefix	Amostras de anúncio	Última vez visto
72.12.75.0/24	8,351	2026-07-25 16:02:06
66.186.176.0/24	8,049	2026-07-25 16:02:06
69.49.140.0/23	8,007	2026-07-25 16:02:02
66.231.192.0/24	7,994	2026-07-25 16:02:02
69.49.146.0/24	7,982	2026-07-25 16:02:02
72.12.76.0/23	7,176	2026-07-25 16:03:19
72.12.80.0/24	7,130	2026-07-25 16:03:19
72.12.78.0/24	7,129	2026-07-25 16:03:19
72.12.79.0/24	7,123	2026-07-25 16:03:19
140.165.50.0/24	7,096	2026-07-25 16:00:54
72.12.92.0/24	7,068	2026-07-25 16:03:19
72.12.94.0/23	7,068	2026-07-25 16:03:19
72.12.87.0/24	7,065	2026-07-25 16:03:19
72.12.84.0/24	7,050	2026-07-25 16:03:19
64.140.234.0/24	7,012	2026-07-25 16:03:19
64.140.199.0/24	6,984	2026-07-25 16:03:19
66.186.171.0/24	6,980	2026-07-25 16:03:19
66.186.184.0/24	6,977	2026-07-25 16:03:19
66.186.188.0/24	6,953	2026-07-25 16:03:19
66.186.163.0/24	6,903	2026-07-25 16:03:19
66.186.162.0/24	6,891	2026-07-25 16:03:19
198.212.230.0/24	6,875	2026-07-25 16:00:54
72.55.248.0/23	6,831	2026-07-25 16:03:19
72.55.254.0/23	6,825	2026-07-25 16:03:19
69.49.144.0/24	6,812	2026-07-25 16:03:19
69.49.148.0/24	6,810	2026-07-25 16:03:19
74.220.236.0/24	6,770	2026-07-25 16:03:19
66.231.219.0/24	6,733	2026-07-25 16:03:19
66.231.207.0/24	6,718	2026-07-25 16:03:19
66.231.208.0/24	6,692	2026-07-25 16:03:19
69.49.133.0/24	6,689	2026-07-25 15:59:36
66.231.214.0/24	6,672	2026-07-25 16:03:19
66.231.220.0/22	6,665	2026-07-25 16:03:19
66.231.215.0/24	6,660	2026-07-25 16:03:19
66.231.217.0/24	6,657	2026-07-25 16:03:19
69.49.128.0/24	6,593	2026-07-25 16:03:19
72.55.247.0/24	6,569	2026-07-25 16:03:19
69.49.129.0/24	6,553	2026-07-25 16:03:19
66.186.173.0/24	6,541	2026-07-25 16:03:19
72.12.91.0/24	6,080	2026-07-25 16:03:19
64.140.225.0/24	6,010	2026-07-25 16:03:19
64.140.224.0/24	6,009	2026-07-25 16:03:19
64.140.224.0/19	6,005	2026-07-25 16:03:19
72.12.64.0/19	6,004	2026-07-25 16:03:19
64.140.192.0/18	6,003	2026-07-25 16:03:19
64.140.246.0/24	5,988	2026-07-25 16:03:19
72.55.224.0/19	5,940	2026-07-25 16:03:19
74.220.224.0/20	5,902	2026-07-25 16:03:19
66.186.160.0/19	5,896	2026-07-25 16:03:19
69.49.128.0/19	5,887	2026-07-25 16:03:19

Mostrando os principais 50 of 70 prefixos anunciados por volume de amostras.

Frequently Asked Questions

O que é AS21547?

AS21547 é um Autonomous System Number atribuído a FirstLight Fiber, Inc.. Um ASN identifica uma rede que controla um conjunto específico de endereços IP e determina como o tráfego é roteado pela internet via BGP (Border Gateway Protocol).

Quantos endereços IP o AS21547 anuncia?

AS21547 anuncia 68.4K endereços IPv4 distribuídos por 56 prefixos CIDR roteados. A rede está registrada em United States.

Quem opera o AS21547?

AS21547 é operado por FirstLight Fiber, Inc.. A organização está sediada em United States. Você pode ver todos os intervalos de IP e ASNs relacionados na página da organização.

Em que país o AS21547 está registrado?

AS21547 está registrado em United States. Isso indica onde o operador de rede está sediado, embora os endereços IP que ele anuncia possam atender usuários globalmente.

Última atualização: 2026-07-25 16:10:31 UTC