[REN-BGP-stats-all] IPv4 R&E Routing Table Report - ASREN (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Mon Feb 28 17:05:29 UTC 2022
IPv4 R&E Routing Table Report 17:05 GMT Mon 28 Feb, 2022
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: 13883
Prefixes after maximum aggregation (per Origin AS): 8421
Deaggregation factor: 1.65
Unique aggregates announced (without unneeded subnets): 9176
Number of IPv4 prefixes with a valid ROA: 3189
Number of IPv4 prefixes with an invalid ROA: 0
Number of IPv4 prefixes with no ROA: 10694
Total ASes present in the Internet Routing Table: 2205
Prefixes per ASN: 6.30
Origin-only ASes present in the Internet Routing Table: 1914
Origin ASes announcing only one prefix: 908
Transit ASes present in the Internet Routing Table: 291
Transit-only ASes present in the Internet Routing Table: 35
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 14
Max AS path prepend of ASN ( 5474) 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: 38680
Number of 32-bit ASNs visible in the Routing Table: 506
Prefixes from 32-bit ASNs in the Routing Table: 1355
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: 1
Number of addresses announced to Internet: 176000512
Equivalent to 10 /8s, 125 /16s and 142 /24s
Percentage of available address space announced: 4.8
Percentage of allocated address space announced: 4.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.5
Total number of prefixes smaller than registry allocations: 1383
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3312
Total APNIC prefixes after maximum aggregation: 1740
APNIC Deaggregation factor: 1.90
Prefixes being announced from the APNIC address blocks: 3313
Unique aggregates announced from the APNIC address blocks: 1888
APNIC Region origin ASes present in the Internet Routing Table: 426
APNIC Prefixes per ASN: 7.78
APNIC Region origin ASes announcing only one prefix: 190
APNIC Region transit ASes present in the Internet Routing Table: 51
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 13
Number of APNIC region 32-bit ASNs visible in the Routing Table: 171
Number of APNIC addresses announced to Internet: 38268128
Equivalent to 2 /8s, 71 /16s and 236 /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: 6241
Total ARIN prefixes after maximum aggregation: 3738
ARIN Deaggregation factor: 1.67
Prefixes being announced from the ARIN address blocks: 6254
Unique aggregates announced from the ARIN address blocks: 4179
ARIN Region origin ASes present in the Internet Routing Table: 984
ARIN Prefixes per ASN: 6.36
ARIN Region origin ASes announcing only one prefix: 364
ARIN Region transit ASes present in the Internet Routing Table: 115
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: 133
Number of ARIN addresses announced to Internet: 77945408
Equivalent to 4 /8s, 165 /16s and 90 /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: 2796
Total RIPE prefixes after maximum aggregation: 2394
RIPE Deaggregation factor: 1.17
Prefixes being announced from the RIPE address blocks: 2787
Unique aggregates announced from the RIPE address blocks: 2439
RIPE Region origin ASes present in the Internet Routing Table: 561
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 270
RIPE Region transit ASes present in the Internet Routing Table: 87
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 117
Number of RIPE addresses announced to Internet: 55137536
Equivalent to 3 /8s, 73 /16s and 85 /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: 1136
Total LACNIC prefixes after maximum aggregation: 473
LACNIC Deaggregation factor: 2.40
Prefixes being announced from the LACNIC address blocks: 1134
Unique aggregates announced from the LACNIC address blocks: 573
LACNIC Region origin ASes present in the Internet Routing Table: 151
LACNIC Prefixes per ASN: 7.51
LACNIC Region origin ASes announcing only one prefix: 61
LACNIC Region transit ASes present in the Internet Routing Table: 23
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 60
Number of LACNIC addresses announced to Internet: 3711968
Equivalent to 0 /8s, 56 /16s and 163 /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: 394
Total AfriNIC prefixes after maximum aggregation: 72
AfriNIC Deaggregation factor: 5.47
Prefixes being announced from the AfriNIC address blocks: 394
Unique aggregates announced from the AfriNIC address blocks: 96
AfriNIC Region origin ASes present in the Internet Routing Table: 44
AfriNIC Prefixes per ASN: 8.95
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 7
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25
Number of AfriNIC addresses announced to Internet: 937216
Equivalent to 0 /8s, 14 /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 577 2156 458 SINET-AS Research Organization of Infor
7497 426 177 19 CSTNET-AS-AP Computer Network Informati
58647 179 18 2 KAGAWAU-AS Kagawa University, JP
4538 176 4192 72 ERX-CERNET-BKB China Education and Rese
7575 175 330 122 AARNET-AS-AP Australian Academic and Re
55824 116 18 13 NKN-CORE-NW NKN Core Network, IN
2697 53 3 32 ERX-ERNET-AS Education and Research Net
132524 49 9 11 TIFR-AS Tata Institute of Fundamental R
45773 47 3 5 HECPERN-AS-PK PERN AS Content Servie Pr
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
376 202 178 151 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
2152 145 507 86 CSUNET-NW, US
18558 136 18 4 NETBLK-RCOEK, US
270 119 329 88 AS270, US
2920 111 34 6 LACOE, US
21976 85 51 18 NJEDGE-NET, US
1736 80 16 1 MU-AS, US
3477 75 71 44 NOAA-NWAVE, US
22742 69 53 34 CT-EDU-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
680 278 1950 245 DFN Verein zur Foerderung eines Deutsch
786 186 1774 183 JANET Jisc Services Limited, GB
559 115 550 106 SWITCH Peering requests: peering at switch
1103 99 1520 86 SURFNET-NL SURFnet, The Netherlands, NL
137 82 677 77 ASGARR Consortium GARR, IT
2200 66 647 61 FR-RENATER Reseau National de telecommu
2614 62 30 59 ROEDUNET, RO
1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol
1653 51 167 48 SUNET SUNET Swedish University Network,
1741 40 165 19 FUNETAS, FI
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 193 208 46 Rede Nacional de Ensino e Pesquisa, BR
11340 95 24 54 Red Universitaria Nacional, CL
1251 60 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
4270 44 16 1 Red de Interconexion Universitaria, AR
61468 41 3 15 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
28571 35 26 15 UNIVERSIDADE DE SAO PAULO, BR
20191 31 16 1 Pontificia Universidad Catolica de Chil
271640 27 8 1 UNIVERSIDADE FEDERAL DE VICOSA, 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 201 82 3 KENET-AS, KE
327687 40 28 3 RENU, UG
327700 34 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37182 13 8 1 TERNET, TZ
2561 10 1 8 EUN, EG
37074 10 7 7 UG-AS, GH
31960 5 1 1 EMUNET, MZ
328358 5 1 1 Makerere-AS, UG
328903 4 0 1 RITER, CI
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 577 2156 458 SINET-AS Research Organization of Infor
7497 426 177 19 CSTNET-AS-AP Computer Network Informati
680 278 1950 245 DFN Verein zur Foerderung eines Deutsch
376 202 178 151 RISQ-AS, CA
36914 201 82 3 KENET-AS, KE
5786 200 16 1 UPRENET, PR
1916 193 208 46 Rede Nacional de Ensino e Pesquisa, BR
786 186 1774 183 JANET Jisc Services Limited, GB
58647 179 18 2 KAGAWAU-AS Kagawa University, JP
4538 176 4192 72 ERX-CERNET-BKB China Education and Rese
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 426 407 CSTNET-AS-AP Computer Network Information Cente
5786 200 199 UPRENET, PR
36914 201 198 KENET-AS, KE
58647 179 177 KAGAWAU-AS Kagawa University, JP
1916 193 147 Rede Nacional de Ensino e Pesquisa, BR
18558 136 132 NETBLK-RCOEK, US
2920 111 105 LACOE, US
4538 176 104 ERX-CERNET-BKB China Education and Research Net
55824 116 103 NKN-CORE-NW NKN Core Network, IN
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
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, US
19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US
395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, 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
192.88.99.0/24 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
/13:16 /14:33 /15:102 /16:1733 /17:299 /18:328
/19:447 /20:665 /21:699 /22:1099 /23:1140 /24:7177
/25:41 /26:49 /27:43 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
36914 188 201 KENET-AS, KE
23024 53 56 OCDE, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
327700 30 34 MoRENet, MZ
25977 29 43 HCCS, US
32440 29 44 LONI, US
1916 22 193 Rede Nacional de Ensino e Pesquisa, BR
31638 21 21 ASN-LEPIDA, IT
2614 19 62 ROEDUNET, RO
3233 19 29 ICI-ROTLD Romanian National R&D Network, RO
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 14:84 23:3
24:3 31:1 38:5 40:1 41:116 42:10
44:4 45:29 46:6 49:10 58:7 59:8
60:4 61:2 62:6 63:3 64:26 66:6
67:40 68:1 69:17 70:1 71:1 72:10
74:12 76:33 77:7 78:3 79:10 80:7
81:27 82:1 83:6 84:3 85:19 86:4
87:1 88:1 89:10 91:31 93:16 94:2
95:4 96:5 101:4 102:12 103:234 104:6
106:1 108:8 109:3 110:3 111:16 112:4
114:1 116:5 118:17 119:22 121:27 122:8
123:8 124:39 125:1 128:63 129:35 130:90
131:84 132:53 133:141 134:68 136:191 137:86
138:8 139:4 140:33 141:2 142:41 143:23
144:23 145:2 146:114 147:23 148:7 149:13
150:10 151:6 152:63 153:6 154:3 155:39
156:67 157:26 158:39 159:115 160:25 161:18
162:16 163:59 164:24 165:17 166:2 167:16
168:53 169:10 170:48 172:1 173:1 175:19
177:10 178:1 179:8 180:16 182:6 184:2
185:26 186:3 187:19 188:12 189:5 190:42
191:10 192:1223 193:190 194:95 195:48 196:25
197:112 198:386 199:224 200:214 201:38 202:353
203:190 204:295 205:143 206:159 207:141 208:56
209:93 210:88 212:20 213:2 216:55 217:13
218:3 219:11 220:2 222:3 223:4
End of report
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