Global R&E Routing Table Report 17:15 GMT Sat 17 Apr, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/ Analysis Summary ---------------- BGP routing table entries examined: 15117 Prefixes after maximum aggregation (per Origin AS): 8620 Deaggregation factor: 1.75 Unique aggregates announced (without unneeded subnets): 9651 Total ASes present in the Internet Routing Table: 2223 Prefixes per ASN: 6.80 Origin-only ASes present in the Internet Routing Table: 1926 Origin ASes announcing only one prefix: 921 Transit ASes present in the Internet Routing Table: 297 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: 35738 Number of 32-bit ASNs visible in the Routing Table: 465 Prefixes from 32-bit ASNs in the Routing Table: 1385 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: 181164512 Equivalent to 10 /8s, 204 /16s and 89 /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: 1860 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4006 Total APNIC prefixes after maximum aggregation: 2135 APNIC Deaggregation factor: 1.88 Prefixes being announced from the APNIC address blocks: 4008 Unique aggregates announced from the APNIC address blocks: 2398 APNIC Region origin ASes present in the Internet Routing Table: 466 APNIC Prefixes per ASN: 8.60 APNIC Region origin ASes announcing only one prefix: 207 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: 45476160 Equivalent to 2 /8s, 181 /16s and 233 /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: 5812 Total ARIN prefixes after maximum aggregation: 3421 ARIN Deaggregation factor: 1.70 Prefixes being announced from the ARIN address blocks: 5830 Unique aggregates announced from the ARIN address blocks: 3922 ARIN Region origin ASes present in the Internet Routing Table: 934 ARIN Prefixes per ASN: 6.24 ARIN Region origin ASes announcing only one prefix: 351 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: 73862720 Equivalent to 4 /8s, 103 /16s and 14 /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: 3033 Total RIPE prefixes after maximum aggregation: 2438 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3025 Unique aggregates announced from the RIPE address blocks: 2531 RIPE Region origin ASes present in the Internet Routing Table: 600 RIPE Prefixes per ASN: 5.04 RIPE Region origin ASes announcing only one prefix: 288 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: 113 Number of RIPE addresses announced to Internet: 55746976 Equivalent to 3 /8s, 82 /16s and 161 /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: 1056 Total LACNIC prefixes after maximum aggregation: 438 LACNIC Deaggregation factor: 2.41 Prefixes being announced from the LACNIC address blocks: 1055 Unique aggregates announced from the LACNIC address blocks: 528 LACNIC Region origin ASes present in the Internet Routing Table: 138 LACNIC Prefixes per ASN: 7.64 LACNIC Region origin ASes announcing only one prefix: 54 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: 3527616 Equivalent to 0 /8s, 53 /16s and 211 /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: 1199 Total AfriNIC prefixes after maximum aggregation: 178 AfriNIC Deaggregation factor: 6.74 Prefixes being announced from the AfriNIC address blocks: 1199 Unique aggregates announced from the AfriNIC address blocks: 272 AfriNIC Region origin ASes present in the Internet Routing Table: 46 AfriNIC Prefixes per ASN: 26.07 AfriNIC Region origin ASes announcing only one prefix: 21 AfriNIC Region transit ASes present in the Internet Routing Table: 10 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: 22 Number of AfriNIC addresses announced to Internet: 2551040 Equivalent to 0 /8s, 38 /16s and 237 /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 422 210 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 126 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 67 647 62 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 197 215 40 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 408 82 3 KENET-AS, KE 2018 322 319 72 TENET-1, ZA 327687 136 28 3 RENU, UG 327700 85 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 37182 20 2 16 TERNET, TZ 37074 11 8 2 UG-AS, GH 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 422 210 22 CSTNET-AS-AP Computer Network Informati 36914 408 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 197 215 40 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 408 405 KENET-AS, KE 7497 422 400 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 197 157 Associacao Rede Nacional de Ensino e Pesquisa, 327687 136 133 RENU, UG 18558 134 130 NETBLK-RCOEK, US 2920 112 106 LACOE, 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 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 /16:1728 /17:296 /18:311 /19:488 /20:700 /21:765 /22:1160 /23:1223 /24:8081 /25:74 /26:58 /27:56 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 380 408 KENET-AS, KE 8895 167 172 ISU Internet Services Unit (ISU), SA 327700 79 85 MoRENet, MZ 23024 53 56 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 32440 29 44 LONI, US 25977 28 34 HCCS, US 30220 25 25 SWTELCOOP, US 200521 25 41 SEAP-AGE, ES 1916 24 197 Associacao Rede Nacional de Ensino e Pesquisa, 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 14:83 23:1 24:2 31:3 37:6 38:6 41:289 42:8 44:4 45:32 46:6 49:10 58:4 59:11 60:3 61:3 62:6 63:4 64:25 65:2 66:25 67:40 68:1 69:13 71:1 72:11 74:9 76:32 77:4 78:3 79:10 80:12 81:30 82:1 83:8 84:3 85:23 86:6 87:1 88:1 89:10 91:46 93:12 94:2 95:3 96:5 101:3 102:8 103:219 104:9 106:1 108:8 109:8 110:3 111:16 112:4 114:23 116:4 117:61 118:17 119:18 121:27 122:9 123:8 124:40 125:1 128:67 129:37 130:91 131:89 132:55 133:137 134:85 136:191 137:103 138:13 139:4 140:32 141:2 142:28 143:32 144:27 146:121 147:32 148:6 149:13 150:34 151:5 152:65 153:5 154:24 155:53 156:64 157:25 158:40 159:112 160:26 161:15 162:10 163:60 164:35 165:14 166:1 167:11 168:86 169:7 170:38 172:1 173:1 175:20 176:8 177:5 178:1 179:10 180:21 182:5 184:2 185:30 186:3 187:16 188:11 189:6 190:41 191:1 192:1129 193:174 194:96 195:88 196:170 197:199 198:381 199:203 200:231 201:22 202:381 203:281 204:320 205:150 206:155 207:122 208:49 209:96 210:164 211:14 212:166 213:2 216:27 217:15 218:5 219:13 220:21 222:4 End of report