Global R&E Routing Table Report 17:15 GMT Tue 20 Apr, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/ Analysis Summary ---------------- BGP routing table entries examined: 15080 Prefixes after maximum aggregation (per Origin AS): 8599 Deaggregation factor: 1.75 Unique aggregates announced (without unneeded subnets): 9610 Total ASes present in the Internet Routing Table: 2220 Prefixes per ASN: 6.79 Origin-only ASes present in the Internet Routing Table: 1922 Origin ASes announcing only one prefix: 914 Transit ASes present in the Internet Routing Table: 298 Transit-only ASes present in the Internet Routing Table: 36 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 17 Max AS path prepend of ASN ( 5474) 11 Prefixes from unregistered ASNs in the Routing Table: 11 Number of instances of unregistered ASNs: 11 Number of 32-bit ASNs allocated by the RIRs: 35764 Number of 32-bit ASNs visible in the Routing Table: 465 Prefixes from 32-bit ASNs in the Routing Table: 1390 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: 181277728 Equivalent to 10 /8s, 206 /16s and 20 /24s Percentage of available address space announced: 4.9 Percentage of allocated address space announced: 4.9 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: 1833 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3994 Total APNIC prefixes after maximum aggregation: 2127 APNIC Deaggregation factor: 1.88 Prefixes being announced from the APNIC address blocks: 3996 Unique aggregates announced from the APNIC address blocks: 2388 APNIC Region origin ASes present in the Internet Routing Table: 462 APNIC Prefixes per ASN: 8.65 APNIC Region origin ASes announcing only one prefix: 203 APNIC Region transit ASes present in the Internet Routing Table: 48 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 167 Number of APNIC addresses announced to Internet: 45471808 Equivalent to 2 /8s, 181 /16s and 216 /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, 131072-143673 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: 5785 Total ARIN prefixes after maximum aggregation: 3420 ARIN Deaggregation factor: 1.69 Prefixes being announced from the ARIN address blocks: 5802 Unique aggregates announced from the ARIN address blocks: 3894 ARIN Region origin ASes present in the Internet Routing Table: 934 ARIN Prefixes per ASN: 6.21 ARIN Region origin ASes announcing only one prefix: 348 ARIN Region transit ASes present in the Internet Routing Table: 113 Average ARIN Region AS path length visible: 5.0 Max ARIN Region AS path length visible: 17 Number of ARIN region 32-bit ASNs visible in the Routing Table: 109 Number of ARIN addresses announced to Internet: 73903680 Equivalent to 4 /8s, 103 /16s and 174 /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: 3027 Total RIPE prefixes after maximum aggregation: 2432 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3020 Unique aggregates announced from the RIPE address blocks: 2527 RIPE Region origin ASes present in the Internet Routing Table: 598 RIPE Prefixes per ASN: 5.05 RIPE Region origin ASes announcing only one prefix: 287 RIPE Region transit ASes present in the Internet Routing Table: 98 Average RIPE Region AS path length visible: 3.7 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 112 Number of RIPE addresses announced to Internet: 55675808 Equivalent to 3 /8s, 81 /16s and 139 /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: 1068 Total LACNIC prefixes after maximum aggregation: 440 LACNIC Deaggregation factor: 2.43 Prefixes being announced from the LACNIC address blocks: 1067 Unique aggregates announced from the LACNIC address blocks: 540 LACNIC Region origin ASes present in the Internet Routing Table: 140 LACNIC Prefixes per ASN: 7.62 LACNIC Region origin ASes announcing only one prefix: 55 LACNIC Region transit ASes present in the Internet Routing Table: 21 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 54 Number of LACNIC addresses announced to Internet: 3637760 Equivalent to 0 /8s, 55 /16s and 130 /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: 1195 Total AfriNIC prefixes after maximum aggregation: 170 AfriNIC Deaggregation factor: 7.03 Prefixes being announced from the AfriNIC address blocks: 1195 Unique aggregates announced from the AfriNIC address blocks: 261 AfriNIC Region origin ASes present in the Internet Routing Table: 47 AfriNIC Prefixes per ASN: 25.43 AfriNIC Region origin ASes announcing only one prefix: 21 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 7 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 23 Number of AfriNIC addresses announced to Internet: 2588672 Equivalent to 0 /8s, 39 /16s and 128 /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 619 2156 456 SINET-AS Research Organization of Infor 7497 426 210 22 CSTNET-AS-AP Computer Network Informati 1237 186 75 132 KREONET-AS-KR KISTI, KR 7575 186 347 132 AARNET-AS-AP Australian Academic and Re 58647 176 18 2 KAGAWAU-AS Kagawa University, JP 4538 158 4192 72 ERX-CERNET-BKB China Education and Rese 55824 127 18 21 NKN-CORE-NW NKN Core Network, IN 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 1659 55 1450 34 ERX-TANET-ASN1 Taiwan Academic Network 2697 55 3 31 ERX-ERNET-AS Education and Research Net 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 376 234 180 156 RISQ-AS, CA 5786 201 16 1 UPRENET, PR 2152 160 507 92 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, US 2920 112 34 6 LACOE, US 21976 86 51 18 NJEDGE-NET, US 22742 84 61 45 CT-EDU-NET, US 1736 80 16 1 MU-AS, US 15296 65 5 54 CYBERA, CA 3477 63 70 37 NOAA-NWAVE, 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 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 786 187 1787 185 JANET Jisc Services Limited, GB 8895 172 24 4 ISU Internet Services Unit (ISU), SA 559 115 550 106 SWITCH Peering requests: (peering@switc 1103 95 1520 84 SURFNET-NL SURFnet, The Netherlands, NL 137 82 677 77 ASGARR Consortium GARR, IT 2200 66 646 61 FR-RENATER Reseau National de telecommu 2614 62 32 59 ROEDUNET, RO 1930 56 82 51 RCCN Fundacao para a Ciencia e a Tecnol 1653 49 151 48 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 198 211 39 Associacao Rede Nacional de Ensino e Pe 11340 94 24 54 Red Universitaria Nacional, CL 1251 67 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 61468 41 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 20191 31 16 1 Pontificia Universidad Catolica de Chil 28571 31 10 19 UNIVERSIDADE DE SAO PAULO, BR 3597 23 2 17 Fundacion InnovaT, 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 412 82 3 KENET-AS, KE 2018 322 319 72 TENET-1, ZA 327687 136 28 3 RENU, UG 327700 87 16 1 MoRENet, MZ 8094 55 48 4 PUKNET, ZA 2561 32 2 13 EUN, EG 37215 29 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37074 11 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 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 619 2156 456 SINET-AS Research Organization of Infor 7497 426 210 22 CSTNET-AS-AP Computer Network Informati 36914 412 82 3 KENET-AS, KE 2018 322 319 72 TENET-1, ZA 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 376 234 180 156 RISQ-AS, CA 5786 201 16 1 UPRENET, PR 1916 198 211 39 Associacao Rede Nacional de Ensino e Pe 786 187 1787 185 JANET Jisc Services Limited, GB 1237 186 75 132 KREONET-AS-KR KISTI, KR Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 412 409 KENET-AS, KE 7497 426 404 CSTNET-AS-AP Computer Network Information Cente 2018 322 250 TENET-1, ZA 5786 201 200 UPRENET, PR 58647 176 174 KAGAWAU-AS Kagawa University, JP 8895 172 168 ISU Internet Services Unit (ISU), SA 1916 198 159 Associacao Rede Nacional de Ensino e Pesquisa, 327687 136 133 RENU, UG 18558 134 130 NETBLK-RCOEK, US 55824 127 106 NKN-CORE-NW NKN Core Network, IN 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 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 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 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 199.44.67.0/24 11096 FLORIDANET, US Complete listing at https://bgp.nsrc.org/REN/ASREN/data-badAS 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 /12:10 /13:19 /14:33 /15:111 /16:1731 /17:297 /18:310 /19:486 /20:695 /21:762 /22:1154 /23:1223 /24:8056 /25:74 /26:58 /27:57 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 384 412 KENET-AS, KE 8895 167 172 ISU Internet Services Unit (ISU), SA 327700 81 87 MoRENet, MZ 23024 53 56 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 200521 26 42 SEAP-AGE, ES 30220 25 25 SWTELCOOP, US 32440 25 38 LONI, US 1916 24 198 Associacao Rede Nacional de Ensino e Pesquisa, 2614 24 62 ROEDUNET, 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 23:1 24:2 31:3 37:6 38:6 41:281 42:8 44:4 45:32 46:6 49:10 58:4 59:11 60:4 61:3 62:6 63:4 64:25 65:2 66:25 67:12 68:1 69:13 71:1 72:11 74:9 76:28 77:4 78:3 79:10 80:11 81:29 82:1 83:8 84:3 85:22 86:6 87:1 88:1 89:10 91:46 93:12 94:2 95:3 96:5 101:3 102:8 103:213 104:9 106:1 108:8 109:8 110:3 111:16 112:4 114:23 116:4 117:61 118:17 119:18 121:27 122:9 123:8 124:40 125:1 128:67 129:37 130:91 131:89 132:55 133:137 134:85 136:191 137:103 138:13 139:4 140:32 141:2 142:28 143:32 144:27 146:121 147:30 148:6 149:13 150:34 151:5 152:65 153:5 154:24 155:53 156:64 157:25 158:40 159:112 160:26 161:15 162:10 163:60 164:35 165:13 166:1 167:11 168:90 169:9 170:38 172:1 173:1 175:20 176:8 177:5 178:1 179:9 180:21 182:5 184:4 185:31 186:3 187:16 188:11 189:6 190:40 191:1 192:1129 193:174 194:96 195:89 196:169 197:201 198:376 199:204 200:235 201:38 202:374 203:289 204:320 205:150 206:155 207:123 208:49 209:93 210:164 211:14 212:166 213:2 216:27 217:15 218:5 219:13 220:21 222:4 223:1 End of report