Global R&E Routing Table Report 17:05 GMT Thu 17 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/ Analysis Summary ---------------- BGP routing table entries examined: 14719 Prefixes after maximum aggregation (per Origin AS): 8534 Deaggregation factor: 1.72 Unique aggregates announced (without unneeded subnets): 9486 Total ASes present in the Internet Routing Table: 2155 Prefixes per ASN: 6.83 Origin-only ASes present in the Internet Routing Table: 1856 Origin ASes announcing only one prefix: 886 Transit ASes present in the Internet Routing Table: 299 Transit-only ASes present in the Internet Routing Table: 33 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 14 Max AS path prepend of ASN ( 5474) 11 Prefixes from unregistered ASNs in the Routing Table: 7 Number of instances of unregistered ASNs: 7 Number of 32-bit ASNs allocated by the RIRs: 36350 Number of 32-bit ASNs visible in the Routing Table: 452 Prefixes from 32-bit ASNs in the Routing Table: 1331 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: 1 Number of addresses announced to Internet: 177216288 Equivalent to 10 /8s, 144 /16s and 27 /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: 1787 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3937 Total APNIC prefixes after maximum aggregation: 2088 APNIC Deaggregation factor: 1.89 Prefixes being announced from the APNIC address blocks: 3939 Unique aggregates announced from the APNIC address blocks: 2327 APNIC Region origin ASes present in the Internet Routing Table: 456 APNIC Prefixes per ASN: 8.64 APNIC Region origin ASes announcing only one prefix: 198 APNIC Region transit ASes present in the Internet Routing Table: 47 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 12 Number of APNIC region 32-bit ASNs visible in the Routing Table: 166 Number of APNIC addresses announced to Internet: 45157440 Equivalent to 2 /8s, 177 /16s and 12 /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: 5620 Total ARIN prefixes after maximum aggregation: 3350 ARIN Deaggregation factor: 1.68 Prefixes being announced from the ARIN address blocks: 5629 Unique aggregates announced from the ARIN address blocks: 3796 ARIN Region origin ASes present in the Internet Routing Table: 869 ARIN Prefixes per ASN: 6.48 ARIN Region origin ASes announcing only one prefix: 319 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: 106 Number of ARIN addresses announced to Internet: 70994304 Equivalent to 4 /8s, 59 /16s and 73 /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: 3141 Total RIPE prefixes after maximum aggregation: 2515 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3139 Unique aggregates announced from the RIPE address blocks: 2595 RIPE Region origin ASes present in the Internet Routing Table: 633 RIPE Prefixes per ASN: 4.96 RIPE Region origin ASes announcing only one prefix: 306 RIPE Region transit ASes present in the Internet Routing Table: 100 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: 117 Number of RIPE addresses announced to Internet: 56104320 Equivalent to 3 /8s, 88 /16s and 21 /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: 891 Total LACNIC prefixes after maximum aggregation: 421 LACNIC Deaggregation factor: 2.12 Prefixes being announced from the LACNIC address blocks: 888 Unique aggregates announced from the LACNIC address blocks: 539 LACNIC Region origin ASes present in the Internet Routing Table: 118 LACNIC Prefixes per ASN: 7.53 LACNIC Region origin ASes announcing only one prefix: 45 LACNIC Region transit ASes present in the Internet Routing Table: 21 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: 41 Number of LACNIC addresses announced to Internet: 2392032 Equivalent to 0 /8s, 36 /16s and 127 /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: 1123 Total AfriNIC prefixes after maximum aggregation: 154 AfriNIC Deaggregation factor: 7.29 Prefixes being announced from the AfriNIC address blocks: 1123 Unique aggregates announced from the AfriNIC address blocks: 228 AfriNIC Region origin ASes present in the Internet Routing Table: 43 AfriNIC Prefixes per ASN: 26.12 AfriNIC Region origin ASes announcing only one prefix: 18 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: 2564096 Equivalent to 0 /8s, 39 /16s and 32 /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 618 2155 455 SINET-AS Research Organization of Infor 7497 424 211 23 CSTNET-AS-AP Computer Network Informati 1237 192 75 137 KREONET-AS-KR KISTI, KR 7575 182 331 126 AARNET-AS-AP Australian Academic and Re 58647 176 18 2 KAGAWAU-AS Kagawa University, JP 4538 168 4192 72 ERX-CERNET-BKB China Education and Rese 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 1659 55 1450 34 ERX-TANET-ASN1 Taiwan Academic Network 2697 53 3 32 ERX-ERNET-AS Education and Research Net 23570 53 4 20 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 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 376 234 180 157 RISQ-AS, CA 5786 201 16 1 UPRENET, PR 2152 160 507 91 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 270 117 297 87 AS270, US 2920 112 34 6 LACOE, US 21976 86 51 18 NJEDGE-NET, US 1736 80 16 1 MU-AS, US 22742 66 51 32 CT-EDU-NET, US 3477 65 71 39 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 559 116 550 107 SWITCH Peering requests: (peering@switc 1103 96 1520 84 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 32 59 ROEDUNET, RO 1930 56 82 51 RCCN Fundacao para a Ciencia e a Tecnol 1653 52 151 49 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 119 116 46 Associacao Rede Nacional de Ensino e Pe 11340 94 24 54 Red Universitaria Nacional, CL 1251 66 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 51 53 33 Fundacao Carlos Chagas Filho de Amparo 4270 44 16 1 Red de Interconexion Universitaria, AR 61468 41 3 15 CEDIA, EC 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA 20191 31 16 1 Pontificia Universidad Catolica de Chil 28571 27 26 15 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 422 82 3 KENET-AS, KE 2018 321 319 72 TENET-1, ZA 327687 137 28 3 RENU, UG 8094 55 48 4 PUKNET, ZA 327700 38 16 1 MoRENet, MZ 37215 29 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37501 11 49 6 UOFS, ZA 37182 10 8 1 TERNET, TZ 36982 8 33 8 UCT, 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 618 2155 455 SINET-AS Research Organization of Infor 7497 424 211 23 CSTNET-AS-AP Computer Network Informati 36914 422 82 3 KENET-AS, KE 2018 321 319 72 TENET-1, ZA 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 376 234 180 157 RISQ-AS, CA 5786 201 16 1 UPRENET, PR 1237 192 75 137 KREONET-AS-KR KISTI, KR 786 187 1787 185 JANET Jisc Services Limited, GB 7575 182 331 126 AARNET-AS-AP Australian Academic and Re 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 422 419 KENET-AS, KE 7497 424 401 CSTNET-AS-AP Computer Network Information Cente 2018 321 249 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 327687 137 134 RENU, UG 18558 137 133 NETBLK-RCOEK, US 55824 128 106 NKN-CORE-NW NKN Core Network, IN 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 36843 UNALLOCATED 108.59.20.0/24 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 328439 UNALLOCATED 164.160.240.0/20 327992 GHANAIAN-ACADEMIC-AND-RESEAR Complete listing at https://bgp.nsrc.org/REN/ASREN/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 164.160.240.0/20 Origin: 328439 UNASSIGNED Transit: 327992 GHANAIAN-ACADEMIC-AND-RESEARCH-NETWORK, 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 /11:1 /12:10 /13:19 /14:35 /15:103 /16:1684 /17:273 /18:295 /19:472 /20:660 /21:736 /22:1145 /23:1194 /24:7904 /25:77 /26:58 /27:50 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 394 422 KENET-AS, KE 8895 167 172 ISU Internet Services Unit (ISU), SA 23024 53 56 OCDE, US 327700 32 38 MoRENet, MZ 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 25977 29 32 HCCS, US 200521 28 44 SEAP-AGE, ES 1916 24 119 Associacao Rede Nacional de Ensino e Pesquisa, 2614 24 62 ROEDUNET, RO 37215 23 29 MAREN, MW 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 24:2 31:3 37:6 38:5 41:239 42:9 44:4 45:35 46:6 49:10 58:4 59:10 60:4 61:3 62:6 63:4 64:13 66:6 67:42 68:1 69:13 71:1 72:11 74:9 76:9 77:5 78:3 79:10 80:13 81:29 82:2 83:7 84:3 85:29 86:9 87:1 88:1 89:10 91:47 93:11 94:2 95:3 96:5 101:3 102:8 103:213 104:9 106:1 108:4 109:8 110:3 111:16 112:4 114:21 116:4 117:55 118:17 119:18 121:27 122:8 124:40 128:66 129:32 130:82 131:85 132:51 133:137 134:84 136:191 137:116 138:14 139:4 140:33 141:2 142:40 143:34 144:27 146:121 147:30 148:7 149:12 150:19 151:5 152:65 153:6 154:24 155:33 156:64 157:25 158:41 159:114 160:26 161:16 162:8 163:60 164:35 165:15 167:14 168:99 169:9 170:39 172:2 173:1 175:20 176:8 177:4 178:1 179:10 180:21 182:5 184:8 185:35 186:2 188:13 190:64 191:25 192:1205 193:178 194:108 195:59 196:169 197:206 198:336 199:186 200:149 201:6 202:383 203:298 204:309 205:147 206:145 207:137 208:47 209:92 210:174 211:2 212:167 213:4 216:31 217:16 218:5 219:13 220:15 222:4 223:2 End of report