174.42.0.0/15

Currently announced by AS22394 CELLCO, in the routed prefix 174.42.0.0/15.

Current ASN: AS22394; CELLCO
Routed prefix: 174.42.0.0/15; Most specific route covering this prefix
ASNs over time: 1; 2 announcement records
RIR allocation: ARIN; United States · 174.40.0.0/14

Routing data · Nov 11, 2026, 18:22 UTC

ASN historyEvery routed prefix covering 174.42.0.0/15

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
174.42.0.0/15	AS22394	CELLCO	United States	Before monitoring	2026-11-11 18:22	Announcing
174.40.0.0/14	AS22394	CELLCO	United States	Before monitoring	2026-11-11 18:22	Announcing

More specific routes21 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
174.42.0.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.4.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.8.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.12.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.16.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.20.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.24.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.28.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.128.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.132.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.136.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.140.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.144.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.148.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.152.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.156.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.160.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.164.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.168.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.172.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing
174.42.176.0/22	AS6167	Verizon Business AS6167	United States	Before monitoring	2026-11-11 18:22	Announcing

Change logAll changes

The routes covering this address have had no origin changes since ASNBase started monitoring.

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RIR allocation record

Registry: ARIN
Allocated block: 174.40.0.0/14
Country: United States
Allocation date: 2008-07-24
Status: allocated

From the RIRs’ delegated statistics files. Shows where the addresses are registered, not where they are used.

How monitoring works

Every 2 hours ASNBase takes the bgp.tools global routing table (prefix → origin ASN) and compares it with the previous one. The detected time is the time of that comparison; the actual change can be up to about 2 hours earlier.
Only routes seen by more than 100 bgp.tools peers are listed as changes; routes with less visibility are only kept in the history.
A new announcement counts only if it is still in the next routing table, and a withdrawal only if the prefix is missing from two tables in a row, so short flaps are ignored.
ASNBase has been monitoring since 2026-10-19. “Before monitoring” under “First seen” means the route was already announced when monitoring started; the earlier date is unknown.
Prefixes first seen during the first day of monitoring do not count as new announcements: most of them were simply missing from the table at the moment monitoring started.
Countries and regions follow the ASN’s registration, not the actual location of the IP addresses.