IPv4 R&E Routing Table Report 20:00 GMT Sun 29 Sep, 2024 IPv4 BGP Table (R&E) as seen at SingAREN. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/SingAREN/ Analysis Summary ---------------- BGP routing table entries examined: 19447 Prefixes after maximum aggregation (per Origin AS): 10692 Deaggregation factor: 1.82 Unique aggregates announced (without unneeded subnets): 11760 Number of IPv4 prefixes with a valid ROA: 7100 Number of IPv4 prefixes with an invalid ROA: 5 Number of IPv4 prefixes with no ROA: 12342 Total ASes present in the Internet Routing Table: 2797 Prefixes per ASN: 6.95 Origin-only ASes present in the Internet Routing Table: 2422 Origin ASes announcing only one prefix: 1077 Transit ASes present in the Internet Routing Table: 375 Transit-only ASes present in the Internet Routing Table: 65 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 18 Max AS path prepend of ASN (395156) 12 Prefixes from unregistered ASNs in the Routing Table: 1 Number of instances of unregistered ASNs: 1 Number of 32-bit ASNs allocated by the RIRs: 45458 Number of 32-bit ASNs visible in the Routing Table: 685 Prefixes from 32-bit ASNs in the Routing Table: 1923 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: 6 Number of addresses announced to Internet: 202573568 Equivalent to 12 /8s, 19 /16s and 7 /24s Percentage of available address space announced: 5.5 Percentage of allocated address space announced: 5.5 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 2285 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4665 Total APNIC prefixes after maximum aggregation: 2288 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4660 Unique aggregates announced from the APNIC address blocks: 2629 APNIC Region origin ASes present in the Internet Routing Table: 586 APNIC Prefixes per ASN: 7.95 APNIC Region origin ASes announcing only one prefix: 246 APNIC Region transit ASes present in the Internet Routing Table: 62 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 11 Number of APNIC region 32-bit ASNs visible in the Routing Table: 230 Number of APNIC addresses announced to Internet: 45766144 Equivalent to 2 /8s, 186 /16s and 86 /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, 131072-153913 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: 8622 Total ARIN prefixes after maximum aggregation: 4831 ARIN Deaggregation factor: 1.78 Prefixes being announced from the ARIN address blocks: 8636 Unique aggregates announced from the ARIN address blocks: 5287 ARIN Region origin ASes present in the Internet Routing Table: 1275 ARIN Prefixes per ASN: 6.77 ARIN Region origin ASes announcing only one prefix: 450 ARIN Region transit ASes present in the Internet Routing Table: 156 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 17 Number of ARIN region 32-bit ASNs visible in the Routing Table: 210 Number of ARIN addresses announced to Internet: 90452992 Equivalent to 5 /8s, 100 /16s and 52 /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, 393216-402332 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: 3567 Total RIPE prefixes after maximum aggregation: 2864 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3555 Unique aggregates announced from the RIPE address blocks: 2907 RIPE Region origin ASes present in the Internet Routing Table: 667 RIPE Prefixes per ASN: 5.33 RIPE Region origin ASes announcing only one prefix: 297 RIPE Region transit ASes present in the Internet Routing Table: 105 Average RIPE Region AS path length visible: 3.8 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 154 Number of RIPE addresses announced to Internet: 59666944 Equivalent to 3 /8s, 142 /16s and 114 /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 196608-216475 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: 1435 Total LACNIC prefixes after maximum aggregation: 536 LACNIC Deaggregation factor: 2.68 Prefixes being announced from the LACNIC address blocks: 1434 Unique aggregates announced from the LACNIC address blocks: 716 LACNIC Region origin ASes present in the Internet Routing Table: 153 LACNIC Prefixes per ASN: 9.37 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: 6.1 Max LACNIC Region AS path length visible: 15 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 62 Number of LACNIC addresses announced to Internet: 4201984 Equivalent to 0 /8s, 64 /16s and 30 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 1157 Total AfriNIC prefixes after maximum aggregation: 172 AfriNIC Deaggregation factor: 6.73 Prefixes being announced from the AfriNIC address blocks: 1156 Unique aggregates announced from the AfriNIC address blocks: 216 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 23.12 AfriNIC Region origin ASes announcing only one prefix: 32 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 4.3 Max AfriNIC Region AS path length visible: 18 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 29 Number of AfriNIC addresses announced to Internet: 2474752 Equivalent to 0 /8s, 37 /16s and 195 /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 570 2168 451 SINET-AS Research Organization of Informa 7497 451 212 25 CSTNET-AS-AP Computer Network Information 1237 191 74 145 KREONET-AS-KR KISTI, KR 58647 180 18 2 KAGAWAU-AS Kagawa University, JP 7575 171 329 114 AARNET-AS-AP Australian Academic and Rese 55824 133 19 20 NKN-CORE-NW NKN Core Network, IN 4538 129 4192 72 ERX-CERNET-BKB China Education and Resear 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha 4621 69 37 10 UNINET-AS-AP UNINET-, TH 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 2152 511 507 99 CENIC-2152, US 2920 229 44 49 LACOE, US 668 205 648 174 DNIC-AS-00668, US 376 200 162 149 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 18558 141 18 5 NETBLK-RCOEK, US 81 133 501 32 NCREN, US 23024 95 7 21 OCDE, US 21976 87 50 17 NJEDGE-NET, US 237 85 541 50 MERIT-AS-14, US Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 282 1899 249 DFN Verein zur Foerderung eines Deutschen 786 185 1767 182 JANET Jisc Services Limited, GB 8895 135 24 5 ISU Internet Services Unit ISU, SA 559 114 533 104 SWITCH Peering requests: peering@switch.c 1103 97 2015 84 SURFNET-NL SURFnet, The Netherlands, NL 2614 92 26 72 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog 553 78 462 78 BELWUE BelWue-Koordination, DE 3267 77 26 67 NIKS, RU Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 211 180 42 Rede Nacional de Ensino e Pesquisa, BR 28391 154 10 68 Universidad Juarez Autonoma de Tabasco, M 11340 109 25 52 Red Universitaria Nacional, CL 271640 66 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 61468 50 5 17 CEDIA, EC 2715 49 99 35 Fundacao Carlos Chagas Filho de Amparo a 19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR 4270 45 16 1 Red de Interconexion Universitaria, AR 28614 38 2 2 Fundacao Universidade Regional de Blumena 3596 37 8 4 Universidad Autonoma Metropolitana, MX Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 516 82 3 KENET-AS, KE 2018 382 319 71 TENET-1, ZA 327700 50 16 1 MoRENet, MZ 8094 47 48 18 PUKNET, ZA 37215 32 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37074 15 8 2 UG-AS, GH 37661 12 8 4 NRaE1-AS, NG 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 570 2168 451 SINET-AS Research Organization of Informa 36914 516 82 3 KENET-AS, KE 2152 511 507 99 CENIC-2152, US 7497 451 212 25 CSTNET-AS-AP Computer Network Information 2018 382 319 71 TENET-1, ZA 680 282 1899 249 DFN Verein zur Foerderung eines Deutschen 2920 229 44 49 LACOE, US 1916 211 180 42 Rede Nacional de Ensino e Pesquisa, BR 668 205 648 174 DNIC-AS-00668, US 376 200 162 149 RISQ-AS, CA Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 36914 516 513 KENET-AS, KE 7497 451 426 CSTNET-AS-AP Computer Network Information Cente 2152 511 412 CENIC-2152, US 2018 382 311 TENET-1, ZA 5786 197 196 UPRENET, PR 2920 229 180 LACOE, US 58647 180 178 KAGAWAU-AS Kagawa University, JP 1916 211 169 Rede Nacional de Ensino e Pesquisa, BR 18558 141 136 NETBLK-RCOEK, US 8895 135 130 ISU Internet Services Unit ISU, SA Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 164.160.192.0/21 Origin: 37661 NRaE1-AS, NG 164.160.192.0/21 Transit: 37288 WACREN, SN 202.14.117.0/24 Origin: 17827 STOU-AS-TH Sukhothai Thammathirat Open U 202.14.117.0/24 Transit: 4621 UNINET-AS-AP UNINET-, TH 202.46.0.0/20 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi 202.46.0.0/20 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese 202.46.240.0/20 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi 202.46.240.0/20 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese 202.46.245.0/24 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi 202.46.245.0/24 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese Complete listing at https://bgp.nsrc.org/REN/SingAREN/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 /10:1 /11:2 /12:10 /13:18 /14:33 /15:119 /16:1990 /17:421 /18:456 /19:586 /20:875 /21:892 /22:1493 /23:1620 /24:10930 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 495 516 KENET-AS, KE 8895 130 135 ISU Internet Services Unit ISU, SA 2152 61 511 CENIC-2152, US 327700 44 50 MoRENet, MZ 23024 37 95 OCDE, US 32440 37 64 LONI, US 3267 35 77 NIKS, RU 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 200521 32 55 SEAP-AGE, ES Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 5:15 6:4 8:2 12:1 14:92 23:5 24:3 31:1 35:3 37:8 38:10 40:1 41:247 42:10 44:6 45:50 46:4 47:1 49:11 50:5 52:1 58:1 59:19 60:6 61:3 62:8 63:37 64:45 65:4 66:55 67:43 68:10 69:18 70:2 71:1 72:7 74:54 76:43 77:10 78:3 79:10 80:12 81:25 82:6 83:6 84:8 85:45 86:5 87:1 89:11 91:43 92:2 93:13 94:2 95:2 96:5 97:1 98:2 101:1 102:13 103:325 104:79 107:2 108:8 109:4 111:16 113:2 114:24 116:9 117:61 118:34 119:25 121:27 122:8 123:8 124:42 125:5 128:52 129:37 130:96 131:64 132:65 133:154 134:108 136:197 137:95 138:57 139:6 140:36 141:3 142:52 143:26 144:29 145:2 146:135 147:63 148:195 149:13 150:40 151:9 152:139 153:15 154:38 155:63 156:133 157:26 158:31 159:121 160:13 161:17 162:24 163:61 164:14 165:49 166:1 167:26 168:119 169:7 170:95 171:1 172:2 173:7 175:16 177:5 179:9 180:16 182:9 184:3 185:50 186:3 187:21 188:13 189:3 190:18 191:13 192:1396 193:272 194:139 195:75 196:149 197:314 198:545 199:276 200:331 201:38 202:647 203:438 204:406 205:172 206:214 207:309 208:68 209:158 210:216 211:3 212:161 213:6 214:8 216:61 217:9 218:21 219:5 220:17 222:2 223:16 End of report