IPv4 R&E Routing Table Report 20:00 GMT Sat 11 Feb, 2023 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: 5714 Prefixes after maximum aggregation (per Origin AS): 4134 Deaggregation factor: 1.38 Unique aggregates announced (without unneeded subnets): 4363 Number of IPv4 prefixes with a valid ROA: 2331 Number of IPv4 prefixes with an invalid ROA: 1 Number of IPv4 prefixes with no ROA: 3382 Total ASes present in the Internet Routing Table: 975 Prefixes per ASN: 5.86 Origin-only ASes present in the Internet Routing Table: 846 Origin ASes announcing only one prefix: 435 Transit ASes present in the Internet Routing Table: 129 Transit-only ASes present in the Internet Routing Table: 17 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 14 Max AS path prepend of ASN ( 43066) 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: 41191 Number of 32-bit ASNs visible in the Routing Table: 238 Prefixes from 32-bit ASNs in the Routing Table: 572 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: 79463680 Equivalent to 4 /8s, 188 /16s and 133 /24s Percentage of available address space announced: 2.1 Percentage of allocated address space announced: 2.1 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: 883 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 1624 Total APNIC prefixes after maximum aggregation: 1089 APNIC Deaggregation factor: 1.49 Prefixes being announced from the APNIC address blocks: 1625 Unique aggregates announced from the APNIC address blocks: 1260 APNIC Region origin ASes present in the Internet Routing Table: 226 APNIC Prefixes per ASN: 7.19 APNIC Region origin ASes announcing only one prefix: 106 APNIC Region transit ASes present in the Internet Routing Table: 12 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: 69 Number of APNIC addresses announced to Internet: 18579200 Equivalent to 1 /8s, 27 /16s and 127 /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: 212 Total ARIN prefixes after maximum aggregation: 143 ARIN Deaggregation factor: 1.48 Prefixes being announced from the ARIN address blocks: 219 Unique aggregates announced from the ARIN address blocks: 166 ARIN Region origin ASes present in the Internet Routing Table: 22 ARIN Prefixes per ASN: 9.95 ARIN Region origin ASes announcing only one prefix: 7 ARIN Region transit ASes present in the Internet Routing Table: 5 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 7 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2 Number of ARIN addresses announced to Internet: 2229248 Equivalent to 0 /8s, 34 /16s and 4 /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: 3365 Total RIPE prefixes after maximum aggregation: 2828 RIPE Deaggregation factor: 1.19 Prefixes being announced from the RIPE address blocks: 3356 Unique aggregates announced from the RIPE address blocks: 2838 RIPE Region origin ASes present in the Internet Routing Table: 661 RIPE Prefixes per ASN: 5.08 RIPE Region origin ASes announcing only one prefix: 295 RIPE Region transit ASes present in the Internet Routing Table: 96 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: 139 Number of RIPE addresses announced to Internet: 57758720 Equivalent to 3 /8s, 113 /16s and 84 /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: 2 Total LACNIC prefixes after maximum aggregation: 2 LACNIC Deaggregation factor: 1.00 Prefixes being announced from the LACNIC address blocks: 2 Unique aggregates announced from the LACNIC address blocks: 2 LACNIC Region origin ASes present in the Internet Routing Table: 2 LACNIC Prefixes per ASN: 1.00 LACNIC Region origin ASes announcing only one prefix: 2 LACNIC Region transit ASes present in the Internet Routing Table: 0 Average LACNIC Region AS path length visible: 5.5 Max LACNIC Region AS path length visible: 6 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0 Number of LACNIC addresses announced to Internet: 512 Equivalent to 0 /8s, 0 /16s and 2 /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: 511 Total AfriNIC prefixes after maximum aggregation: 72 AfriNIC Deaggregation factor: 7.10 Prefixes being announced from the AfriNIC address blocks: 511 Unique aggregates announced from the AfriNIC address blocks: 96 AfriNIC Region origin ASes present in the Internet Routing Table: 47 AfriNIC Prefixes per ASN: 10.87 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 10 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28 Number of AfriNIC addresses announced to Internet: 895744 Equivalent to 0 /8s, 13 /16s and 171 /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 577 2140 460 SINET-AS Research Organization of Infor 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 171 329 119 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 668 101 300 89 DNIC-AS-00668, US 6360 53 62 7 UNIVHAWAII, US 518 13 2 7 DNIC-AS-00518, US 13 5 16 5 DNIC-AS-00013, US 252 5 17 5 DNIC-AS-00252, US 687 5 16 5 DNIC-AS-00687, US 395400 4 16 2 UNIVERSITY-GUAM, GU 5978 3 0 3 DNIC-ASBLK-05800-06055, US 26100 3 1 3 NOAA-PACIFIC-REGION-CENTER, US 36599 3 0 2 SOFTETHER-AMERICA, 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 1919 249 DFN Verein zur Foerderung eines Deutsch 786 186 1775 183 JANET Jisc Services Limited, GB 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 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 10906 1 0 1 Nucleo de Inf. e Coord. do Ponto BR - N 14650 1 0 1 Nucleo de Inf. e Coord. do Ponto BR - N 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 251 82 3 KENET-AS, KE 327687 44 28 3 RENU, UG 327700 34 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 37182 31 8 1 TERNET, TZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 37654 10 1 6 RwEdNet-AS, RW 2561 7 0 5 EUN, EG 31960 5 1 1 EMUNET, MZ 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 577 2140 460 SINET-AS Research Organization of Infor 680 281 1919 249 DFN Verein zur Foerderung eines Deutsch 36914 251 82 3 KENET-AS, KE 786 186 1775 183 JANET Jisc Services Limited, GB 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 171 329 119 AARNET-AS-AP Australian Academic and Re 559 114 550 105 SWITCH Peering requests: peering@switch 668 101 300 89 DNIC-AS-00668, US 1103 96 1518 85 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 251 248 KENET-AS, KE 58647 175 173 KAGAWAU-AS Kagawa University, JP 7575 171 52 AARNET-AS-AP Australian Academic and Research N 6360 53 46 UNIVHAWAII, US 327687 44 41 RENU, UG 327700 34 33 MoRENet, MZ 680 281 32 DFN Verein zur Foerderung eines Deutschen Forsc 3208 32 31 ARN, DZ 37182 31 30 TERNET, TZ 200521 53 29 SEAP-AGE, ES Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-CIDRnet 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/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 /15:51 /16:906 /17:126 /18:104 /19:175 /20:242 /21:335 /22:516 /23:517 /24:2728 /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 238 251 KENET-AS, KE 37182 30 31 TERNET, TZ 200521 30 53 SEAP-AGE, ES 327700 29 34 MoRENet, MZ 3267 21 56 RUNNET, RU 31638 21 21 ASN-LEPIDA, IT 3233 20 30 ICI-ROTLD Romanian National R&D Network, RO 2614 17 95 ROEDUNET, RO 28949 15 15 TUSNET-AS 8, Kliment Ohridski St., BG 60187 14 35 LGFL-AS, GB Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 5:15 6:4 24:2 31:7 41:141 44:4 45:12 46:5 49:4 62:9 77:9 78:3 79:10 80:17 81:28 82:6 83:6 84:11 85:42 86:2 87:1 89:10 91:37 92:2 93:4 94:4 95:2 102:14 103:79 109:4 123:8 125:1 128:35 129:7 130:5 131:15 132:6 133:149 134:7 136:1 137:26 138:8 140:5 143:7 145:2 146:1 147:4 148:6 150:5 151:2 152:4 153:12 154:6 155:4 156:8 157:2 159:1 160:26 161:4 163:19 171:1 180:2 185:43 188:13 192:617 193:305 194:144 195:65 196:18 197:154 198:3 199:16 200:2 202:221 203:166 204:1 205:4 206:3 207:1 210:3 212:42 213:5 214:3 217:11 219:5 End of report