LAYER3 INTEL
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Data as of Nov 8, 2026

66.244.160.0/19

No anonymizer space · no proxy exits in 30 days

First Communications LLC

Announcement
this exact prefix
No RPKI
Announced by
AS16399
Type
Business
Risk
0 / 100 · Low

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
66.244.160.0/198,192FIRSTCOMM-NET8First Communications LLC (FCL-52) · USDirect AllocationSep 22, 2005netopssa@firstcomm.com
└ 66.244.160.0/29866-244-160-0-GCIBLKunknown———
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└ 66.244.160.192/273266-244-160-192-GCIBLKunknown———
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└ 66.244.161.0/29866-244-161-0-GCIBLKunknown———
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└ 66.244.161.104/29866-244-161-104-GCIBLKunknown———
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└ 66.244.161.120/29866-244-161-120-GCIBLKunknown———
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└ 66.244.161.136/29866-244-161-136-GCIBLKunknown———
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└ 66.244.161.176/29866-244-161-176-GCIBLKunknown———
└ 66.244.161.192/273266-244-161-192-GCIBLKunknown———
└ 66.244.161.224/273266-244-161-224-GCIBLKunknown———
└ 66.244.162.0/2425666-244-162-0-GCIBLKunknown———
└ 66.244.163.0/29866-244-163-0-GCIBLKunknown———
└ 66.244.163.8/29866-244-163-8-GCIBLKunknown———
└ 66.244.163.16/29866-244-163-16-GCIBLKunknown———
└ 66.244.163.24/29866-244-163-24-GCIBLKunknown———
└ 66.244.163.32/29866-244-163-32-GCIBLKunknown———
└ 66.244.163.40/29866-244-163-40-GCIBLKunknown———
└ 66.244.163.48/29866-244-163-48-GCIBLKunknown———
└ 66.244.163.56/29866-244-163-56-GCIBLKunknown———
└ 66.244.163.64/29866-244-163-64-GCIBLKunknown———
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└ 66.244.163.80/29866-244-163-80-GCIBLKunknown———
└ 66.244.163.88/29866-244-163-88-GCIBLKunknown———
└ 66.244.163.96/29866-244-163-96-GCIBLKunknown———
└ 66.244.163.104/29866-244-163-104-GCIBLKunknown———
└ 66.244.163.112/29866-244-163-112-GCIBLKunknown———
└ 66.244.163.120/29866-244-163-120-GCIBLKunknown———
└ 66.244.163.128/29866-244-163-128-GCIBLKunknown———
└ 66.244.163.136/29866-244-163-136-GCIBLKunknown———
└ 66.244.163.144/29866-244-163-144-QCBLKunknown———
└ 66.244.163.152/29866-244-163-152-GCIBLKunknown———
└ 66.244.163.160/29866-244-163-160-GCIBLKunknown———
└ 66.244.163.168/29866-244-163-168-GCIBLKunknown———
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└ 66.244.163.184/29866-244-163-184-GCIBLKunknown———
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└ 66.244.163.232/29866-244-163-232-GCIBLKunknown———
└ 66.244.163.240/281666-244-163-240-GCIBLKunknown———
└ 66.244.164.0/2512866-244-164-0-GCIBLKunknown———
└ 66.244.164.128/266466-244-164-128-GCIBLKunknown———
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└ 66.244.165.0/2425666-244-165-0-GCIBLKunknown———
└ 66.244.166.0/273266-244-166-0-GCIBLKunknown———
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└ 66.244.166.192/266466-244-166-192-GCIBLKunknown———
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└ 66.244.167.128/29866-244-167-128-GCIBLKunknown———
└ 66.244.167.136/29866-244-167-136-GCIBLKunknown———
└ 66.244.167.144/29866-244-167-144-GCIBLKunknown———
└ 66.244.167.152/29866-244-167-152-GCIBLKunknown———
└ 66.244.167.160/29866-244-167-160-GCIBLKunknown———
└ 66.244.167.168/29866-244-167-168-GCIBLKunknown———
└ 66.244.167.176/29866-244-167-176-GCIBLKunknown———
└ 66.244.167.184/29866-244-167-184-GCIBLKunknown———
└ 66.244.167.192/29866-244-167-192-GCIBLKunknown———
└ 66.244.167.200/29866-244-167-200-GCIBLKunknown———
└ 66.244.167.208/29866-244-167-208-GCIBLKunknown———
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└ 66.244.168.88/29866-244-168-88-GLIBLYunknown———
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└ 66.244.171.0/29866-244-171-0-GCIBLKunknown———
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└ 66.244.171.192/273266-244-171-192-GCIBLKunknown———
└ 66.244.171.240/281666-244-171-240-GCIBLKunknown———
└ 66.244.172.0/29866-244-172-0-GCIBLKunknown———
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└ 66.244.172.224/273266-244-172-224-GCIBLKunknown———
└ 66.244.173.0/2425666-244-173-0-QCBLKunknown———
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└ 66.244.175.24/29866-244-175-24-GCIBLKunknown———
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└ 66.244.175.40/29866-244-175-40-GCIBLKunknown———
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Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS16399

US
Name
First Communications LLC
Type
Internet provider
Registered
Apr 25, 2000
Domain
firstcomm.com
Spamhaus ASN-DROP
not listed