[REN-BGP-stats-all] IPv4 R&E Routing Table Report - BDREN (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sun May 18 19:05:58 UTC 2025
IPv4 R&E Routing Table Report 19:05 GMT Sun 18 May, 2025
IPv4 BGP Table (R&E) as seen at BDREN.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/BDREN/
Analysis Summary
----------------
BGP routing table entries examined: 297
Prefixes after maximum aggregation (per Origin AS): 127
Deaggregation factor: 2.34
Unique aggregates announced (without unneeded subnets): 153
Number of IPv4 prefixes with a valid ROA: 237
Number of IPv4 prefixes with an invalid ROA: 2
Number of IPv4 prefixes with no ROA: 58
Total ASes present in the Internet Routing Table: 119
Prefixes per ASN: 2.50
Origin-only ASes present in the Internet Routing Table: 72
Origin ASes announcing only one prefix: 43
Transit ASes present in the Internet Routing Table: 47
Transit-only ASes present in the Internet Routing Table: 40
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 12
Max AS path prepend of ASN (136911) 11
Prefixes from unregistered ASNs in the Routing Table: 0
Number of instances of unregistered ASNs: 0
Number of 32-bit ASNs allocated by the RIRs: 46451
Number of 32-bit ASNs visible in the Routing Table: 42
Prefixes from 32-bit ASNs in the Routing Table: 78
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 0
Number of addresses announced to Internet: 3469568
Equivalent to 0 /8s, 52 /16s and 241 /24s
Percentage of available address space announced: 0.1
Percentage of allocated address space announced: 0.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 32
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 190
Total APNIC prefixes after maximum aggregation: 56
APNIC Deaggregation factor: 3.39
Prefixes being announced from the APNIC address blocks: 190
Unique aggregates announced from the APNIC address blocks: 57
APNIC Region origin ASes present in the Internet Routing Table: 37
APNIC Prefixes per ASN: 5.14
APNIC Region origin ASes announcing only one prefix: 13
APNIC Region transit ASes present in the Internet Routing Table: 8
Average APNIC Region AS path length visible: 3.4
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 30
Number of APNIC addresses announced to Internet: 289280
Equivalent to 0 /8s, 4 /16s and 106 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-155961
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 64
Total ARIN prefixes after maximum aggregation: 44
ARIN Deaggregation factor: 1.45
Prefixes being announced from the ARIN address blocks: 64
Unique aggregates announced from the ARIN address blocks: 61
ARIN Region origin ASes present in the Internet Routing Table: 23
ARIN Prefixes per ASN: 2.78
ARIN Region origin ASes announcing only one prefix: 15
ARIN Region transit ASes present in the Internet Routing Table: 17
Average ARIN Region AS path length visible: 7.9
Max ARIN Region AS path length visible: 9
Number of ARIN region 32-bit ASNs visible in the Routing Table: 8
Number of ARIN addresses announced to Internet: 3039488
Equivalent to 0 /8s, 46 /16s and 97 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-402332
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8,
67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8,
74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8,
100/8, 104/8, 107/8, 108/8, 128/8, 129/8, 130/8,
131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8,
139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8,
148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8,
159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8,
167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8,
184/8, 192/8, 198/8, 199/8, 204/8, 205/8, 206/8,
207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 43
Total RIPE prefixes after maximum aggregation: 27
RIPE Deaggregation factor: 1.59
Prefixes being announced from the RIPE address blocks: 43
Unique aggregates announced from the RIPE address blocks: 35
RIPE Region origin ASes present in the Internet Routing Table: 19
RIPE Prefixes per ASN: 2.26
RIPE Region origin ASes announcing only one prefix: 15
RIPE Region transit ASes present in the Internet Routing Table: 11
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 11
Number of RIPE region 32-bit ASNs visible in the Routing Table: 4
Number of RIPE addresses announced to Internet: 140800
Equivalent to 0 /8s, 2 /16s and 38 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
53/8, 57/8, 62/8, 77/8, 78/8, 79/8, 80/8,
81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8,
88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8,
95/8, 109/8, 141/8, 145/8, 151/8, 176/8, 178/8,
185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8,
217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 0
Total LACNIC prefixes after maximum aggregation: 0
LACNIC Deaggregation factor: -nan
Prefixes being announced from the LACNIC address blocks: 0
Unique aggregates announced from the LACNIC address blocks: 0
LACNIC Region origin ASes present in the Internet Routing Table: 0
LACNIC Prefixes per ASN: -nan
LACNIC Region origin ASes announcing only one prefix: 0
LACNIC Region transit ASes present in the Internet Routing Table: 0
Average LACNIC Region AS path length visible: -nan
Max LACNIC Region AS path length visible: 0
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 0
Equivalent to 0 /8s, 0 /16s and 0 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 0
Total AfriNIC prefixes after maximum aggregation: 0
AfriNIC Deaggregation factor: -nan
Prefixes being announced from the AfriNIC address blocks: 0
Unique aggregates announced from the AfriNIC address blocks: 0
AfriNIC Region origin ASes present in the Internet Routing Table: 0
AfriNIC Prefixes per ASN: -nan
AfriNIC Region origin ASes announcing only one prefix: 0
AfriNIC Region transit ASes present in the Internet Routing Table: 0
Average AfriNIC Region AS path length visible: -nan
Max AfriNIC Region AS path length visible: 0
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 0
Equivalent to 0 /8s, 0 /16s and 0 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
55824 102 16 1 NKN-CORE-NW NKN Core Network, IN
63961 9 1 7 BDREN-UGC-AS-AP Bangladesh Research and E
55847 6 0 6 NKN-EDGE-NW NKN EDGE Network, IN
132365 5 0 3 BANGLADESHAGRICULTURALUNIVERSITY-AS-AP Ba
132806 5 0 1 KUET-AS-AP Khulna University of Engineeri
138462 5 0 1 RUET-AS-AP Rajshahi University of Enginee
135524 4 0 1 UNIVERSITYOFDHAKA-AS-AP university of dha
136004 4 0 3 RU-AC-AS-AP University of Rajshahi, BD
137974 4 0 1 GAU-AS-AP Gazipur Agricultural University
138578 3 0 1 EWU-AS-AP East West University, BD
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3 25 400 11 MIT-GATEWAYS, US
36375 9 120 5 UMICH-AS-5, US
231 3 192 2 MISU-231, US
237 3 24 3 MERIT-AS-14, US
3685 3 2 3 BUFFALO-ASN, US
103 2 0 2 NWU-AS, US
55209 2 0 2 HACKENSACKUMC, US
400927 2 0 1 BARGER-CREEK, US
2386 1 0 1 INS-AS, US
6356 1 0 1 NERDCNET, US
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
60187 20 4 5 LGFL-AS, GB
3241 3 0 2 EDI, LV
8605 3 2 3 LANET, LV
31638 2 0 2 ASN-LEPIDA, IT
224 1 0 1 UNINETT UNINETT, The Norwegian University
1853 1 0 1 ACONET ACOnet Backbone, AT
2108 1 16 1 CARNET-AS J.Marohnica 5, 10000 Zagreb, HR
8286 1 1 1 ACI-EDU-AS ZUT ACI Educational AS, PL
8678 1 1 1 ANKARA-NET, TR
12324 1 8 1 LUBMAN-EDU-AS Poland, Lublin, PL
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
55824 102 16 1 NKN-CORE-NW NKN Core Network, IN
3 25 400 11 MIT-GATEWAYS, US
60187 20 4 5 LGFL-AS, GB
36375 9 120 5 UMICH-AS-5, US
63961 9 1 7 BDREN-UGC-AS-AP Bangladesh Research and E
55847 6 0 6 NKN-EDGE-NW NKN EDGE Network, IN
132365 5 0 3 BANGLADESHAGRICULTURALUNIVERSITY-AS-AP Ba
132806 5 0 1 KUET-AS-AP Khulna University of Engineeri
138462 5 0 1 RUET-AS-AP Rajshahi University of Enginee
135524 4 0 1 UNIVERSITYOFDHAKA-AS-AP university of dha
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
60187 20 15 LGFL-AS, GB
3 25 14 MIT-GATEWAYS, US
36375 9 4 UMICH-AS-5, US
132806 5 4 KUET-AS-AP Khulna University of Engineering & T
138462 5 4 RUET-AS-AP Rajshahi University of Engineering &
135524 4 3 UNIVERSITYOFDHAKA-AS-AP university of dhaka, BD
137974 4 3 GAU-AS-AP Gazipur Agricultural University, BD
63961 9 2 BDREN-UGC-AS-AP Bangladesh Research and Educati
132365 5 2 BANGLADESHAGRICULTURALUNIVERSITY-AS-AP Banglade
138578 3 2 EWU-AS-AP East West University, BD
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-CIDRnet
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:0 /10:0 /11:0 /12:0
/13:1 /14:1 /15:1 /16:36 /17:2 /18:2
/19:10 /20:6 /21:15 /22:31 /23:15 /24:177
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
60187 18 20 LGFL-AS, GB
3241 3 3 EDI, LV
31638 2 2 ASN-LEPIDA, IT
224 1 1 UNINETT UNINETT, The Norwegian University & Research Network, NO
1853 1 1 ACONET ACOnet Backbone, AT
8605 1 3 LANET, LV
15798 1 1 OLMAN-EDU-AS OLMAN, Metropolitan Area Network educational AS, PL
55209 1 2 HACKENSACKUMC, US
60282 1 1 COVCITYCOUNCIL, GB
207012 1 1 GMINAOLSZTYN, PL
Complete listing at https://bgp.nsrc.org/REN/BDREN/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 5:16 8:2 12:2 14:92 23:6
24:1 35:2 103:50 160:1 161:2 182:1
End of report
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