Global R&E Routing Table Report 17:05 GMT Tue 22 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/ Analysis Summary ---------------- BGP routing table entries examined: 14692 Prefixes after maximum aggregation (per Origin AS): 8535 Deaggregation factor: 1.72 Unique aggregates announced (without unneeded subnets): 9494 Total ASes present in the Internet Routing Table: 2163 Prefixes per ASN: 6.79 Origin-only ASes present in the Internet Routing Table: 1864 Origin ASes announcing only one prefix: 898 Transit ASes present in the Internet Routing Table: 299 Transit-only ASes present in the Internet Routing Table: 32 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: 36390 Number of 32-bit ASNs visible in the Routing Table: 455 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: 176641952 Equivalent to 10 /8s, 135 /16s and 87 /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: 1794 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3908 Total APNIC prefixes after maximum aggregation: 2074 APNIC Deaggregation factor: 1.88 Prefixes being announced from the APNIC address blocks: 3910 Unique aggregates announced from the APNIC address blocks: 2299 APNIC Region origin ASes present in the Internet Routing Table: 452 APNIC Prefixes per ASN: 8.65 APNIC Region origin ASes announcing only one prefix: 195 APNIC Region transit ASes present in the Internet Routing Table: 47 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 12 Number of APNIC region 32-bit ASNs visible in the Routing Table: 163 Number of APNIC addresses announced to Internet: 45124160 Equivalent to 2 /8s, 176 /16s and 138 /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: 5626 Total ARIN prefixes after maximum aggregation: 3344 ARIN Deaggregation factor: 1.68 Prefixes being announced from the ARIN address blocks: 5637 Unique aggregates announced from the ARIN address blocks: 3813 ARIN Region origin ASes present in the Internet Routing Table: 871 ARIN Prefixes per ASN: 6.47 ARIN Region origin ASes announcing only one prefix: 321 ARIN Region transit ASes present in the Internet Routing Table: 116 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: 105 Number of ARIN addresses announced to Internet: 70525312 Equivalent to 4 /8s, 52 /16s and 33 /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: 3145 Total RIPE prefixes after maximum aggregation: 2518 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3140 Unique aggregates announced from the RIPE address blocks: 2595 RIPE Region origin ASes present in the Internet Routing Table: 634 RIPE Prefixes per ASN: 4.95 RIPE Region origin ASes announcing only one prefix: 307 RIPE Region transit ASes present in the Internet Routing Table: 99 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: 56104576 Equivalent to 3 /8s, 88 /16s and 22 /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: 901 Total LACNIC prefixes after maximum aggregation: 439 LACNIC Deaggregation factor: 2.05 Prefixes being announced from the LACNIC address blocks: 899 Unique aggregates announced from the LACNIC address blocks: 558 LACNIC Region origin ASes present in the Internet Routing Table: 127 LACNIC Prefixes per ASN: 7.08 LACNIC Region origin ASes announcing only one prefix: 55 LACNIC Region transit ASes present in the Internet Routing Table: 22 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: 47 Number of LACNIC addresses announced to Internet: 2336352 Equivalent to 0 /8s, 35 /16s and 166 /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: 1105 Total AfriNIC prefixes after maximum aggregation: 154 AfriNIC Deaggregation factor: 7.18 Prefixes being announced from the AfriNIC address blocks: 1105 Unique aggregates announced from the AfriNIC address blocks: 228 AfriNIC Region origin ASes present in the Internet Routing Table: 44 AfriNIC Prefixes per ASN: 25.11 AfriNIC Region origin ASes announcing only one prefix: 20 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: 23 Number of AfriNIC addresses announced to Internet: 2547456 Equivalent to 0 /8s, 38 /16s and 223 /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 421 209 20 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 169 4192 72 ERX-CERNET-BKB China Education and Rese 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 2697 55 3 31 ERX-ERNET-AS Education and Research Net 1659 54 1450 34 ERX-TANET-ASN1 Taiwan Academic Network 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 173 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 121 116 48 Associacao Rede Nacional de Ensino e Pe 11340 94 24 54 Red Universitaria Nacional, CL 1251 65 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 411 82 3 KENET-AS, KE 2018 311 319 72 TENET-1, ZA 327687 137 28 3 RENU, UG 8094 55 48 4 PUKNET, ZA 327700 40 16 1 MoRENet, MZ 37215 29 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37182 11 8 1 TERNET, TZ 37501 11 49 6 UOFS, ZA 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 421 209 20 CSTNET-AS-AP Computer Network Informati 36914 411 82 3 KENET-AS, KE 2018 311 319 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 411 408 KENET-AS, KE 7497 421 401 CSTNET-AS-AP Computer Network Information Cente 2018 311 239 TENET-1, ZA 5786 201 200 UPRENET, PR 58647 176 174 KAGAWAU-AS Kagawa University, JP 8895 173 169 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 /16:1677 /17:273 /18:293 /19:469 /20:659 /21:731 /22:1147 /23:1187 /24:7899 /25:78 /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 383 411 KENET-AS, KE 8895 168 173 ISU Internet Services Unit (ISU), SA 23024 53 56 OCDE, US 327700 34 40 MoRENet, MZ 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 25977 29 32 HCCS, US 200521 28 44 SEAP-AGE, ES 1916 24 121 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) ---------------------------------------------- 1:2 5:15 8:2 12:1 14:84 24:2 31:1 37:6 38:5 41:238 42:9 44:4 45:33 46:6 49:10 58:4 59:10 60:4 61:3 62:6 63:4 64:13 66:6 67:42 68:1 69:14 71:1 72:11 74:9 76:9 77:5 78:3 79:10 80:13 81:29 82:3 83:7 84:3 85:29 86:9 87:1 88:1 89:10 91:47 93:11 94:2 95:3 96:5 101:3 102:8 103:210 104:5 106:1 108:4 109:8 110:3 111:16 112:4 114:21 116:4 117:55 118:17 119:18 121:27 122:8 124:40 128:66 129:32 130:82 131:81 132:51 133:137 134:84 136:191 137:136 138:14 139:4 140:33 141:2 142:40 143:34 144:27 146:121 147:29 148:7 149:12 150:19 151:5 152:65 153:6 154:24 155:33 156:64 157:25 158:41 159:114 160:26 161:16 162:11 163:60 164:37 165:15 167:15 168:91 169:9 170:41 172:2 173:1 175:20 176:8 177:6 178:1 179:6 180:21 182:5 184:9 185:35 186:2 187:1 188:13 190:67 191:26 192:1202 193:178 194:111 195:59 196:167 197:199 198:338 199:187 200:148 201:7 202:375 203:287 204:311 205:147 206:145 207:132 208:45 209:91 210:174 211:2 212:168 213:4 216:46 217:16 218:5 219:13 220:15 222:4 223:2 End of report