AS237 · US — Merit Network Inc.

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MERIT-AS-14 · ARIN · US

Identity source

AS237 ·

US Merit Network Inc.

NRO allocation data

83IPv4 prefixes

9IPv6 prefixes

29Observed neighbors

RPKIValid: 59 Invalid: 0 Not found: 33 Unknown: 0

Selected local snapshot coverage; not the whole Internet. BGP snapshots: ris-rrc00 10 Oct 16:00 UTC; routeviews2 10 Oct 22:00 UTC; routeviews6 10 Oct 22:00 UTC. Validator: 10 Oct 23:15 UTC. Publication-point issues: 88

Address space details

Overlapping originated prefixes counted once. IPv4 addresses: 2,221,568

IPv6 addresses: 158479294619101353141407318016

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Observed originated prefixes

These are observed BGP origins, not an inventory of registered allocations or transit reachability.

92 matching prefix–origin pairs. Each pair appears once; source observations are in Details.

Prefix	RPKI	Last observed	Details
23.135.208.0/24	Not Found	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI not_found routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI not_found
35.16.0.0/16	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.24.0.0/17	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.24.128.0/18	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.24.192.0/19	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.24.224.0/19	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.25.0.0/16	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.33.0.0/18	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.33.5.0/24	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.33.6.0/24	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.33.96.0/19	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.34.0.0/18	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.37.0.0/16	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.38.0.0/16	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.39.0.0/19	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.39.32.0/19	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.39.64.0/19	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.39.128.0/19	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.39.160.0/19	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.39.192.0/19	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.39.224.0/19	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.40.0.0/16	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.46.0.0/18	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.46.64.0/18	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid
35.50.0.0/17	Valid	10 Oct 22:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T22:00:00+00:00 · 1 selected peers · RPKI valid

Next rows

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Observed AS neighbors

29 unique neighbors in the selected local snapshots. This is the available collector dataset, not a complete map of the Internet. Adjacency does not establish upstream service or peering.

29 matching neighbors · 26–29 shown

Network	IPv4/IPv6	Seen in	Last observed	Details
AS394769 · US UMF-7-AS - University of Michigan - Flint	IPv4	ris-rrc00, routeviews2	10 Oct 22:00 UTC	Source observations ris-rrc00 · IPv4 · 10 Oct 16:00 UTC routeviews2 · IPv4 · 10 Oct 22:00 UTC
AS396470 · US LCC-EDU - Lansing Community College	IPv4	ris-rrc00, routeviews2	10 Oct 22:00 UTC	Source observations ris-rrc00 · IPv4 · 10 Oct 16:00 UTC routeviews2 · IPv4 · 10 Oct 22:00 UTC
AS400927 · US BARGER-CREEK - Barger Creek Wireless	IPv4	ris-rrc00, routeviews2	10 Oct 22:00 UTC	Source observations ris-rrc00 · IPv4 · 10 Oct 16:00 UTC routeviews2 · IPv4 · 10 Oct 22:00 UTC
AS402639 · US WASHTENAW-COMMUNITY-COLLEGE - Washtenaw	IPv4	ris-rrc00, routeviews2	10 Oct 22:00 UTC	Source observations ris-rrc00 · IPv4 · 10 Oct 16:00 UTC routeviews2 · IPv4 · 10 Oct 22:00 UTC

Previous neighbors

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View observed neighbor graph (up to 15 AS nodes)

Lines mean observed adjacency, with no commercial direction inferred. The table above provides the same evidence and source times.

Showing 14 of 29 matching neighbors, in table sort order, independent of table page.

Peering & locations

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Registry information

ARIN · fetched 10 Oct 21:05 UTC

Resource name: MERIT-AS-14
Handle: AS237
RDAP country: Not supplied
ASN: 237

Registered organizations

Merit Network Inc.

Last Changed: 21 Sep 18:13 UTC

Registration: 12 Sep 1988 04:00 UTC

Registry source

Allocation statistics

NRO/RIR delegated-extended records describe allocation or assignment ranges. They do not prove a BGP announcement or replace more-specific RDAP registration information. Country is the allocation record’s registration country, not the physical location of every address.

AS237–AS237 · arin · assigned · ASN allocation country: US · Allocation date: 1988-09-12 — NRO/RIR data · snapshot 10 Oct 00:00 UTC

NRO data and format

Prefix count history

Local observation changes

Only comparable successful snapshots are compared. First imports, changed peer coverage and collection gaps are baselines, not new global routes or withdrawals. RPKI transition history is not available before it has been recorded.

No retained changes are available for this resource.

Retained local prefix-count observations

Separate collector series. Missing rows are not zero. Peer-set changes are separate coverage, not a continuous trend.

Source	Snapshot	Family	Prefixes	Peer coverage
routeviews2	10 Oct 22:00 UTC	IPv4	83	140.192.8.16/IPv4
routeviews6	10 Oct 22:00 UTC	IPv6	9	2406:840:feed:2::1/IPv6
routeviews2	10 Oct 20:00 UTC	IPv4	83	140.192.8.16/IPv4
routeviews6	10 Oct 20:00 UTC	IPv6	9	2406:840:feed:2::1/IPv6
ris-rrc00	10 Oct 16:00 UTC	IPv4	83	2a00:5884::6/IPv6, 89.234.186.6/IPv4
ris-rrc00	10 Oct 16:00 UTC	IPv6	9	2a00:5884::6/IPv6, 89.234.186.6/IPv4
ris-rrc00	10 Oct 08:00 UTC	IPv4	83	2a00:5884::6/IPv6, 89.234.186.6/IPv4
ris-rrc00	10 Oct 08:00 UTC	IPv6	9	2a00:5884::6/IPv6, 89.234.186.6/IPv4