IPv4 R&E Routing Table Report 19:05 GMT Sun 28 May, 2023 IPv4 BGP Table (R&E) as seen at BDREN. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/BDREN/ Analysis Summary ---------------- BGP routing table entries examined: 18786 Prefixes after maximum aggregation (per Origin AS): 10432 Deaggregation factor: 1.80 Unique aggregates announced (without unneeded subnets): 11611 Number of IPv4 prefixes with a valid ROA: 4951 Number of IPv4 prefixes with an invalid ROA: 17 Number of IPv4 prefixes with no ROA: 13818 Total ASes present in the Internet Routing Table: 2786 Prefixes per ASN: 6.74 Origin-only ASes present in the Internet Routing Table: 2399 Origin ASes announcing only one prefix: 1071 Transit ASes present in the Internet Routing Table: 387 Transit-only ASes present in the Internet Routing Table: 74 Paths with bogon ASNs present in the IPv4 Routing Table: 6 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 20 Max AS path prepend of ASN (395156) 12 Prefixes from unregistered ASNs in the Routing Table: 6 Number of instances of unregistered ASNs: 6 Number of 32-bit ASNs allocated by the RIRs: 41973 Number of 32-bit ASNs visible in the Routing Table: 656 Prefixes from 32-bit ASNs in the Routing Table: 1861 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: 3 Number of addresses announced to Internet: 200740096 Equivalent to 11 /8s, 247 /16s and 13 /24s Percentage of available address space announced: 5.4 Percentage of allocated address space announced: 5.4 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: 2103 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4880 Total APNIC prefixes after maximum aggregation: 2317 APNIC Deaggregation factor: 2.11 Prefixes being announced from the APNIC address blocks: 4884 Unique aggregates announced from the APNIC address blocks: 2641 APNIC Region origin ASes present in the Internet Routing Table: 584 APNIC Prefixes per ASN: 8.36 APNIC Region origin ASes announcing only one prefix: 246 APNIC Region transit ASes present in the Internet Routing Table: 59 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 228 Number of APNIC addresses announced to Internet: 45954560 Equivalent to 2 /8s, 189 /16s and 54 /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: 7827 Total ARIN prefixes after maximum aggregation: 4465 ARIN Deaggregation factor: 1.75 Prefixes being announced from the ARIN address blocks: 7844 Unique aggregates announced from the ARIN address blocks: 4989 ARIN Region origin ASes present in the Internet Routing Table: 1234 ARIN Prefixes per ASN: 6.36 ARIN Region origin ASes announcing only one prefix: 442 ARIN Region transit ASes present in the Internet Routing Table: 164 Average ARIN Region AS path length visible: 5.6 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 194 Number of ARIN addresses announced to Internet: 90042624 Equivalent to 5 /8s, 93 /16s and 241 /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: 3593 Total RIPE prefixes after maximum aggregation: 2864 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3579 Unique aggregates announced from the RIPE address blocks: 2893 RIPE Region origin ASes present in the Internet Routing Table: 684 RIPE Prefixes per ASN: 5.23 RIPE Region origin ASes announcing only one prefix: 302 RIPE Region transit ASes present in the Internet Routing Table: 107 Average RIPE Region AS path length visible: 4.8 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 144 Number of RIPE addresses announced to Internet: 58010368 Equivalent to 3 /8s, 117 /16s and 43 /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: 1461 Total LACNIC prefixes after maximum aggregation: 573 LACNIC Deaggregation factor: 2.55 Prefixes being announced from the LACNIC address blocks: 1458 Unique aggregates announced from the LACNIC address blocks: 793 LACNIC Region origin ASes present in the Internet Routing Table: 156 LACNIC Prefixes per ASN: 9.35 LACNIC Region origin ASes announcing only one prefix: 57 LACNIC Region transit ASes present in the Internet Routing Table: 24 Average LACNIC Region AS path length visible: 6.1 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 63 Number of LACNIC addresses announced to Internet: 4045568 Equivalent to 0 /8s, 61 /16s and 187 /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: 1019 Total AfriNIC prefixes after maximum aggregation: 207 AfriNIC Deaggregation factor: 4.92 Prefixes being announced from the AfriNIC address blocks: 1018 Unique aggregates announced from the AfriNIC address blocks: 292 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 19.96 AfriNIC Region origin ASes announcing only one prefix: 24 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 5.8 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2685952 Equivalent to 0 /8s, 40 /16s and 252 /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 595 2154 465 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 1237 191 74 140 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 173 329 119 AARNET-AS-AP Australian Academic and Re 4758 163 16 1 NICNET-VSNL-BOARDER-AP National Informa 55824 141 19 30 NKN-CORE-NW NKN Core Network, IN 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 4621 70 37 10 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 2152 251 507 94 CSUNET-NW, US 376 202 178 150 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 18558 134 18 4 NETBLK-RCOEK, US 81 129 521 32 NCREN, US 23024 113 7 17 OCDE, US 2920 107 34 7 LACOE, US 32531 90 6 60 FORDHAM-UNIVERSITY, US 21976 85 51 18 NJEDGE-NET, US 1736 79 16 1 MU-AS, US Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 283 1919 249 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 138 24 5 ISU Internet Services Unit ISU, SA 559 112 533 104 SWITCH Peering requests: peering@switch 1103 95 1518 84 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 74 465 74 BELWUE BelWue-Koordination, DE 1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol 2200 64 599 59 FR-RENATER Reseau National de telecommu Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 221 208 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 103 24 47 Red Universitaria Nacional, CL 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 1251 53 36 18 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 4270 45 16 1 Red de Interconexion Universitaria, AR 61468 43 3 15 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 378 319 72 TENET-1, ZA 36914 258 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 327687 57 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 44 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 37074 11 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 595 2154 465 SINET-AS Research Organization of Infor 7497 435 182 24 CSTNET-AS-AP Computer Network Informati 2018 378 319 72 TENET-1, ZA 680 283 1919 249 DFN Verein zur Foerderung eines Deutsch 36914 258 82 3 KENET-AS, KE 2152 251 507 94 CSUNET-NW, US 1916 221 208 43 Rede Nacional de Ensino e Pesquisa, BR 376 202 178 150 RISQ-AS, CA 5786 198 16 1 UPRENET, PR 1237 191 74 140 KREONET-AS-KR KISTI, KR Complete listing at https://bgp.nsrc.org/REN/BDREN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 435 411 CSTNET-AS-AP Computer Network Information Cente 2018 378 306 TENET-1, ZA 36914 258 255 KENET-AS, KE 5786 198 197 UPRENET, PR 1916 221 178 Rede Nacional de Ensino e Pesquisa, BR 58647 178 176 KAGAWAU-AS Kagawa University, JP 4758 163 162 NICNET-VSNL-BOARDER-AP National Informatics Cen 2152 251 157 CSUNET-NW, US 8895 138 133 ISU Internet Services Unit ISU, SA 18558 134 130 NETBLK-RCOEK, US Complete listing at https://bgp.nsrc.org/REN/BDREN/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 65200 PRIVATE 43.224.124.0/22 132124 ICTA-LK Information and Comm 65200 PRIVATE 103.11.32.0/22 132124 ICTA-LK Information and Comm 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US 65200 PRIVATE 220.247.225.0/24 132124 ICTA-LK Information and Comm Complete listing at https://bgp.nsrc.org/REN/BDREN/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 102.36.194.0/23 Origin: 2018 TENET-1, ZA 102.36.194.0/23 Transit: 11537 INTERNET2-RESEARCH-EDU, US 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU 202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res Complete listing at https://bgp.nsrc.org/REN/BDREN/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 /13:18 /14:33 /15:121 /16:1949 /17:409 /18:435 /19:569 /20:859 /21:836 /22:1493 /23:1569 /24:10481 /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 246 258 KENET-AS, KE 8895 133 138 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 327700 38 44 MoRENet, MZ 32440 37 59 LONI, US 18632 34 66 VOLCANO-VISION, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 46115 32 35 LUTHER, US 200521 32 54 SEAP-AGE, ES 25977 30 44 HCCS, US Complete listing at https://bgp.nsrc.org/REN/BDREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1 5:15 8:2 12:1 14:89 23:9 24:3 31:7 35:6 38:9 40:1 41:117 42:10 44:6 45:40 46:5 47:1 49:6 50:4 52:1 58:1 59:19 60:4 61:3 62:11 63:37 64:58 65:5 66:48 67:43 68:8 69:19 70:2 71:1 72:7 74:50 76:41 77:9 78:3 79:10 80:17 81:26 82:7 83:6 84:7 85:42 86:10 87:1 89:10 91:48 92:2 93:4 94:4 95:2 96:5 97:2 98:2 101:6 102:17 103:318 104:81 107:16 108:10 109:9 110:2 111:16 114:23 116:6 117:61 118:32 119:21 121:26 122:8 123:8 124:38 125:4 128:87 129:41 130:88 131:54 132:65 133:157 134:99 136:198 137:88 138:9 139:6 140:35 141:1 142:39 143:28 144:26 145:2 146:130 147:54 148:193 149:12 150:130 151:10 152:144 153:14 154:31 155:55 156:67 157:35 158:38 159:115 160:27 161:21 162:26 163:75 164:158 165:51 166:1 167:16 168:124 169:8 170:79 171:1 172:3 173:7 175:31 176:8 177:5 179:12 180:15 181:1 182:1 184:3 185:53 186:2 187:17 188:13 189:3 190:18 191:36 192:1332 193:346 194:141 195:107 196:165 197:164 198:507 199:248 200:302 201:38 202:642 203:431 204:353 205:134 206:190 207:186 208:73 209:132 210:184 211:6 212:169 213:5 216:87 217:10 218:22 219:6 220:17 222:5 223:4 End of report