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Autonomous System

AS17035

NBCUniversal

Announced IPs
24,320
CIDR prefixes
31
ASN
AS17035

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.

65/100
Moderate
How this score is built

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

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
50.228.144.0/20 4.1K
0.2%
NBCUniversal US New York New York
50.230.144.0/20 4.1K
0.0%
NBCUniversal US California Universal City
216.178.96.0/20 4.1K
0.3%
NBCUniversal US
50.207.32.0/21 2.0K
0.0%
NBCUniversal US
70.39.44.0/22 1.0K
0.0%
NBCUniversal US
209.23.192.0/22 1.0K
0.0%
NBCUniversal US
216.4.176.0/22 1.0K
0.2%
NBCUniversal US California Los Angeles
50.221.162.0/23 512
0.0%
NBCUniversal US
70.39.48.0/23 512
0.0%
NBCUniversal US
70.39.58.0/23 512
0.0%
NBCUniversal US
70.39.62.0/23 512
0.0%
NBCUniversal US
204.237.248.0/23 512
0.4%
NBCUniversal US
8.11.200.0/24 256
0.0%
NBCUniversal US
50.149.85.0/24 256
0.0%
NBCUniversal US
50.172.163.0/24 256
0.4%
NBCUniversal US
50.175.130.0/24 256
0.0%
NBCUniversal US
50.200.194.0/24 256
0.0%
NBCUniversal US
50.218.3.0/24 256
0.0%
NBCUniversal US
50.218.20.0/24 256
0.0%
NBCUniversal US
50.218.36.0/24 256
0.0%
NBCUniversal US
50.220.223.0/24 256
0.0%
NBCUniversal US
50.221.27.0/24 256
0.0%
NBCUniversal US
50.225.179.0/24 256
0.0%
NBCUniversal US Pennsylvania Spring Grove
50.227.232.0/24 256
0.0%
NBCUniversal US Florida Miami
50.229.129.0/24 256
0.0%
NBCUniversal US Connecticut Ansonia
70.39.48.0/24 256
0.0%
NBCUniversal US
70.39.61.0/24 256
0.0%
NBCUniversal US
70.39.63.0/24 256
0.0%
NBCUniversal US
173.213.208.0/24 256
0.8%
NBCUniversal US
192.251.69.0/24 256
0.0%
NBCUniversal US California Compton
209.116.149.0/24 256
0.0%
NBCUniversal US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS17035 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
50.225.179.0/24 36,476 2026-09-13 06:14:25
50.175.130.0/24 35,550 2026-09-13 06:14:24
50.221.27.0/24 33,329 2026-09-13 06:14:25
216.178.104.0/21 32,802 2026-09-13 06:15:20
70.39.58.0/24 31,447 2026-09-13 06:14:25
70.39.59.0/24 31,417 2026-09-13 06:14:25
50.218.3.0/24 29,023 2026-09-13 06:14:17
50.220.223.0/24 28,601 2026-09-13 06:14:25
192.251.69.0/24 28,588 2026-09-13 06:15:20
50.227.232.0/24 28,474 2026-09-13 06:14:25
50.149.85.0/24 27,887 2026-09-13 06:14:17
70.39.63.0/24 27,618 2026-09-13 06:13:28
173.213.208.0/24 27,198 2026-09-13 06:14:00
70.39.49.0/24 23,617 2026-09-13 06:14:16
70.39.62.0/24 22,821 2026-09-13 04:00:15
50.218.20.0/24 20,421 2026-09-13 06:13:28
70.39.61.0/24 19,681 2026-09-13 03:25:23
50.200.194.0/24 18,700 2026-09-13 06:14:52
50.221.162.0/23 18,419 2026-09-13 06:14:37
50.207.32.0/21 17,158 2026-09-13 06:12:22
209.23.192.0/22 15,700 2026-09-13 06:14:24
50.228.144.0/20 14,944 2026-09-13 06:12:37
70.39.47.0/24 14,533 2026-09-13 03:24:43
70.39.44.0/24 14,222 2026-09-13 03:25:28
8.11.200.0/24 13,008 2026-09-13 06:14:27
50.218.36.0/24 12,310 2026-09-13 06:14:30
50.229.129.0/24 12,219 2026-09-13 06:11:22
216.4.178.0/23 11,939 2026-09-13 05:15:15
216.4.176.0/23 11,883 2026-09-13 05:15:23
50.230.144.0/20 11,763 2026-09-13 06:12:30
70.39.45.0/24 11,535 2026-09-13 05:15:15
204.237.248.0/23 10,465 2026-09-13 05:14:45
70.39.46.0/24 10,181 2026-09-13 05:15:16
216.178.96.0/21 8,961 2026-09-13 03:24:40
50.172.163.0/24 7,065 2026-09-13 05:27:28
209.116.149.0/24 7,014 2026-09-13 03:25:04
216.4.176.0/22 6,838 2026-09-13 03:25:04
70.39.48.0/24 6,573 2026-09-13 05:15:23
64.129.180.0/24 1,402 2026-05-21 06:45:58

Frequently Asked Questions

What is AS17035?

AS17035 is an Autonomous System Number assigned to NBCUniversal. 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 AS17035 announce?

AS17035 announces 24.3K IPv4 addresses distributed across 31 routed CIDR prefixes. The network is registered in United States.

Who operates AS17035?

AS17035 is operated by NBCUniversal. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS17035 registered in?

AS17035 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: 2026-09-13 06:24:07 UTC
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