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自治系统

AS33657

Comcast Cable Communications, LLC

已宣布的 IP 地址
11,776
CIDR 前缀
29
ASN
AS33657

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 →

About Xfinity

Comcast Cable Communications, doing business as Xfinity, is an American telecommunications business segment and division of Comcast Corporation. It is used to market consumer cable television, internet, telephone, and wireless services provided by the company.

Founded
1981
Headquarters
Philadelphia
Industry
telecommunications

⚠ 1 MOAS 前缀 — 检测到多源 ASNs

所有 MOAS 异常 →

此前由 AS33657 公告的稳定前缀现在也由另一个 ASN 公告(MOAS — 多源 AS),这是通过我们的 RIPE RIS 收集器检测到的。这通常是良性的(任播、多宿主或近期转移)—— 但它可能预示着路由泄漏或前缀劫持,因此值得检查。

前缀源 ASNs最后检测 (UTC)
199.249.199.0/24 AS7784, AS33657 2026-07-25 19:38:59

Network profile

Source: PeeringDB →
Network type Cable/DSL/ISP
Geographic scope Regional
Traffic ratio Not Disclosed
Peering policy Restrictive

热门 CIDR 范围

CIDRIP 地址PTR Density组织国家StateCity
69.67.80.0/20 4.1K
89.8%
Comcast Cable Communications, LLC US Maryland Baltimore
50.223.158.0/23 512
0.0%
Comcast Cable Communications, LLC US Maryland Germantown
192.110.220.0/23 512
0.0%
Comcast Cable Communications, LLC US
50.201.252.0/24 256
0.0%
Comcast Cable Communications, LLC US
50.202.117.0/24 256
3.5%
Comcast Cable Communications, LLC US
50.202.155.0/24 256
0.0%
Comcast Cable Communications, LLC US
50.203.251.0/24 256
0.0%
Comcast Cable Communications, LLC US Maryland Arnold
50.204.116.0/24 256
0.0%
Comcast Cable Communications, LLC US Maryland Frederick
50.204.128.0/24 256
0.8%
Comcast Cable Communications, LLC US
50.205.74.0/24 256
0.0%
Comcast Cable Communications, LLC US
50.207.162.0/24 256
0.4%
Comcast Cable Communications, LLC US Maryland Emmitsburg
50.216.214.0/24 256
0.0%
Comcast Cable Communications, LLC US
50.219.87.0/24 256
0.0%
Comcast Cable Communications, LLC US
50.224.212.0/24 256
0.8%
Comcast Cable Communications, LLC US Maryland Baltimore
50.232.109.0/24 256
0.0%
Comcast Cable Communications, LLC US
50.232.173.0/24 256
0.0%
Comcast Cable Communications, LLC US
50.232.184.0/24 256
0.0%
Comcast Cable Communications, LLC US
50.235.98.0/24 256
0.0%
Comcast Cable Communications, LLC US
50.235.236.0/24 256
0.0%
Comcast Cable Communications, LLC US
50.236.38.0/24 256
0.0%
Comcast Cable Communications, LLC US Maryland Bel Air
50.236.234.0/24 256
0.8%
Comcast Cable Communications, LLC US
50.238.112.0/24 256
1.2%
Comcast Cable Communications, LLC US Virginia McLean
50.238.163.0/24 256
0.0%
Comcast Cable Communications, LLC US
50.239.232.0/24 256
0.0%
Comcast Cable Communications, LLC US
76.78.2.0/24 256
99.2%
Comcast Cable Communications, LLC US Maryland Towson
107.1.101.0/24 256
97.3%
Comcast Cable Communications, LLC US Virginia Alexandria
192.189.235.0/24 256
0.0%
Comcast Cable Communications, LLC US
199.249.199.0/24 256
12.9%
Comcast Cable Communications, LLC US
208.87.105.0/24 256
0.4%
Comcast Cable Communications, LLC US

BGP 公告前缀

实时 BGP 异常 →

前缀 AS33657 实际源自 BGP,通过我们的 RIPE RIS 收集器观测。此实时路由视图可能与上述注册分配有所不同。

Prefix公告样本最后观测
50.205.74.0/24 11,379 2026-07-25 22:23:13
50.235.98.0/24 8,701 2026-07-25 22:23:13
199.249.199.0/24 8,646 2026-07-25 22:24:03
50.203.251.0/24 8,457 2026-07-25 22:23:13
50.216.214.0/24 7,238 2026-07-25 22:23:13
50.232.173.0/24 7,238 2026-07-25 22:23:13
69.67.80.0/20 7,112 2026-07-25 22:24:03
50.239.232.0/24 7,074 2026-07-15 16:17:52
208.87.105.0/24 7,044 2026-07-25 22:24:03
50.207.162.0/24 6,780 2026-07-25 22:23:13
50.204.128.0/24 6,771 2026-07-25 22:23:13
50.219.87.0/24 6,760 2026-07-25 22:23:13
50.232.184.0/24 6,759 2026-07-25 22:23:13
50.224.212.0/24 6,758 2026-07-25 22:23:13
50.223.159.0/24 6,750 2026-07-25 22:23:13
50.201.252.0/24 6,741 2026-07-25 22:23:13
50.204.116.0/24 6,737 2026-07-25 22:23:13
50.236.38.0/24 6,734 2026-07-25 22:23:13
50.223.158.0/24 6,732 2026-07-25 22:23:13
50.202.117.0/24 6,731 2026-07-25 22:23:13
107.1.101.0/24 6,730 2026-07-25 22:23:13
50.236.234.0/24 6,728 2026-07-25 22:23:13
50.235.236.0/24 6,728 2026-07-25 22:23:13
50.202.155.0/24 6,727 2026-07-25 22:23:13
50.232.109.0/24 6,711 2026-07-25 22:23:13
50.238.163.0/24 6,705 2026-07-25 22:23:13
76.78.2.0/24 5,686 2026-07-25 22:24:03
192.189.235.0/24 5,503 2026-07-25 22:24:03
192.110.220.0/23 5,491 2026-07-25 22:24:03
50.238.112.0/24 3,276 2026-07-13 06:46:19

Frequently Asked Questions

什么是 AS33657?

AS33657 是分配给 Comcast Cable Communications, LLC 的自治系统编号 (Autonomous System Number)。ASN 标识一个控制特定 IP 地址集的网络,并通过 BGP(边界网关协议)确定流量如何在互联网上传输。

AS33657 公告了多少个 IP 地址?

AS33657 公告了 11.8K 个 IPv4 地址,分布在 29 个路由 CIDR 前缀中。 该网络在 United States 注册。

谁运营 AS33657?

AS33657 由 Comcast Cable Communications, LLC 运营。 该组织总部位于 United States。 您可以在组织页面查看所有 IP 范围和相关 ASNs。

AS33657 在哪个国家注册?

AS33657 在 United States 注册。这表明网络运营商的总部所在地,尽管其公告的 IP 地址可能服务全球用户。

最后更新:2026-07-25 22:55:31 UTC
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