[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Sat Feb 25 17:05:39 UTC 2023
IPv4 R&E Routing Table Report 17:05 GMT Sat 25 Feb, 2023
IPv4 BGP Table (R&E) as seen at ASREN.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/
Analysis Summary
----------------
BGP routing table entries examined: 13724
Prefixes after maximum aggregation (per Origin AS): 8270
Deaggregation factor: 1.66
Unique aggregates announced (without unneeded subnets): 9186
Number of IPv4 prefixes with a valid ROA: 3530
Number of IPv4 prefixes with an invalid ROA: 0
Number of IPv4 prefixes with no ROA: 10194
Total ASes present in the Internet Routing Table: 2127
Prefixes per ASN: 6.45
Origin-only ASes present in the Internet Routing Table: 1844
Origin ASes announcing only one prefix: 846
Transit ASes present in the Internet Routing Table: 283
Transit-only ASes present in the Internet Routing Table: 43
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 14
Max AS path prepend of ASN ( 30116) 10
Prefixes from unregistered ASNs in the Routing Table: 3
Number of instances of unregistered ASNs: 3
Number of 32-bit ASNs allocated by the RIRs: 41293
Number of 32-bit ASNs visible in the Routing Table: 491
Prefixes from 32-bit ASNs in the Routing Table: 1337
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: 1
Number of addresses announced to Internet: 170281600
Equivalent to 10 /8s, 38 /16s and 74 /24s
Percentage of available address space announced: 4.6
Percentage of allocated address space announced: 4.6
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: 1441
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3474
Total APNIC prefixes after maximum aggregation: 1791
APNIC Deaggregation factor: 1.94
Prefixes being announced from the APNIC address blocks: 3475
Unique aggregates announced from the APNIC address blocks: 1964
APNIC Region origin ASes present in the Internet Routing Table: 444
APNIC Prefixes per ASN: 7.83
APNIC Region origin ASes announcing only one prefix: 203
APNIC Region transit ASes present in the Internet Routing Table: 49
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 178
Number of APNIC addresses announced to Internet: 38306912
Equivalent to 2 /8s, 72 /16s and 132 /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, 131072-151865
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: 6144
Total ARIN prefixes after maximum aggregation: 3610
ARIN Deaggregation factor: 1.70
Prefixes being announced from the ARIN address blocks: 6156
Unique aggregates announced from the ARIN address blocks: 4087
ARIN Region origin ASes present in the Internet Routing Table: 946
ARIN Prefixes per ASN: 6.51
ARIN Region origin ASes announcing only one prefix: 323
ARIN Region transit ASes present in the Internet Routing Table: 116
Average ARIN Region AS path length visible: 5.0
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 135
Number of ARIN addresses announced to Internet: 73862400
Equivalent to 4 /8s, 103 /16s and 13 /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, 393216-401308
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, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 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: 2903
Total RIPE prefixes after maximum aggregation: 2440
RIPE Deaggregation factor: 1.19
Prefixes being announced from the RIPE address blocks: 2896
Unique aggregates announced from the RIPE address blocks: 2525
RIPE Region origin ASes present in the Internet Routing Table: 566
RIPE Prefixes per ASN: 5.12
RIPE Region origin ASes announcing only one prefix: 260
RIPE Region transit ASes present in the Internet Routing Table: 83
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 12
Number of RIPE region 32-bit ASNs visible in the Routing Table: 127
Number of RIPE addresses announced to Internet: 55217536
Equivalent to 3 /8s, 74 /16s and 141 /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
196608-213403
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
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: 692
Total LACNIC prefixes after maximum aggregation: 357
LACNIC Deaggregation factor: 1.94
Prefixes being announced from the LACNIC address blocks: 688
Unique aggregates announced from the LACNIC address blocks: 513
LACNIC Region origin ASes present in the Internet Routing Table: 86
LACNIC Prefixes per ASN: 8.00
LACNIC Region origin ASes announcing only one prefix: 42
LACNIC Region transit ASes present in the Internet Routing Table: 19
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 9
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 30
Number of LACNIC addresses announced to Internet: 2022816
Equivalent to 0 /8s, 30 /16s and 221 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + 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: 508
Total AfriNIC prefixes after maximum aggregation: 69
AfriNIC Deaggregation factor: 7.36
Prefixes being announced from the AfriNIC address blocks: 508
Unique aggregates announced from the AfriNIC address blocks: 96
AfriNIC Region origin ASes present in the Internet Routing Table: 39
AfriNIC Prefixes per ASN: 13.03
AfriNIC Region origin ASes announcing only one prefix: 18
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 21
Number of AfriNIC addresses announced to Internet: 871680
Equivalent to 0 /8s, 13 /16s and 77 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 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
2907 590 2157 464 SINET-AS Research Organization of Infor
7497 435 182 24 CSTNET-AS-AP Computer Network Informati
4538 191 4192 73 ERX-CERNET-BKB China Education and Rese
58647 177 18 2 KAGAWAU-AS Kagawa University, JP
7575 173 329 119 AARNET-AS-AP Australian Academic and Re
55824 118 18 11 NKN-CORE-NW NKN Core Network, IN
4621 65 6 46 UNINET-AS-AP UNINET-, TH
2697 55 3 33 ERX-ERNET-AS Education and Research Net
45773 47 3 5 HECPERN-AS-PK PERN AS Content Servie Pr
9903 46 3 3 RIT-AS-AP Rajamangala Institute of Tech
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
5786 199 16 1 UPRENET, PR
376 198 178 147 RISQ-AS, CA
2152 152 507 91 CSUNET-NW, US
18558 134 18 4 NETBLK-RCOEK, US
270 120 329 85 AS270, US
23024 112 7 19 OCDE, US
2920 109 34 7 LACOE, US
32440 92 18 17 LONI, US
32531 90 6 60 FORDHAM-UNIVERSITY, US
21976 85 51 18 NJEDGE-NET, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 282 1919 249 DFN Verein zur Foerderung eines Deutsch
786 186 1775 183 JANET Jisc Services Limited, GB
559 115 550 106 SWITCH Peering requests: peering at switch
1103 96 1518 85 SURFNET-NL SURFnet, The Netherlands, NL
2614 94 27 74 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol
2200 64 599 59 FR-RENATER Reseau National de telecommu
200521 51 4 18 SEAP-AGE, ES
1653 50 151 47 SUNET SUNET Swedish University Network,
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 125 60 64 Rede Nacional de Ensino e Pesquisa, BR
11340 104 24 47 Red Universitaria Nacional, CL
1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 56 101 36 Fundacao Carlos Chagas Filho de Amparo
263683 32 10 20 Universidad de Costa Rica, CR
28571 31 38 13 UNIVERSIDADE DE SAO PAULO, BR
3597 23 2 17 Fundacion InnovaT, AR
27790 18 2 2 Universidad Nacional de Cordoba, AR
52888 18 7 9 UNIVERSIDADE FEDERAL DE SAO CARLOS, BR
28609 16 1 1 Instituto Nupef, BR
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 249 82 3 KENET-AS, KE
327687 59 28 3 RENU, UG
3208 32 2 1 ARN, DZ
37182 32 8 1 TERNET, TZ
327700 32 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37074 10 7 7 UG-AS, GH
37654 10 1 6 RwEdNet-AS, RW
2561 7 0 5 EUN, EG
328358 5 1 1 Makerere-AS, UG
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 590 2157 464 SINET-AS Research Organization of Infor
7497 435 182 24 CSTNET-AS-AP Computer Network Informati
680 282 1919 249 DFN Verein zur Foerderung eines Deutsch
36914 249 82 3 KENET-AS, KE
5786 199 16 1 UPRENET, PR
376 198 178 147 RISQ-AS, CA
4538 191 4192 73 ERX-CERNET-BKB China Education and Rese
786 186 1775 183 JANET Jisc Services Limited, GB
58647 177 18 2 KAGAWAU-AS Kagawa University, JP
7575 173 329 119 AARNET-AS-AP Australian Academic and Re
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 435 411 CSTNET-AS-AP Computer Network Information Cente
36914 249 246 KENET-AS, KE
5786 199 198 UPRENET, PR
58647 177 175 KAGAWAU-AS Kagawa University, JP
18558 134 130 NETBLK-RCOEK, US
4538 191 118 ERX-CERNET-BKB China Education and Research Net
55824 118 107 NKN-CORE-NW NKN Core Network, IN
2920 109 102 LACOE, US
23024 112 93 OCDE, US
1736 80 79 MU-AS, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
18621 UNALLOCATED 142.156.0.0/16 26677 ORION-ASN, CA
33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
192.31.196.0/24 Origin: 112 UNASSIGNED
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:2 /11:0 /12:9
/13:17 /14:33 /15:102 /16:1660 /17:294 /18:310
/19:416 /20:592 /21:629 /22:1041 /23:1146 /24:7311
/25:43 /26:48 /27:70 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 236 249 KENET-AS, KE
32440 77 92 LONI, US
23024 52 112 OCDE, US
37182 31 32 TERNET, TZ
200521 29 51 SEAP-AGE, ES
25977 27 30 HCCS, US
327700 27 32 MoRENet, MZ
36794 24 26 SCOCA, US
1916 22 125 Rede Nacional de Ensino e Pesquisa, BR
31638 21 21 ASN-LEPIDA, IT
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 5:15 8:2 12:1 14:89 23:4
24:3 31:3 35:6 38:6 41:136 42:11
44:4 45:20 46:5 49:6 58:12 59:9
60:4 61:2 62:6 63:3 64:29 65:1
66:5 67:34 68:1 69:12 70:2 71:1
72:7 74:16 76:38 77:4 78:3 79:10
80:8 81:27 82:1 83:6 84:5 85:24
87:1 89:10 91:35 93:4 94:2 95:2
96:5 101:4 102:12 103:210 104:70 108:6
109:3 110:2 111:16 114:1 116:6 118:18
119:21 121:28 122:8 123:8 124:39 125:1
128:62 129:28 130:85 131:54 132:46 133:149
134:67 136:198 137:82 138:9 139:5 140:30
141:1 142:39 143:17 144:23 145:2 146:93
147:22 148:7 149:12 150:99 151:9 152:67
153:6 154:6 155:40 156:67 157:21 158:33
159:114 160:27 161:16 162:15 163:72 164:7
165:11 167:11 168:57 169:8 170:19 172:2
173:7 175:25 177:7 179:8 180:16 182:1
185:31 186:2 187:3 188:12 189:3 190:6
191:1 192:1216 193:269 194:93 195:56 196:26
197:154 198:356 199:202 200:176 201:21 202:463
203:259 204:301 205:107 206:146 207:122 208:59
209:105 210:89 211:1 212:43 213:2 216:53
217:10 219:11 220:5 222:3 223:9
End of report
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