AS1637
No prefixes for this AS number were observed in the RouteViews RIB.
Summary
- // analyst note
- Combined observation across route-views2 and route-views6 at 2026-11-06T20:00:00Z; AS_PATH adjacency is not verified peering or a provider relationship.
About this ASN.
AS1637 is an ASN whose operator and registered name are unknown from the supplied evidence; a combined Route Views observation recorded 118 IPv4 prefixes and 1 IPv6 prefix at 2026-11-06 20:00 UTC. This is a dated routing snapshot, not proof of who operates the network or whether the observed routes remain present now.
Across route-views2 and route-views6 together, the snapshot covered an estimated 201,728 IPv4 addresses and recorded one AS_PATH neighbour, AS27066. That adjacency does not establish a verified peering relationship, upstream, customer relationship, or commercial connection. The single observed neighbour also does not establish that no other adjacencies exist beyond this sample or timestamp.
For identification, compare the routes and AS_PATHs with a fresh multi-vantage observation, then check registry and first-party operator records for an explicit link to AS1637. Investigate unexpected route changes, origin validation, and reachability using current data before drawing operational conclusions. IANA identifies the allocating RIR as ARIN for the encompassing 1–1876 block; that block-level fact does not identify an individual assignment or deployment.
- Routing observation
- 118 IPv4 prefixes and 1 IPv6 prefix were observed in the combined Route Views snapshot at 2026-11-06 20:00 UTC.
- Neighbour
- AS27066 was the one observed AS_PATH neighbour; this does not verify a peering or provider relationship.
- Triage
- Compare current routes and AS_PATHs across multiple vantage points, then seek first-party evidence that explicitly links an operator to AS1637.
- Operator
- Unknown
- AS name
- Unknown
- Country
- Unknown
- Website
- Unknown
- Allocated date
- Unknown
Network & routing
- Network type
- Unknown
- AS rank
- Unknown
- Customer cone size
- Unknown
- IX presence
- Unknown
- Peering policy
- Unknown
- RPKI status
- Unknown
- Observation scope
- combined RouteViews snapshot at 2026-11-06T20:00:00.000Z; route-views2, route-views6 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- ASN
- 1637 [Confirmed] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
- Allocating RIR
- ARIN [Confirmed] — https://www.iana.org/assignments/as-numbers/as-numbers-1.csv
- IPv4 prefixes
- 118 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- IPv4 address estimate
- 201728 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- IPv6 prefixes
- 1 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- Observed AS_PATH neighbour count
- 1 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- Observed AS_PATH neighbour sample
- AS27066 [Confirmed] — https://archive.routeviews.org/route-views2/bgpdata/2026.11/RIBS/rib.20261106.2000.bz2
- Organization status
- Unknown
- Assignment class
- Unknown
- Last updated
- Unknown