2001:1248:3180::/42

Currently announced by AS11172 Alestra, in the routed prefix 2001:1248:3180::/42.

Current ASN: AS11172; Alestra
Routed prefix: 2001:1248:3180::/42; Most specific route covering this prefix
ASNs over time: 1; 1 announcement record
RIR allocation: LACNIC; Mexico · 2001:1248::/32

Routing data · Nov 1, 2026, 22:23 UTC

ASN historyEvery routed prefix covering 2001:1248:3180::/42

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
2001:1248:3180::/42	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing

More specific routes60 total

Prefix	ASN	Name	Registered country	First seen (UTC)	Last seen (UTC)	Status
2001:1248:3180::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3181::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3182::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3183::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3184::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3185::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3186::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3187::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3189::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:318a::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:318b::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:318c::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:318e::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:318f::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3190::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3191::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3192::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3193::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3194::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3195::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3196::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3197::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3198::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:3199::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:319a::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:319b::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:319c::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:319d::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:319e::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:319f::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31a0::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31a1::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31a2::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31a3::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31a4::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31a5::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31a6::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31a7::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31a8::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31a9::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31aa::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31ab::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31ad::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31ae::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31af::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31b1::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31b2::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31b3::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31b4::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31b5::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31b6::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31b7::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31b8::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31b9::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31ba::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31bb::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31bc::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31bd::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:31be::/48	AS11172	Alestra	Mexico	Before monitoring	2026-11-01 22:23	Announcing
2001:1248:318d::/48	AS11172	Alestra	Mexico	Before monitoring	2026-10-30 20:21	Stopped

Change logAll changes

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

Look up another address

RIR allocation record

Registry: LACNIC
Allocated block: 2001:1248::/32
Country: Mexico
Allocation date: 2008-01-08
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.