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Autonomous System

AS10753

Level 3 Parent, LLC

Announced IPs
403,200
CIDR prefixes
640
ASN
AS10753

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 v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

About Level 3 Communications

Level 3 Communications, Inc. was an American multinational telecommunications and internet service provider company headquartered in Broomfield, Colorado.

Founded
1985
Headquarters
Frankfurt
Industry
telecommunications

⚠ 28 MOAS prefixes — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS10753 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)
8.243.202.0/24 AS10753, AS198949 2026-07-18 12:37:44
68.68.98.0/24 AS10753, AS18779 2026-07-18 12:37:44
66.193.23.0/24 AS10753, AS400057 2026-07-18 12:37:44
200.201.169.0/24 AS10753, AS20116 2026-07-18 12:37:44
204.86.134.0/23 AS10753, AS395605 2026-07-18 12:37:44
8.242.218.0/24 AS10753, AS27947 2026-07-18 12:37:44
82.39.136.0/24 AS10753, AS20326, AS206675 2026-07-18 12:37:44
45.199.178.0/24 AS10753, AS27947 2026-07-18 12:37:44
216.33.160.0/24 AS203, AS10753 2026-07-18 12:37:44
151.242.183.0/24 AS10753, AS137897 2026-07-18 08:52:43
151.242.180.0/24 AS10753, AS137897, AS206675 2026-07-18 08:52:43
108.165.223.0/24 AS10753, AS200579 2026-07-18 00:52:40
166.0.239.0/24 AS10753, AS200579 2026-07-18 00:52:40
102.217.105.0/24 AS10753, AS206675 2026-07-17 23:37:39
87.229.70.0/24 AS10753, AS206675 2026-07-17 23:37:39

Showing the 15 most recently detected of 28 MOAS prefixes. Many multi-origin prefixes on large networks are benign (anycast); see all MOAS anomalies.

AS10753 — global IP footprint

Cities where AS10753 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
138.15.0.0/16 65.5K
0.0%
Level 3 Parent, LLC US New Jersey Princeton
147.207.0.0/17 32.8K
0.0%
Level 3 Parent, LLC US
147.207.128.0/18 16.4K
0.0%
Level 3 Parent, LLC US
147.207.192.0/19 8.2K
0.0%
Level 3 Parent, LLC US
166.67.96.0/19 8.2K
0.0%
Level 3 Parent, LLC US
168.215.0.0/19 8.2K
13.7%
Level 3 Parent, LLC US
198.143.0.0/19 8.2K
46.0%
Level 3 Parent, LLC US
23.92.144.0/20 4.1K
0.0%
Level 3 Parent, LLC CA
87.98.96.0/20 4.1K
0.0%
Level 3 Parent, LLC NL
132.244.80.0/20 4.1K
0.1%
Level 3 Parent, LLC GB
147.207.224.0/20 4.1K
0.0%
Level 3 Parent, LLC US
178.209.64.0/20 4.1K
0.0%
Level 3 Parent, LLC UA
8.242.128.0/21 2.0K
0.0%
Level 3 Parent, LLC US
13.141.144.0/21 2.0K
0.0%
Level 3 Parent, LLC DE
85.255.176.0/21 2.0K
0.0%
Level 3 Parent, LLC UA
87.98.112.0/21 2.0K
0.0%
Level 3 Parent, LLC NL
109.204.104.0/21 2.0K
81.2%
Level 3 Parent, LLC GB
162.18.72.0/21 2.0K
18.8%
Level 3 Parent, LLC US
162.251.248.0/21 2.0K
0.0%
Level 3 Parent, LLC US
166.0.88.0/21 2.0K
96.3%
Level 3 Parent, LLC US
205.203.176.0/21 2.0K
0.5%
Level 3 Parent, LLC US
206.106.32.0/21 2.0K
0.0%
Level 3 Parent, LLC US
206.192.80.0/21 2.0K
0.9%
Level 3 Parent, LLC US Pennsylvania Leola
8.242.136.0/22 1.0K
0.1%
Level 3 Parent, LLC US
13.141.140.0/22 1.0K
0.0%
Level 3 Parent, LLC DE
45.95.72.0/22 1.0K
0.0%
GigeNET US
45.139.56.0/22 1.0K
97.9%
Level 3 Parent, LLC CZ
50.114.76.0/22 1.0K
97.6%
Level 3 Parent, LLC US
62.192.120.0/22 1.0K
91.0%
Level 3 Parent, LLC US
66.77.244.0/22 1.0K
23.2%
Level 3 Parent, LLC US
66.128.192.0/22 1.0K
91.1%
Level 3 Parent, LLC US
66.128.204.0/22 1.0K
90.4%
Level 3 Parent, LLC US
75.153.64.0/22 1.0K
0.0%
Level 3 Parent, LLC CA
75.153.72.0/22 1.0K
0.0%
Level 3 Parent, LLC CA
75.153.80.0/22 1.0K
0.0%
Level 3 Parent, LLC CA
75.153.88.0/22 1.0K
0.0%
Level 3 Parent, LLC CA
75.153.96.0/22 1.0K
0.0%
Level 3 Parent, LLC CA
75.153.104.0/22 1.0K
0.0%
Level 3 Parent, LLC CA
75.153.112.0/22 1.0K
0.0%
Level 3 Parent, LLC CA
75.153.120.0/22 1.0K
0.0%
Level 3 Parent, LLC CA
86.104.160.0/22 1.0K
0.0%
Level 3 Parent, LLC PS
91.200.212.0/22 1.0K
0.0%
Level 3 Parent, LLC UA
141.81.180.0/22 1.0K
0.0%
Level 3 Parent, LLC SE
144.225.200.0/22 1.0K
98.5%
Level 3 Parent, LLC US
147.207.240.0/22 1.0K
0.0%
Level 3 Parent, LLC US
147.207.252.0/22 1.0K
0.0%
Level 3 Parent, LLC US
149.97.48.0/22 1.0K
3.7%
Level 3 Parent, LLC US
151.242.180.0/22 1.0K
0.0%
PAN-LIAN TECHNOLOGY CO., LIMITED AE
159.14.184.0/22 1.0K
0.3%
Level 3 Parent, LLC US Pennsylvania Philadelphia
164.38.160.0/22 1.0K
0.0%
Level 3 Parent, LLC GB
175.110.72.0/22 1.0K
0.0%
Level 3 Parent, LLC PK
175.110.84.0/22 1.0K
0.0%
Level 3 Parent, LLC PK
185.192.36.0/22 1.0K
0.0%
Level 3 Parent, LLC GB
185.197.228.0/22 1.0K
0.3%
Level 3 Parent, LLC IT Lombardy Brescia
192.144.52.0/22 1.0K
0.0%
Level 3 Parent, LLC CZ
193.203.28.0/22 1.0K
0.0%
GigeNET US
199.197.0.0/22 1.0K
0.0%
Level 3 Parent, LLC US Texas Midland
200.14.84.0/22 1.0K
0.0%
Level 3 Parent, LLC CL
205.144.100.0/22 1.0K
7.1%
Level 3 Parent, LLC US
205.153.8.0/22 1.0K
88.2%
Level 3 Parent, LLC US Colorado Lakewood
205.188.148.0/22 1.0K
0.0%
Level 3 Parent, LLC LT
205.188.152.0/22 1.0K
0.0%
Level 3 Parent, LLC LT
205.188.228.0/22 1.0K
0.0%
Level 3 Parent, LLC LT
205.203.180.0/22 1.0K
0.0%
US
205.203.184.0/22 1.0K
2.4%
Level 3 Parent, LLC US
216.38.168.0/22 1.0K
0.0%
Level 3 Parent, LLC US Arizona Phoenix
217.67.68.0/22 1.0K
0.0%
Level 3 Parent, LLC UA
8.28.22.0/23 512
0.2%
Level 3 Parent, LLC US Virginia Alexandria
8.242.140.0/23 512
0.0%
Level 3 Parent, LLC US
8.243.2.0/23 512
0.0%
Level 3 Parent, LLC US
13.143.118.0/23 512
0.0%
Level 3 Parent, LLC US
23.26.162.0/23 512
95.1%
Level 3 Parent, LLC US
31.76.190.0/23 512
0.0%
Level 3 Parent, LLC US
31.77.234.0/23 512
0.0%
HGC Global Communications Limited US
45.5.180.0/23 512
0.0%
Level 3 Parent, LLC CO Valle del Cauca Department Cali
63.158.166.0/23 512
98.2%
Level 3 Parent, LLC US
63.232.224.0/23 512
1.0%
Level 3 Parent, LLC US
64.8.48.0/23 512
55.9%
Level 3 Parent, LLC US
64.105.218.0/23 512
87.5%
Level 3 Parent, LLC US
64.139.42.0/23 512
93.4%
Level 3 Parent, LLC US
64.139.46.0/23 512
93.9%
Level 3 Parent, LLC US
64.139.48.0/23 512
97.3%
Level 3 Parent, LLC US
64.139.60.0/23 512
97.5%
Level 3 Parent, LLC US
64.144.194.0/23 512
96.1%
Level 3 Parent, LLC US
65.118.188.0/23 512
98.6%
Level 3 Parent, LLC US
67.77.62.0/23 512
5.1%
Level 3 Parent, LLC US
67.128.8.0/23 512
99.0%
Level 3 Parent, LLC US
67.128.124.0/23 512
98.8%
Level 3 Parent, LLC US Arizona Casa Grande
72.165.236.0/23 512
0.0%
CenturyLink Communications, LLC US Nebraska Omaha
72.166.58.0/23 512
0.4%
Level 3 Parent, LLC US
74.203.48.0/23 512
4.9%
Level 3 Parent, LLC US
82.38.80.0/23 512
0.0%
Level 3 Parent, LLC GB
83.143.168.0/23 512
0.0%
Level 3 Parent, LLC ES
83.143.172.0/23 512
0.0%
Level 3 Parent, LLC ES
85.254.178.0/23 512
0.0%
Level 3 Parent, LLC LV
91.207.152.0/23 512
0.0%
Level 3 Parent, LLC GB
96.126.180.0/23 512
97.3%
Level 3 Parent, LLC US
104.165.134.0/23 512
0.0%
Level 3 Parent, LLC US California Santa Clara
108.165.162.0/23 512
97.5%
Aptum Technologies US
108.165.222.0/23 512
99.6%
Level 3 Parent, LLC US

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS10753 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
65.125.143.0/24 3,153,815 2026-07-18 12:00:02
167.236.50.0/24 131,621 2026-07-18 12:00:01
149.97.46.0/23 120,974 2026-07-18 12:01:19
149.97.0.0/23 120,973 2026-07-18 12:01:19
149.97.4.0/24 120,938 2026-07-18 12:01:19
200.12.130.0/24 40,140 2026-07-18 12:27:03
193.240.217.0/24 37,044 2026-07-18 10:52:00
190.217.24.0/24 32,397 2026-07-18 10:51:58
149.150.200.0/24 31,048 2026-07-18 12:00:01
8.242.15.0/24 30,579 2026-07-18 12:32:22
199.79.203.0/24 29,851 2026-07-18 12:00:11
149.97.48.0/22 27,083 2026-07-18 12:01:18
64.76.96.0/24 24,208 2026-07-18 12:00:01
200.14.85.0/24 23,986 2026-07-18 12:00:01
200.14.87.0/24 23,973 2026-07-18 12:00:01
149.97.36.0/24 22,178 2026-07-18 12:01:19
194.34.76.0/22 20,834 2026-07-18 10:51:59
199.68.16.0/22 20,819 2026-07-18 10:51:59
149.97.32.0/24 20,274 2026-07-18 12:01:19
8.243.201.0/24 19,269 2026-07-18 11:59:04
149.97.16.0/24 18,643 2026-07-18 12:01:19
149.97.18.0/23 18,642 2026-07-18 12:01:19
149.97.2.0/24 18,187 2026-07-18 12:01:19
149.97.24.0/24 18,146 2026-07-18 12:01:19
149.97.26.0/23 17,815 2026-07-18 12:01:19
149.97.40.0/24 17,807 2026-07-18 12:01:19
149.97.35.0/24 16,566 2026-07-18 12:01:19
198.140.170.0/24 16,021 2026-07-18 10:51:58
63.158.238.0/24 14,480 2026-07-18 11:59:57
8.41.85.0/24 14,400 2026-07-18 11:59:04
159.14.184.0/22 13,979 2026-07-18 12:01:32
8.242.128.0/22 13,578 2026-07-18 11:59:05
8.242.136.0/22 13,552 2026-07-18 11:59:05
8.242.132.0/23 13,539 2026-07-18 11:59:05
8.242.140.0/23 13,527 2026-07-18 11:59:05
8.242.135.0/24 13,525 2026-07-18 11:59:05
8.242.134.0/24 13,522 2026-07-18 11:59:05
45.5.180.0/23 13,424 2026-07-18 11:59:33
189.125.159.0/24 13,049 2026-07-18 10:52:00
194.169.98.0/23 12,147 2026-07-18 10:52:00
199.5.248.0/24 11,984 2026-07-18 10:51:59
199.5.247.0/24 11,941 2026-07-18 10:51:59
147.21.138.0/24 11,512 2026-07-18 12:00:02
184.159.130.0/23 11,216 2026-07-18 12:01:02
216.248.21.0/24 10,707 2026-07-18 10:51:58
8.242.218.0/24 10,695 2026-07-18 09:10:15
136.143.252.0/24 10,614 2026-07-18 12:00:05
136.143.246.0/24 10,585 2026-07-18 12:00:05
82.27.210.0/24 10,521 2026-07-18 12:00:05
108.165.242.0/24 10,486 2026-07-18 12:00:05

Showing top 50 of 1,139 announced prefixes by sample volume.

Frequently Asked Questions

What is AS10753?

AS10753 is an Autonomous System Number assigned to Level 3 Parent, LLC. 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 AS10753 announce?

AS10753 announces 403.2K IPv4 addresses distributed across 640 routed CIDR prefixes. The network is registered in United States.

Who operates AS10753?

AS10753 is operated by Level 3 Parent, LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.

What country is AS10753 registered in?

AS10753 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 12:40:28 UTC
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