IPv4 R&E Routing Table Report 20:00 GMT Thu 22 Dec, 2022 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: 7554 Prefixes after maximum aggregation (per Origin AS): 5190 Deaggregation factor: 1.46 Unique aggregates announced (without unneeded subnets): 5713 Number of IPv4 prefixes with a valid ROA: 2637 Number of IPv4 prefixes with an invalid ROA: 6 Number of IPv4 prefixes with no ROA: 4911 Total ASes present in the Internet Routing Table: 1447 Prefixes per ASN: 5.22 Origin-only ASes present in the Internet Routing Table: 1202 Origin ASes announcing only one prefix: 617 Transit ASes present in the Internet Routing Table: 245 Transit-only ASes present in the Internet Routing Table: 82 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.1 Max AS path length visible: 12 Max AS path prepend of ASN ( 20537) 9 Prefixes from unregistered ASNs in the Routing Table: 0 Number of instances of unregistered ASNs: 0 Number of 32-bit ASNs allocated by the RIRs: 40958 Number of 32-bit ASNs visible in the Routing Table: 325 Prefixes from 32-bit ASNs in the Routing Table: 865 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 2 Number of addresses announced to Internet: 89988608 Equivalent to 5 /8s, 93 /16s and 30 /24s Percentage of available address space announced: 2.4 Percentage of allocated address space announced: 2.4 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: 1162 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 1622 Total APNIC prefixes after maximum aggregation: 1094 APNIC Deaggregation factor: 1.48 Prefixes being announced from the APNIC address blocks: 1623 Unique aggregates announced from the APNIC address blocks: 1260 APNIC Region origin ASes present in the Internet Routing Table: 229 APNIC Prefixes per ASN: 7.09 APNIC Region origin ASes announcing only one prefix: 106 APNIC Region transit ASes present in the Internet Routing Table: 15 Average APNIC Region AS path length visible: 2.7 Max APNIC Region AS path length visible: 8 Number of APNIC region 32-bit ASNs visible in the Routing Table: 70 Number of APNIC addresses announced to Internet: 18581760 Equivalent to 1 /8s, 27 /16s and 137 /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, 131072-151865 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: 1470 Total ARIN prefixes after maximum aggregation: 869 ARIN Deaggregation factor: 1.69 Prefixes being announced from the ARIN address blocks: 1478 Unique aggregates announced from the ARIN address blocks: 1093 ARIN Region origin ASes present in the Internet Routing Table: 356 ARIN Prefixes per ASN: 4.15 ARIN Region origin ASes announcing only one prefix: 167 ARIN Region transit ASes present in the Internet Routing Table: 90 Average ARIN Region AS path length visible: 5.5 Max ARIN Region AS path length visible: 11 Number of ARIN region 32-bit ASNs visible in the Routing Table: 67 Number of ARIN addresses announced to Internet: 11583232 Equivalent to 0 /8s, 176 /16s and 191 /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: 3378 Total RIPE prefixes after maximum aggregation: 2825 RIPE Deaggregation factor: 1.20 Prefixes being announced from the RIPE address blocks: 3368 Unique aggregates announced from the RIPE address blocks: 2842 RIPE Region origin ASes present in the Internet Routing Table: 658 RIPE Prefixes per ASN: 5.12 RIPE Region origin ASes announcing only one prefix: 291 RIPE Region transit ASes present in the Internet Routing Table: 95 Average RIPE Region AS path length visible: 3.8 Max RIPE Region AS path length visible: 12 Number of RIPE region 32-bit ASNs visible in the Routing Table: 137 Number of RIPE addresses announced to Internet: 57729792 Equivalent to 3 /8s, 112 /16s and 227 /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: 446 Total LACNIC prefixes after maximum aggregation: 241 LACNIC Deaggregation factor: 1.85 Prefixes being announced from the LACNIC address blocks: 445 Unique aggregates announced from the LACNIC address blocks: 303 LACNIC Region origin ASes present in the Internet Routing Table: 74 LACNIC Prefixes per ASN: 6.01 LACNIC Region origin ASes announcing only one prefix: 30 LACNIC Region transit ASes present in the Internet Routing Table: 19 Average LACNIC Region AS path length visible: 6.2 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 24 Number of LACNIC addresses announced to Internet: 933888 Equivalent to 0 /8s, 14 /16s and 64 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 638 Total AfriNIC prefixes after maximum aggregation: 161 AfriNIC Deaggregation factor: 3.96 Prefixes being announced from the AfriNIC address blocks: 638 Unique aggregates announced from the AfriNIC address blocks: 213 AfriNIC Region origin ASes present in the Internet Routing Table: 48 AfriNIC Prefixes per ASN: 13.29 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 1159424 Equivalent to 0 /8s, 17 /16s and 177 /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 2140 460 SINET-AS Research Organization of Infor 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 169 329 118 AARNET-AS-AP Australian Academic and Re 23767 30 3 10 A-STAR-AS-AP A-STAR, SG 134096 27 3 18 EHEALTHNSW-AS-AP eHealth NSW, AU 24436 23 27 19 UQ-AS-AP University of Queensland, AU 6262 22 128 17 CSIRO Commonwealth Scientific and Indus 10148 19 20 18 UNIMELB-AS-AP The University of Melbour 38022 18 3 13 REANNZ-NZ-AP REANNZ National Research a 2506 16 52 6 SUPERCSI NTT WEST CHUGOKU CORPORATION, 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 5786 74 5 37 UPRENET, PR 6325 64 169 13 ILLINOIS-CENTURY, US 6360 53 62 7 UNIVHAWAII, US 25977 44 10 15 HCCS, US 46115 34 2 2 LUTHER, US 271 31 24 27 BCNET-AS, CA 3450 27 29 4 UTK, US 3477 26 21 10 NOAA-NWAVE, US 19957 21 64 4 TENNESSEE-NET, US 393750 21 16 1 TRUMAN-STATE-UNIVERSITY, 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 680 281 1935 249 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 559 115 550 106 SWITCH Peering requests: peering@switch 1103 100 1520 87 SURFNET-NL SURFnet, The Netherlands, NL 2614 95 27 75 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 73 449 73 BELWUE BelWue-Koordination, DE 1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol 2200 63 599 58 FR-RENATER Reseau National de telecommu 3267 56 63 41 RUNNET, 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 2715 47 37 29 Fundacao Carlos Chagas Filho de Amparo 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA 3596 34 4 3 Universidad Autonoma Metropolitana, MX 1916 28 41 22 Rede Nacional de Ensino e Pesquisa, BR 271640 27 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 3597 20 2 15 Fundacion InnovaT, AR 4270 19 2 14 Red de Interconexion Universitaria, AR 27790 17 1 1 Universidad Nacional de Cordoba, AR 278 16 1 14 Universidad Nacional Autonoma de Mexico 262742 14 2 1 Fundacao Universidade Federal do ABC - 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 239 82 3 KENET-AS, KE 2018 101 55 69 TENET-1, ZA 2561 41 3 23 EUN, EG 327687 41 28 3 RENU, UG 327700 35 16 1 MoRENet, MZ 37182 33 8 1 TERNET, TZ 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 37654 10 1 6 RwEdNet-AS, RW 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 2140 460 SINET-AS Research Organization of Infor 680 281 1935 249 DFN Verein zur Foerderung eines Deutsch 36914 239 82 3 KENET-AS, KE 786 186 1775 183 JANET Jisc Services Limited, GB 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 169 329 118 AARNET-AS-AP Australian Academic and Re 559 115 550 106 SWITCH Peering requests: peering@switch 2018 101 55 69 TENET-1, ZA 1103 100 1520 87 SURFNET-NL SURFnet, The Netherlands, NL 2614 95 27 75 ROEDUNET, RO 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 239 236 KENET-AS, KE 58647 175 173 KAGAWAU-AS Kagawa University, JP 7575 169 51 AARNET-AS-AP Australian Academic and Research N 6325 64 51 ILLINOIS-CENTURY, US 6360 53 46 UNIVHAWAII, US 327687 41 38 RENU, UG 5786 74 37 UPRENET, PR 327700 35 34 MoRENet, MZ 200521 52 33 SEAP-AGE, ES 680 281 32 DFN Verein zur Foerderung eines Deutschen Forsc Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-CIDRnet Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Transit: 23855 SINGAREN-GIX-AS-AP Singapore Advanced Re 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 /9:0 /10:0 /11:0 /12:3 /13:2 /14:9 /15:52 /16:1027 /17:197 /18:174 /19:237 /20:300 /21:398 /22:620 /23:640 /24:3895 /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 226 239 KENET-AS, KE 37182 32 33 TERNET, TZ 46115 32 34 LUTHER, US 25977 30 44 HCCS, US 200521 30 52 SEAP-AGE, ES 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 327700 30 35 MoRENet, MZ 3267 21 56 RUNNET, RU 31638 21 21 ASN-LEPIDA, IT 3233 20 30 ICI-ROTLD Romanian National R&D Network, RO Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 5:15 12:1 23:1 24:2 31:7 35:3 37:1 38:3 41:144 44:4 45:13 46:5 49:4 62:9 63:2 64:20 66:11 67:37 69:5 74:35 76:4 77:7 78:3 79:10 80:17 81:28 82:7 83:6 84:8 85:42 86:2 87:1 88:1 89:10 91:39 92:1 93:4 94:4 95:4 97:2 98:2 102:11 103:79 104:4 108:1 109:5 123:8 125:1 128:46 129:22 130:7 131:33 132:21 133:147 134:10 136:71 137:25 138:8 139:2 140:7 142:3 143:10 144:1 145:2 146:9 147:8 148:39 149:4 150:21 151:2 152:46 153:12 154:11 155:5 156:10 157:5 158:1 159:5 160:25 161:4 162:5 163:20 164:1 165:1 166:1 167:9 168:57 170:34 171:1 172:1 173:1 177:5 179:5 180:2 181:1 185:42 187:2 188:13 189:3 190:3 191:25 192:745 193:338 194:146 195:64 196:63 197:143 198:92 199:45 200:76 201:10 202:219 203:163 204:80 205:26 206:38 207:29 208:28 209:15 210:3 212:54 213:5 216:10 217:11 219:5 End of report