AS49 · US — National Institute of Standards and Technology

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US-NATIONAL-INSTITUTE-OF-STANDARDS-AND-TECHNOLOGY · ARIN · US

Identity source

AS49 ·

US National Institute of Standards and Technology

NRO allocation data

23IPv4 prefixes

7IPv6 prefixes

3Observed neighbors

RPKIValid: 30 Invalid: 0 Not found: 0 Unknown: 0

Selected local snapshot coverage; not the whole Internet. BGP snapshots: ris-rrc00 10 Oct 16:00 UTC; routeviews2 10 Oct 20:00 UTC; routeviews6 10 Oct 20:00 UTC. Validator: 10 Oct 22:14 UTC. Publication-point issues: 87

Address space details

Overlapping originated prefixes counted once. IPv4 addresses: 65,536

IPv6 addresses: 2483133633488448324846485504

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Observed originated prefixes

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

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

Prefix	RPKI	Last observed	Details
129.6.0.0/21	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.8.0/22	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.12.0/23	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.14.0/24	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.15.0/24	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.16.0/21	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.24.0/22	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.28.0/24	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.29.0/24	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.30.0/24	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.31.0/24	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.32.0/22	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.36.0/24	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.38.0/23	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.40.0/21	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.48.0/23	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.50.0/24	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.52.0/22	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.56.0/21	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.64.0/18	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
129.6.128.0/17	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
132.163.96.0/24	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
132.163.97.0/24	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews2 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
2610:20:6000::/37	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews6 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid
2610:20:6f15::/48	Valid	10 Oct 20:00 UTC	2 source observations ris-rrc00 · 2026-10-10T16:00:00+00:00 · 1 selected peers · RPKI valid routeviews6 · 2026-10-10T20:00:00+00:00 · 1 selected peers · RPKI valid

Next rows

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Observed AS neighbors

3 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.

3 matching neighbors · 1–3 shown

Network	IPv4/IPv6	Seen in	Last observed	Details
AS3356 · US Level 3 Parent, LLC	IPv4, IPv6	ris-rrc00, routeviews2, routeviews6	10 Oct 20:00 UTC	Source observations ris-rrc00 · IPv4 · 10 Oct 16:00 UTC routeviews2 · IPv4 · 10 Oct 20:00 UTC ris-rrc00 · IPv6 · 10 Oct 16:00 UTC routeviews6 · IPv6 · 10 Oct 20:00 UTC
AS3477 · US NOAA-NWAVE - National Oceanic and Atmospheric Administration	IPv4, IPv6	ris-rrc00, routeviews2, routeviews6	10 Oct 20:00 UTC	Source observations ris-rrc00 · IPv4 · 10 Oct 16:00 UTC routeviews2 · IPv4 · 10 Oct 20:00 UTC ris-rrc00 · IPv6 · 10 Oct 16:00 UTC routeviews6 · IPv6 · 10 Oct 20:00 UTC
AS13335 · US Cloudflare, Inc.	IPv4, IPv6	ris-rrc00, routeviews2, routeviews6	10 Oct 20:00 UTC	Source observations ris-rrc00 · IPv4 · 10 Oct 16:00 UTC routeviews2 · IPv4 · 10 Oct 20:00 UTC ris-rrc00 · IPv6 · 10 Oct 16:00 UTC routeviews6 · IPv6 · 10 Oct 20:00 UTC

Clear neighbor filters

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 3 of 3 matching neighbors, in table sort order, independent of table page.

Peering & locations

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Registry information

ARIN · fetched 10 Oct 20:09 UTC

Resource name: US-NATIONAL-INSTITUTE-OF-STANDARDS-AND-TECHNOLOGY
Handle: AS49
RDAP country: Not supplied
ASN: 49

Registered organizations

National Institute of Standards and Technology

Last Changed: 11 Sep 2024 16:27 UTC

Registration: 04 Sep 1985 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.

AS49–AS49 · arin · assigned · ASN allocation country: US · Allocation date: 1985-09-04 — 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 20:00 UTC	IPv4	23	140.192.8.16/IPv4
routeviews6	10 Oct 20:00 UTC	IPv6	7	2406:840:feed:2::1/IPv6
routeviews2	10 Oct 18:00 UTC	IPv4	23	140.192.8.16/IPv4
routeviews6	10 Oct 18:00 UTC	IPv6	7	2406:840:feed:2::1/IPv6
ris-rrc00	10 Oct 16:00 UTC	IPv4	23	2a00:5884::6/IPv6, 89.234.186.6/IPv4
ris-rrc00	10 Oct 16:00 UTC	IPv6	7	2a00:5884::6/IPv6, 89.234.186.6/IPv4
ris-rrc00	10 Oct 08:00 UTC	IPv4	23	2a00:5884::6/IPv6, 89.234.186.6/IPv4
ris-rrc00	10 Oct 08:00 UTC	IPv6	7	2a00:5884::6/IPv6, 89.234.186.6/IPv4