IPv4 R&E Routing Table Report 19:05 GMT Thu 02 Feb, 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: 15646 Prefixes after maximum aggregation (per Origin AS): 9105 Deaggregation factor: 1.72 Unique aggregates announced (without unneeded subnets): 9994 Number of IPv4 prefixes with a valid ROA: 4110 Number of IPv4 prefixes with an invalid ROA: 61 Number of IPv4 prefixes with no ROA: 11475 Total ASes present in the Internet Routing Table: 2378 Prefixes per ASN: 6.58 Origin-only ASes present in the Internet Routing Table: 2057 Origin ASes announcing only one prefix: 912 Transit ASes present in the Internet Routing Table: 321 Transit-only ASes present in the Internet Routing Table: 46 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 5.1 Max AS path length visible: 20 Max AS path prepend of ASN (136911) 11 Prefixes from unregistered ASNs in the Routing Table: 5 Number of instances of unregistered ASNs: 5 Number of 32-bit ASNs allocated by the RIRs: 41170 Number of 32-bit ASNs visible in the Routing Table: 524 Prefixes from 32-bit ASNs in the Routing Table: 1515 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: 187654656 Equivalent to 11 /8s, 47 /16s and 98 /24s Percentage of available address space announced: 5.1 Percentage of allocated address space announced: 5.1 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: 1950 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 3048 Total APNIC prefixes after maximum aggregation: 1470 APNIC Deaggregation factor: 2.07 Prefixes being announced from the APNIC address blocks: 3049 Unique aggregates announced from the APNIC address blocks: 1547 APNIC Region origin ASes present in the Internet Routing Table: 300 APNIC Prefixes per ASN: 10.16 APNIC Region origin ASes announcing only one prefix: 121 APNIC Region transit ASes present in the Internet Routing Table: 28 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 12 Number of APNIC region 32-bit ASNs visible in the Routing Table: 115 Number of APNIC addresses announced to Internet: 39132928 Equivalent to 2 /8s, 85 /16s and 31 /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: 7112 Total ARIN prefixes after maximum aggregation: 4097 ARIN Deaggregation factor: 1.74 Prefixes being announced from the ARIN address blocks: 7132 Unique aggregates announced from the ARIN address blocks: 4634 ARIN Region origin ASes present in the Internet Routing Table: 1154 ARIN Prefixes per ASN: 6.18 ARIN Region origin ASes announcing only one prefix: 416 ARIN Region transit ASes present in the Internet Routing Table: 151 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 20 Number of ARIN region 32-bit ASNs visible in the Routing Table: 181 Number of ARIN addresses announced to Internet: 85688320 Equivalent to 5 /8s, 27 /16s and 128 /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: 3555 Total RIPE prefixes after maximum aggregation: 2860 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3542 Unique aggregates announced from the RIPE address blocks: 2881 RIPE Region origin ASes present in the Internet Routing Table: 679 RIPE Prefixes per ASN: 5.22 RIPE Region origin ASes announcing only one prefix: 301 RIPE Region transit ASes present in the Internet Routing Table: 100 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: 141 Number of RIPE addresses announced to Internet: 57881344 Equivalent to 3 /8s, 115 /16s and 51 /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: 1357 Total LACNIC prefixes after maximum aggregation: 573 LACNIC Deaggregation factor: 2.37 Prefixes being announced from the LACNIC address blocks: 1353 Unique aggregates announced from the LACNIC address blocks: 776 LACNIC Region origin ASes present in the Internet Routing Table: 150 LACNIC Prefixes per ASN: 9.02 LACNIC Region origin ASes announcing only one prefix: 52 LACNIC Region transit ASes present in the Internet Routing Table: 22 Average LACNIC Region AS path length visible: 6.1 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 60 Number of LACNIC addresses announced to Internet: 4044800 Equivalent to 0 /8s, 61 /16s and 184 /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: 569 Total AfriNIC prefixes after maximum aggregation: 100 AfriNIC Deaggregation factor: 5.69 Prefixes being announced from the AfriNIC address blocks: 569 Unique aggregates announced from the AfriNIC address blocks: 155 AfriNIC Region origin ASes present in the Internet Routing Table: 45 AfriNIC Prefixes per ASN: 12.64 AfriNIC Region origin ASes announcing only one prefix: 22 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 5.5 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: 907008 Equivalent to 0 /8s, 13 /16s and 215 /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 581 2157 461 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 1237 184 74 134 KREONET-AS-KR KISTI, KR 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 4758 161 16 1 NICNET-VSNL-BOARDER-AP National Informa 55824 141 19 30 NKN-CORE-NW NKN Core Network, IN 4538 127 4192 73 ERX-CERNET-BKB China Education and Rese 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 2697 54 3 32 ERX-ERNET-AS Education and Research Net 132524 44 9 11 TIFR-AS Tata Institute of Fundamental R 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 376 200 178 149 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 2152 146 507 90 CSUNET-NW, US 18558 134 18 4 NETBLK-RCOEK, 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 80 16 1 MU-AS, US 3477 70 62 41 NOAA-NWAVE, 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 680 282 1919 250 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 8895 134 24 4 ISU Internet Services Unit ISU, SA 559 114 550 105 SWITCH Peering requests: peering@switch 1103 96 1518 85 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 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 157 208 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 11340 104 24 56 Red Universitaria Nacional, CL 1251 58 37 19 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 45 16 1 Red de Interconexion Universitaria, AR 61468 42 3 14 CEDIA, EC 19611 37 17 2 Associacao Antonio Vieira - Unisinos, B 28571 37 40 18 UNIVERSIDADE DE SAO PAULO, BR 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 36914 252 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 327687 44 28 3 RENU, UG 3208 32 2 1 ARN, DZ 37182 31 8 1 TERNET, TZ 327700 31 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 37654 10 1 6 RwEdNet-AS, RW 37215 5 8 1 MAREN, MW 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 581 2157 461 SINET-AS Research Organization of Infor 7497 434 182 24 CSTNET-AS-AP Computer Network Informati 680 282 1919 250 DFN Verein zur Foerderung eines Deutsch 36914 252 82 3 KENET-AS, KE 376 200 178 149 RISQ-AS, CA 5786 199 16 1 UPRENET, PR 786 186 1775 183 JANET Jisc Services Limited, GB 1237 184 74 134 KREONET-AS-KR KISTI, KR 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 4758 161 16 1 NICNET-VSNL-BOARDER-AP National Informa 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 434 410 CSTNET-AS-AP Computer Network Information Cente 36914 252 249 KENET-AS, KE 5786 199 198 UPRENET, PR 58647 175 173 KAGAWAU-AS Kagawa University, JP 4758 161 160 NICNET-VSNL-BOARDER-AP National Informatics Cen 8895 134 130 ISU Internet Services Unit ISU, SA 18558 134 130 NETBLK-RCOEK, US 1916 157 114 Rede Nacional de Ensino e Pesquisa, BR 55824 141 111 NKN-CORE-NW NKN Core Network, IN 2920 107 100 LACOE, 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 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/BDREN/data-badAS 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 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 /14:31 /15:117 /16:1801 /17:364 /18:397 /19:509 /20:768 /21:754 /22:1180 /23:1340 /24:8353 /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 239 252 KENET-AS, KE 8895 129 134 ISU Internet Services Unit ISU, SA 23024 52 113 OCDE, US 32440 34 49 LONI, US 46115 32 35 LUTHER, US 200521 31 54 SEAP-AGE, ES 25977 30 44 HCCS, US 28614 30 36 Fundacao Universidade Regional de Blumenau, BR 37182 30 31 TERNET, TZ 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN Complete listing at https://bgp.nsrc.org/REN/BDREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 5:15 8:2 12:1 14:89 23:8 24:3 31:7 35:4 38:9 40:1 41:140 42:6 44:4 45:27 46:5 47:1 49:8 50:1 52:1 58:1 59:1 60:4 62:10 63:4 64:50 65:1 66:32 67:42 68:2 69:21 70:2 71:1 72:7 74:50 76:37 77:9 78:3 79:10 80:17 81:28 82:6 83:6 84:7 85:42 86:5 87:1 89:10 91:47 92:2 93:4 94:4 95:2 96:5 97:2 98:2 101:2 102:14 103:150 104:77 108:7 109:7 114:8 117:59 119:19 121:11 124:39 125:1 128:67 129:42 130:85 131:57 132:63 133:149 134:93 136:199 137:77 138:1 139:6 140:40 141:1 142:39 143:19 144:23 145:2 146:123 147:56 148:198 149:12 150:120 151:7 152:61 153:14 154:6 155:35 156:64 157:29 158:34 159:116 160:26 161:16 162:19 163:75 164:156 165:13 166:1 167:9 168:71 169:10 170:59 171:1 172:3 173:7 176:8 177:9 179:9 180:15 181:1 182:1 184:2 185:47 186:3 187:19 188:13 189:3 190:15 191:36 192:1195 193:345 194:147 195:87 196:20 197:155 198:410 199:238 200:213 201:35 202:308 203:105 204:332 205:125 206:161 207:146 208:66 209:112 210:170 211:4 212:168 213:5 216:87 217:10 218:2 219:5 220:7 222:3 223:4 End of report