Global R&E Routing Table Report 17:05 GMT Mon 12 Jul, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/ASREN/ Analysis Summary ---------------- BGP routing table entries examined: 14387 Prefixes after maximum aggregation (per Origin AS): 8543 Deaggregation factor: 1.68 Unique aggregates announced (without unneeded subnets): 9503 Total ASes present in the Internet Routing Table: 2178 Prefixes per ASN: 6.61 Origin-only ASes present in the Internet Routing Table: 1874 Origin ASes announcing only one prefix: 891 Transit ASes present in the Internet Routing Table: 304 Transit-only ASes present in the Internet Routing Table: 38 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: 10 Number of instances of unregistered ASNs: 10 Number of 32-bit ASNs allocated by the RIRs: 36597 Number of 32-bit ASNs visible in the Routing Table: 464 Prefixes from 32-bit ASNs in the Routing Table: 1346 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: 178100416 Equivalent to 10 /8s, 157 /16s and 152 /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: 1527 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3864 Total APNIC prefixes after maximum aggregation: 2045 APNIC Deaggregation factor: 1.89 Prefixes being announced from the APNIC address blocks: 3866 Unique aggregates announced from the APNIC address blocks: 2264 APNIC Region origin ASes present in the Internet Routing Table: 456 APNIC Prefixes per ASN: 8.48 APNIC Region origin ASes announcing only one prefix: 199 APNIC Region transit ASes present in the Internet Routing Table: 48 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: 169 Number of APNIC addresses announced to Internet: 44959712 Equivalent to 2 /8s, 174 /16s and 7 /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: 5601 Total ARIN prefixes after maximum aggregation: 3363 ARIN Deaggregation factor: 1.67 Prefixes being announced from the ARIN address blocks: 5614 Unique aggregates announced from the ARIN address blocks: 3846 ARIN Region origin ASes present in the Internet Routing Table: 874 ARIN Prefixes per ASN: 6.42 ARIN Region origin ASes announcing only one prefix: 318 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: 71888640 Equivalent to 4 /8s, 72 /16s and 239 /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: 3146 Total RIPE prefixes after maximum aggregation: 2524 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3143 Unique aggregates announced from the RIPE address blocks: 2593 RIPE Region origin ASes present in the Internet Routing Table: 633 RIPE Prefixes per ASN: 4.97 RIPE Region origin ASes announcing only one prefix: 304 RIPE Region transit ASes present in the Internet Routing Table: 98 Average RIPE Region AS path length visible: 3.8 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 119 Number of RIPE addresses announced to Internet: 56077440 Equivalent to 3 /8s, 87 /16s and 172 /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: 964 Total LACNIC prefixes after maximum aggregation: 451 LACNIC Deaggregation factor: 2.14 Prefixes being announced from the LACNIC address blocks: 962 Unique aggregates announced from the LACNIC address blocks: 574 LACNIC Region origin ASes present in the Internet Routing Table: 133 LACNIC Prefixes per ASN: 7.23 LACNIC Region origin ASes announcing only one prefix: 52 LACNIC Region transit ASes present in the Internet Routing Table: 23 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 50 Number of LACNIC addresses announced to Internet: 2635616 Equivalent to 0 /8s, 40 /16s and 55 /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: 802 Total AfriNIC prefixes after maximum aggregation: 151 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 802 Unique aggregates announced from the AfriNIC address blocks: 226 AfriNIC Region origin ASes present in the Internet Routing Table: 41 AfriNIC Prefixes per ASN: 19.56 AfriNIC Region origin ASes announcing only one prefix: 18 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 20 Number of AfriNIC addresses announced to Internet: 2539008 Equivalent to 0 /8s, 38 /16s and 190 /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 424 209 20 CSTNET-AS-AP Computer Network Informati 1237 192 75 137 KREONET-AS-KR KISTI, KR 7575 179 330 125 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 1659 55 1450 34 ERX-TANET-ASN1 Taiwan Academic Network 2697 55 3 31 ERX-ERNET-AS Education and Research Net 132524 48 9 11 TIFR-AS Tata Institute of Fundamental R 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 376 223 179 147 RISQ-AS, CA 5786 185 16 1 UPRENET, PR 2152 155 507 87 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 3477 66 70 38 NOAA-NWAVE, US 22742 66 51 32 CT-EDU-NET, 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 786 188 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@switch 1103 95 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 55 78 50 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 118 116 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 28614 38 2 2 Fundacao Universidade Regional de Blume 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 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 2018 326 319 72 TENET-1, ZA 327687 137 28 3 RENU, UG 36914 98 82 3 KENET-AS, KE 8094 55 48 4 PUKNET, ZA 327700 38 16 1 MoRENet, MZ 37215 30 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 424 209 20 CSTNET-AS-AP Computer Network Informati 2018 326 319 72 TENET-1, ZA 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 376 223 179 147 RISQ-AS, CA 1237 192 75 137 KREONET-AS-KR KISTI, KR 786 188 1787 185 JANET Jisc Services Limited, GB 5786 185 16 1 UPRENET, PR 7575 179 330 125 AARNET-AS-AP Australian Academic and Re 58647 176 18 2 KAGAWAU-AS Kagawa University, JP Complete listing at https://bgp.nsrc.org/REN/ASREN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 424 404 CSTNET-AS-AP Computer Network Information Cente 2018 326 254 TENET-1, ZA 5786 185 184 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 4538 169 97 ERX-CERNET-BKB China Education and Research Net 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 14822 UNALLOCATED 140.163.6.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.64.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.70.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.128.0/17 10466 MAGPI, 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 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 /14:35 /15:103 /16:1693 /17:273 /18:303 /19:458 /20:679 /21:721 /22:1117 /23:1189 /24:7596 /25:79 /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 8895 168 173 ISU Internet Services Unit ISU, SA 36914 85 98 KENET-AS, KE 23024 53 56 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 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 24 118 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) ---------------------------------------------- 1:2 5:15 8:2 12:1 14:84 23:1 24:2 31:1 37:6 38:5 41:140 42:9 44:4 45:34 46:6 49:10 58:4 59:10 60:4 61:3 62:6 63:5 64:13 66:6 67:41 68:1 69:13 72:11 74:12 76:10 77:6 78:3 79:10 80:13 81:29 82:3 83:7 84:3 85:28 86:9 87:1 88:1 89:10 91:45 93:11 94:2 95:4 96:5 101:3 102:7 103:212 104:5 106:1 108:4 109:8 110:3 111:16 112:4 114:18 116:4 117:2 118:17 119:19 121:27 122:8 123:8 124:40 128:66 129:30 130:83 131:86 132:53 133:137 134:83 136:175 137:124 138:14 139:4 140:34 141:2 142:40 143:34 144:27 146:121 147:28 148:7 149:12 150:19 151:5 152:63 153:6 154:24 155:35 156:64 157:25 158:41 159:114 160:26 161:16 162:11 163:59 164:35 165:16 167:16 168:98 169:9 170:42 172:2 173:1 175:20 176:8 177:6 178:1 179:7 180:21 182:5 184:8 185:33 186:2 187:17 188:13 189:6 190:62 191:25 192:1204 193:179 194:110 195:58 196:170 197:4 198:339 199:187 200:159 201:22 202:380 203:290 204:309 205:147 206:143 207:136 208:45 209:92 210:175 211:2 212:168 213:4 216:46 217:16 218:5 219:13 220:9 222:4 223:2 End of report