[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Fri Sep 16 17:05:40 UTC 2022
IPv4 R&E Routing Table Report 17:05 GMT Fri 16 Sep, 2022
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: 12609
Prefixes after maximum aggregation (per Origin AS): 7694
Deaggregation factor: 1.64
Unique aggregates announced (without unneeded subnets): 8468
Number of IPv4 prefixes with a valid ROA: 3476
Number of IPv4 prefixes with an invalid ROA: 47
Number of IPv4 prefixes with no ROA: 9086
Total ASes present in the Internet Routing Table: 1980
Prefixes per ASN: 6.37
Origin-only ASes present in the Internet Routing Table: 1703
Origin ASes announcing only one prefix: 821
Transit ASes present in the Internet Routing Table: 277
Transit-only ASes present in the Internet Routing Table: 42
Paths with bogon ASNs present in the IPv4 Routing Table: 0
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 15
Max AS path prepend of ASN ( 1149) 11
Prefixes from unregistered ASNs in the Routing Table: 4
Number of instances of unregistered ASNs: 4
Number of 32-bit ASNs allocated by the RIRs: 40161
Number of 32-bit ASNs visible in the Routing Table: 475
Prefixes from 32-bit ASNs in the Routing Table: 1272
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 2
Number of addresses announced to Internet: 161139552
Equivalent to 9 /8s, 154 /16s and 203 /24s
Percentage of available address space announced: 4.4
Percentage of allocated address space announced: 4.4
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: 1285
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3272
Total APNIC prefixes after maximum aggregation: 1737
APNIC Deaggregation factor: 1.88
Prefixes being announced from the APNIC address blocks: 3273
Unique aggregates announced from the APNIC address blocks: 1860
APNIC Region origin ASes present in the Internet Routing Table: 441
APNIC Prefixes per ASN: 7.42
APNIC Region origin ASes announcing only one prefix: 209
APNIC Region transit ASes present in the Internet Routing Table: 52
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: 180
Number of APNIC addresses announced to Internet: 38284544
Equivalent to 2 /8s, 72 /16s and 45 /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: 5182
Total ARIN prefixes after maximum aggregation: 3063
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 5191
Unique aggregates announced from the ARIN address blocks: 3522
ARIN Region origin ASes present in the Internet Routing Table: 779
ARIN Prefixes per ASN: 6.66
ARIN Region origin ASes announcing only one prefix: 277
ARIN Region transit ASes present in the Internet Routing Table: 108
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: 112
Number of ARIN addresses announced to Internet: 63534976
Equivalent to 3 /8s, 201 /16s and 119 /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: 2876
Total RIPE prefixes after maximum aggregation: 2432
RIPE Deaggregation factor: 1.18
Prefixes being announced from the RIPE address blocks: 2868
Unique aggregates announced from the RIPE address blocks: 2514
RIPE Region origin ASes present in the Internet Routing Table: 563
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 262
RIPE Region transit ASes present in the Internet Routing Table: 81
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 15
Number of RIPE region 32-bit ASNs visible in the Routing Table: 122
Number of RIPE addresses announced to Internet: 55257984
Equivalent to 3 /8s, 75 /16s and 43 /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: 864
Total LACNIC prefixes after maximum aggregation: 396
LACNIC Deaggregation factor: 2.18
Prefixes being announced from the LACNIC address blocks: 864
Unique aggregates announced from the LACNIC address blocks: 479
LACNIC Region origin ASes present in the Internet Routing Table: 123
LACNIC Prefixes per ASN: 7.02
LACNIC Region origin ASes announcing only one prefix: 59
LACNIC Region transit ASes present in the Internet Routing Table: 23
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: 49
Number of LACNIC addresses announced to Internet: 3271520
Equivalent to 0 /8s, 49 /16s and 235 /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: 411
Total AfriNIC prefixes after maximum aggregation: 62
AfriNIC Deaggregation factor: 6.63
Prefixes being announced from the AfriNIC address blocks: 411
Unique aggregates announced from the AfriNIC address blocks: 91
AfriNIC Region origin ASes present in the Internet Routing Table: 28
AfriNIC Prefixes per ASN: 14.68
AfriNIC Region origin ASes announcing only one prefix: 14
AfriNIC Region transit ASes present in the Internet Routing Table: 7
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 12
Number of AfriNIC addresses announced to Internet: 790016
Equivalent to 0 /8s, 12 /16s and 14 /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 575 2156 458 SINET-AS Research Organization of Infor
7497 427 177 19 CSTNET-AS-AP Computer Network Informati
4538 187 4192 73 ERX-CERNET-BKB China Education and Rese
7575 175 329 121 AARNET-AS-AP Australian Academic and Re
58647 175 18 2 KAGAWAU-AS Kagawa University, JP
55824 115 18 11 NKN-CORE-NW NKN Core Network, IN
2697 54 3 32 ERX-ERNET-AS Education and Research Net
132524 44 9 11 TIFR-AS Tata Institute of Fundamental R
9270 33 5 6 APAN-KR-AS National Infomation Society
24361 33 56 17 CNGI-NJ-IX-AS-AP CERNET2 IX at Southeas
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
376 201 178 151 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
2152 159 507 91 CSUNET-NW, US
18558 137 18 4 NETBLK-RCOEK, US
270 120 329 85 AS270, US
23024 113 7 19 OCDE, US
2920 111 34 7 LACOE, US
32531 90 6 60 FORDHAM-UNIVERSITY, US
21976 87 51 18 NJEDGE-NET, US
1736 81 16 1 MU-AS, 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
680 281 1935 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 99 1520 87 SURFNET-NL SURFnet, The Netherlands, NL
2614 95 27 75 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
2200 64 599 59 FR-RENATER Reseau National de telecommu
1930 58 81 53 RCCN Fundacao para a Ciencia e a Tecnol
200521 52 4 20 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 155 193 47 Rede Nacional de Ensino e Pesquisa, BR
11340 96 24 54 Red Universitaria Nacional, CL
1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
28571 38 39 17 UNIVERSIDADE DE SAO PAULO, BR
61468 37 2 13 CEDIA, EC
263683 32 10 20 Universidad de Costa Rica, CR
20191 31 16 1 Pontificia Universidad Catolica de Chil
271640 27 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
3597 23 2 17 Fundacion InnovaT, AR
28068 20 1 1 Universidad Nacional de San Luis, AR
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 245 82 3 KENET-AS, KE
327687 38 28 3 RENU, UG
327700 33 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37182 17 1 13 TERNET, TZ
37654 10 1 6 RwEdNet-AS, RW
2561 7 0 5 EUN, EG
37215 5 8 1 MAREN, MW
30983 4 4 1 MARWAN-AS, MA
328813 4 0 1 UCU-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 575 2156 458 SINET-AS Research Organization of Infor
7497 427 177 19 CSTNET-AS-AP Computer Network Informati
680 281 1935 249 DFN Verein zur Foerderung eines Deutsch
36914 245 82 3 KENET-AS, KE
376 201 178 151 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
4538 187 4192 73 ERX-CERNET-BKB China Education and Rese
786 186 1775 183 JANET Jisc Services Limited, GB
7575 175 329 121 AARNET-AS-AP Australian Academic and Re
58647 175 18 2 KAGAWAU-AS Kagawa University, JP
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 427 408 CSTNET-AS-AP Computer Network Information Cente
36914 245 242 KENET-AS, KE
5786 200 199 UPRENET, PR
58647 175 173 KAGAWAU-AS Kagawa University, JP
18558 137 133 NETBLK-RCOEK, US
4538 187 114 ERX-CERNET-BKB China Education and Research Net
1916 155 108 Rede Nacional de Ensino e Pesquisa, BR
55824 115 104 NKN-CORE-NW NKN Core Network, IN
2920 111 104 LACOE, US
23024 113 94 OCDE, 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
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US
395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-spar
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
192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Transit: 20965 GEANT The GEANT IP Service, 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 /15:100 /16:1541 /17:251 /18:269
/19:380 /20:568 /21:602 /22:934 /23:1071 /24:6648
/25:53 /26:53 /27:77 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 232 245 KENET-AS, KE
23024 53 113 OCDE, US
32440 48 50 LONI, US
200521 31 52 SEAP-AGE, ES
25977 28 31 HCCS, US
327700 28 33 MoRENet, MZ
31638 21 21 ASN-LEPIDA, IT
1916 19 155 Rede Nacional de Ensino e Pesquisa, BR
3233 19 29 ICI-ROTLD Romanian National R&D Network, RO
22742 18 67 CT-EDU-NET, US
Complete listing at https://bgp.nsrc.org/REN/ASREN/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
5:15 8:2 12:1 14:86 24:2 31:2
35:4 38:4 41:126 42:11 44:4 45:18
46:5 49:10 58:11 59:9 60:4 61:2
62:6 64:16 65:1 66:4 67:33 68:1
69:12 70:2 72:7 74:8 76:4 77:3
78:3 79:10 80:7 81:27 82:1 83:6
84:6 85:23 86:3 87:1 88:1 89:10
91:34 93:4 94:2 95:4 96:5 101:4
102:7 103:232 104:68 108:3 109:3 110:2
111:5 114:1 116:6 118:18 119:22 121:27
122:8 123:8 124:39 125:1 128:62 129:28
130:85 131:65 132:49 133:145 134:69 136:199
137:41 138:11 139:4 140:30 141:1 142:19
143:19 144:23 145:2 146:115 147:19 148:7
149:12 150:99 151:2 152:8 153:6 154:5
155:25 156:66 157:23 158:38 159:114 160:26
161:17 162:9 163:70 164:6 165:12 167:11
168:32 169:8 170:14 172:2 173:6 175:24
177:6 179:9 180:17 181:1 182:4 185:31
186:2 187:3 188:12 189:3 190:31 191:1
192:1087 193:237 194:92 195:57 196:22 197:147
198:317 199:179 200:192 201:19 202:350 203:179
204:291 205:89 206:138 207:133 208:53 209:91
210:84 212:45 213:2 216:48 217:10 219:11
220:3 222:4 223:6
End of report
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