[REN-BGP-stats-all] Global R&E Routing Table Report - CERNET R&E view
REN Routing Table Report
cscora at frr.nsrc.org
Tue Jul 6 20:10:42 UTC 2021
Global R&E Routing Table Report 20:10 GMT Tue 06 Jul, 2021
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/CERNET/
Analysis Summary
----------------
BGP routing table entries examined: 14519
Prefixes after maximum aggregation (per Origin AS): 7595
Deaggregation factor: 1.91
Unique aggregates announced (without unneeded subnets): 8857
Total ASes present in the Internet Routing Table: 2147
Prefixes per ASN: 6.76
Origin-only ASes present in the Internet Routing Table: 1851
Origin ASes announcing only one prefix: 845
Transit ASes present in the Internet Routing Table: 296
Transit-only ASes present in the Internet Routing Table: 55
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 14
Max AS path prepend of ASN ( 10497) 11
Prefixes from unregistered ASNs in the Routing Table: 16
Number of instances of unregistered ASNs: 16
Number of 32-bit ASNs allocated by the RIRs: 36546
Number of 32-bit ASNs visible in the Routing Table: 471
Prefixes from 32-bit ASNs in the Routing Table: 1399
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: 3
Number of addresses announced to Internet: 152238592
Equivalent to 9 /8s, 18 /16s and 250 /24s
Percentage of available address space announced: 4.1
Percentage of allocated address space announced: 4.1
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: 1497
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 3823
Total APNIC prefixes after maximum aggregation: 2144
APNIC Deaggregation factor: 1.78
Prefixes being announced from the APNIC address blocks: 3825
Unique aggregates announced from the APNIC address blocks: 2523
APNIC Region origin ASes present in the Internet Routing Table: 529
APNIC Prefixes per ASN: 7.23
APNIC Region origin ASes announcing only one prefix: 230
APNIC Region transit ASes present in the Internet Routing Table: 49
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 13
Number of APNIC region 32-bit ASNs visible in the Routing Table: 196
Number of APNIC addresses announced to Internet: 45116672
Equivalent to 2 /8s, 176 /16s and 109 /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, 131072-147769
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: 7387
Total ARIN prefixes after maximum aggregation: 4062
ARIN Deaggregation factor: 1.82
Prefixes being announced from the ARIN address blocks: 7401
Unique aggregates announced from the ARIN address blocks: 4615
ARIN Region origin ASes present in the Internet Routing Table: 1133
ARIN Prefixes per ASN: 6.53
ARIN Region origin ASes announcing only one prefix: 425
ARIN Region transit ASes present in the Internet Routing Table: 156
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 146
Number of ARIN addresses announced to Internet: 86930688
Equivalent to 5 /8s, 46 /16s and 117 /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: 882
Total RIPE prefixes after maximum aggregation: 603
RIPE Deaggregation factor: 1.46
Prefixes being announced from the RIPE address blocks: 881
Unique aggregates announced from the RIPE address blocks: 615
RIPE Region origin ASes present in the Internet Routing Table: 204
RIPE Prefixes per ASN: 4.32
RIPE Region origin ASes announcing only one prefix: 98
RIPE Region transit ASes present in the Internet Routing Table: 34
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 12
Number of RIPE region 32-bit ASNs visible in the Routing Table: 29
Number of RIPE addresses announced to Internet: 13350400
Equivalent to 0 /8s, 203 /16s and 182 /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: 1529
Total LACNIC prefixes after maximum aggregation: 585
LACNIC Deaggregation factor: 2.61
Prefixes being announced from the LACNIC address blocks: 1527
Unique aggregates announced from the LACNIC address blocks: 801
LACNIC Region origin ASes present in the Internet Routing Table: 174
LACNIC Prefixes per ASN: 8.78
LACNIC Region origin ASes announcing only one prefix: 69
LACNIC Region transit ASes present in the Internet Routing Table: 27
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 12
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 73
Number of LACNIC addresses announced to Internet: 4205312
Equivalent to 0 /8s, 64 /16s and 43 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-272796 + 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: 882
Total AfriNIC prefixes after maximum aggregation: 186
AfriNIC Deaggregation factor: 4.74
Prefixes being announced from the AfriNIC address blocks: 882
Unique aggregates announced from the AfriNIC address blocks: 300
AfriNIC Region origin ASes present in the Internet Routing Table: 48
AfriNIC Prefixes per ASN: 18.38
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27
Number of AfriNIC addresses announced to Internet: 2630912
Equivalent to 0 /8s, 40 /16s and 37 /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 607 2155 455 SINET-AS Research Organization of Infor
1237 189 75 137 KREONET-AS-KR KISTI, KR
7575 180 330 126 AARNET-AS-AP Australian Academic and Re
58647 164 18 2 KAGAWAU-AS Kagawa University, JP
55824 129 19 23 NKN-CORE-NW NKN Core Network, IN
4538 111 4160 69 ERX-CERNET-BKB China Education and Rese
4621 81 37 10 UNINET-AS-AP UNINET-, TH
4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T
23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
2697 55 3 31 ERX-ERNET-AS Education and Research Net
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7896 245 51 7 NU-AS, US
376 235 180 158 RISQ-AS, CA
5786 201 16 1 UPRENET, PR
2152 153 507 86 CSUNET-NW, US
18558 137 18 4 NETBLK-RCOEK, US
2920 109 34 6 LACOE, US
21976 86 51 18 NJEDGE-NET, US
1736 80 16 1 MU-AS, US
3 78 528 13 MIT-GATEWAYS, US
22742 67 52 31 CT-EDU-NET, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8895 141 24 4 ISU Internet Services Unit ISU, SA
1103 98 1520 85 SURFNET-NL SURFnet, The Netherlands, NL
1653 52 151 49 SUNET SUNET Swedish University Network,
1741 43 183 22 FUNETAS, FI
288 26 5 26 ESA Robert Bosch Strasse 5, DE
3267 20 67 17 RUNNET, RU
8674 16 2 11 NETNOD-IX Netnod Internet Exchange Sver
224 13 256 13 UNINETT UNINETT, The Norwegian Universi
29384 13 3 9 QATAR-FOUNDATION, QA
47862 13 1 5 ANKABUT, AE
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 178 207 41 Associacao Rede Nacional de Ensino e Pe
28391 152 10 66 Universidad Juarez Autonoma de Tabasco,
27884 97 6 2 CABLECOLOR S.A., HN
11340 94 24 54 Red Universitaria Nacional, CL
1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 60 102 40 Fundacao Carlos Chagas Filho de Amparo
4270 44 16 1 Red de Interconexion Universitaria, AR
19611 44 17 2 Associacao Antonio Vieira - Unisinos, B
61468 41 3 15 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2018 324 319 74 TENET-1, ZA
327687 136 28 3 RENU, UG
36914 97 82 3 KENET-AS, KE
2561 75 5 33 EUN, EG
8094 55 48 4 PUKNET, ZA
327700 38 16 1 MoRENet, MZ
37215 30 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37074 11 8 2 UG-AS, GH
37182 11 8 1 TERNET, TZ
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 607 2155 455 SINET-AS Research Organization of Infor
2018 324 319 74 TENET-1, ZA
7896 245 51 7 NU-AS, US
376 235 180 158 RISQ-AS, CA
5786 201 16 1 UPRENET, PR
1237 189 75 137 KREONET-AS-KR KISTI, KR
7575 180 330 126 AARNET-AS-AP Australian Academic and Re
1916 178 207 41 Associacao Rede Nacional de Ensino e Pe
58647 164 18 2 KAGAWAU-AS Kagawa University, JP
2152 153 507 86 CSUNET-NW, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
2018 324 250 TENET-1, ZA
7896 245 238 NU-AS, US
5786 201 200 UPRENET, PR
58647 164 162 KAGAWAU-AS Kagawa University, JP
1916 178 137 Associacao Rede Nacional de Ensino e Pesquisa,
8895 141 137 ISU Internet Services Unit ISU, SA
18558 137 133 NETBLK-RCOEK, US
327687 136 133 RENU, UG
55824 129 106 NKN-CORE-NW NKN Core Network, IN
2920 109 103 LACOE, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
36843 UNALLOCATED 64.56.80.0/23 11096 FLORIDANET, US
19658 UNALLOCATED 65.205.131.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 108.59.20.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 108.59.23.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 131.91.183.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 131.91.252.0/22 11096 FLORIDANET, US
36843 UNALLOCATED 146.201.218.0/24 11096 FLORIDANET, US
36843 UNALLOCATED 146.201.219.0/24 11096 FLORIDANET, US
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
36843 UNALLOCATED 162.223.23.0/24 11096 FLORIDANET, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-badAS
Prefixes from private and non-routed address space (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/CERNET/data-dsua
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
164.160.240.0/20 Origin: 328439 UNASSIGNED
Transit: 327992 GHANAIAN-ACADEMIC-AND-RESEARCH-NETWORK,
192.31.196.0/24 Origin: 112 UNASSIGNED
Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL
Transit: 11537 INTERNET2-RESEARCH-EDU, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/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 /11:1 /12:9
/13:16 /14:26 /15:84 /16:1397 /17:326 /18:369
/19:468 /20:698 /21:647 /22:1053 /23:1102 /24:8320
/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
8895 136 141 ISU Internet Services Unit ISU, SA
27884 94 97 CABLECOLOR S.A., HN
36914 84 97 KENET-AS, KE
23024 53 56 OCDE, US
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
327700 32 38 MoRENet, MZ
25977 31 45 HCCS, US
263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
27609 29 45 USC-UNIVERSITY-HOSPITAL, US
32440 29 44 LONI, US
Complete listing at https://bgp.nsrc.org/REN/CERNET/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 8:2 12:1 14:84 18:41 23:6
24:3 38:9 40:1 41:140 42:1 44:3
45:39 46:1 47:1 49:8 50:1 52:1
59:3 61:3 62:2 63:34 64:46 65:1
66:38 67:44 68:8 69:17 71:1 72:11
74:17 76:32 77:4 80:3 81:1 82:2
84:4 85:13 86:9 87:1 89:2 91:15
92:1 93:1 95:1 96:5 97:1 98:2
102:10 103:256 104:10 108:8 109:6 110:3
111:20 112:4 114:23 115:1 116:4 117:61
118:3 119:3 121:20 125:5 128:83 129:168
130:91 131:88 132:60 133:137 134:87 136:191
137:146 138:14 139:5 140:35 141:1 142:43
143:37 144:53 146:124 147:61 148:153 149:13
150:35 151:2 152:73 153:1 154:24 155:46
156:63 157:25 158:44 159:18 160:26 161:16
162:15 163:60 164:40 165:16 166:1 167:16
168:130 169:9 170:51 171:1 172:2 173:2
175:31 176:8 177:8 179:13 180:20 181:11
182:6 184:12 185:12 186:3 187:18 188:3
189:6 190:137 191:36 192:873 193:78 194:55
195:52 196:168 197:4 198:439 199:237 200:255
201:39 202:559 203:418 204:344 205:173 206:181
207:168 208:56 209:110 210:111 211:13 212:132
213:2 216:80 217:2 218:6 219:7 220:24
222:2
End of report
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