IPv4 R&E Routing Table Report 20:00 GMT Mon 09 Jan, 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: 8587 Prefixes after maximum aggregation (per Origin AS): 5636 Deaggregation factor: 1.52 Unique aggregates announced (without unneeded subnets): 6232 Number of IPv4 prefixes with a valid ROA: 3120 Number of IPv4 prefixes with an invalid ROA: 11 Number of IPv4 prefixes with no ROA: 5456 Total ASes present in the Internet Routing Table: 1644 Prefixes per ASN: 5.22 Origin-only ASes present in the Internet Routing Table: 1381 Origin ASes announcing only one prefix: 706 Transit ASes present in the Internet Routing Table: 263 Transit-only ASes present in the Internet Routing Table: 80 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.2 Max AS path length visible: 15 Max AS path prepend of ASN ( 20537) 9 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: 41043 Number of 32-bit ASNs visible in the Routing Table: 425 Prefixes from 32-bit ASNs in the Routing Table: 1097 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: 94105344 Equivalent to 5 /8s, 155 /16s and 239 /24s Percentage of available address space announced: 2.5 Percentage of allocated address space announced: 2.5 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: 1222 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 2026 Total APNIC prefixes after maximum aggregation: 1270 APNIC Deaggregation factor: 1.60 Prefixes being announced from the APNIC address blocks: 2027 Unique aggregates announced from the APNIC address blocks: 1477 APNIC Region origin ASes present in the Internet Routing Table: 314 APNIC Prefixes per ASN: 6.46 APNIC Region origin ASes announcing only one prefix: 151 APNIC Region transit ASes present in the Internet Routing Table: 22 Average APNIC Region AS path length visible: 3.4 Max APNIC Region AS path length visible: 15 Number of APNIC region 32-bit ASNs visible in the Routing Table: 138 Number of APNIC addresses announced to Internet: 18760960 Equivalent to 1 /8s, 30 /16s and 69 /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: 1663 Total ARIN prefixes after maximum aggregation: 1066 ARIN Deaggregation factor: 1.56 Prefixes being announced from the ARIN address blocks: 1671 Unique aggregates announced from the ARIN address blocks: 1289 ARIN Region origin ASes present in the Internet Routing Table: 437 ARIN Prefixes per ASN: 3.82 ARIN Region origin ASes announcing only one prefix: 201 ARIN Region transit ASes present in the Internet Routing Table: 96 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: 85 Number of ARIN addresses announced to Internet: 13279232 Equivalent to 0 /8s, 202 /16s and 160 /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: 3395 Total RIPE prefixes after maximum aggregation: 2843 RIPE Deaggregation factor: 1.19 Prefixes being announced from the RIPE address blocks: 3387 Unique aggregates announced from the RIPE address blocks: 2862 RIPE Region origin ASes present in the Internet Routing Table: 667 RIPE Prefixes per ASN: 5.08 RIPE Region origin ASes announcing only one prefix: 294 RIPE Region transit ASes present in the Internet Routing Table: 98 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: 57761536 Equivalent to 3 /8s, 113 /16s and 95 /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: 538 Total LACNIC prefixes after maximum aggregation: 258 LACNIC Deaggregation factor: 2.09 Prefixes being announced from the LACNIC address blocks: 537 Unique aggregates announced from the LACNIC address blocks: 319 LACNIC Region origin ASes present in the Internet Routing Table: 92 LACNIC Prefixes per ASN: 5.84 LACNIC Region origin ASes announcing only one prefix: 36 LACNIC Region transit ASes present in the Internet Routing Table: 21 Average LACNIC Region AS path length visible: 6.2 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 35 Number of LACNIC addresses announced to Internet: 1617152 Equivalent to 0 /8s, 24 /16s and 173 /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: 964 Total AfriNIC prefixes after maximum aggregation: 198 AfriNIC Deaggregation factor: 4.87 Prefixes being announced from the AfriNIC address blocks: 964 Unique aggregates announced from the AfriNIC address blocks: 284 AfriNIC Region origin ASes present in the Internet Routing Table: 53 AfriNIC Prefixes per ASN: 18.19 AfriNIC Region origin ASes announcing only one prefix: 24 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: 28 Number of AfriNIC addresses announced to Internet: 2686208 Equivalent to 0 /8s, 40 /16s and 253 /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 575 2140 460 SINET-AS Research Organization of Infor 58647 175 18 2 KAGAWAU-AS Kagawa University, JP 7575 170 329 118 AARNET-AS-AP Australian Academic and Re 55824 114 18 12 NKN-CORE-NW NKN Core Network, IN 2697 57 4 33 ERX-ERNET-AS Education and Research Net 132524 44 9 10 TIFR-AS Tata Institute of Fundamental R 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 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 6325 64 169 13 ILLINOIS-CENTURY, US 6360 53 62 7 UNIVHAWAII, US 25977 44 10 15 HCCS, US 18558 41 4 25 NETBLK-RCOEK, US 46115 34 2 2 LUTHER, US 271 32 23 28 BCNET-AS, CA 376 31 4 30 RISQ-AS, CA 5786 31 2 24 UPRENET, PR 3477 26 21 10 NOAA-NWAVE, US 1201 21 16 1 ASN-ODU-AS-AS, 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 680 283 1935 251 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 2715 57 101 37 Fundacao Carlos Chagas Filho de Amparo 4270 44 16 1 Red de Interconexion Universitaria, AR 263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA 3596 33 2 2 Universidad Autonoma Metropolitana, MX 1916 28 72 20 Rede Nacional de Ensino e Pesquisa, BR 271640 27 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 3597 23 2 17 Fundacion InnovaT, AR 27790 18 2 2 Universidad Nacional de Cordoba, AR 28609 17 1 2 Instituto Nupef, BR 11340 15 1 14 Red Universitaria Nacional, CL 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 2018 334 318 63 TENET-1, ZA 36914 239 82 3 KENET-AS, KE 2561 67 4 34 EUN, EG 8094 48 48 15 PUKNET, ZA 327687 40 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 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 575 2140 460 SINET-AS Research Organization of Infor 2018 334 318 63 TENET-1, ZA 680 283 1935 251 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 170 329 118 AARNET-AS-AP Australian Academic and Re 559 114 550 105 SWITCH Peering requests: peering@switch 55824 114 18 12 NKN-CORE-NW NKN Core Network, IN 1103 96 1518 85 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 2018 334 271 TENET-1, ZA 36914 239 236 KENET-AS, KE 58647 175 173 KAGAWAU-AS Kagawa University, JP 55824 114 102 NKN-CORE-NW NKN Core Network, IN 7575 170 52 AARNET-AS-AP Australian Academic and Research N 6325 64 51 ILLINOIS-CENTURY, US 6360 53 46 UNIVHAWAII, US 4270 44 43 Red de Interconexion Universitaria, AR 327687 40 37 RENU, UG 132524 44 34 TIFR-AS Tata Institute of Fundamental Research, 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 395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US Complete listing at https://bgp.nsrc.org/REN/SingAREN/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/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 /16:1078 /17:232 /18:188 /19:245 /20:323 /21:436 /22:698 /23:749 /24:4572 /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 46115 32 34 LUTHER, US 200521 31 54 SEAP-AGE, ES 25977 30 44 HCCS, US 37182 30 31 TERNET, TZ 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 327700 28 31 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) ---------------------------------------------- 1:1 5:15 8:1 12:1 14:84 18:1 23:1 24:2 31:7 35:3 38:4 40:1 41:140 44:4 45:20 46:5 49:8 62:9 63:2 64:25 66:10 67:32 68:1 69:6 74:38 76:5 77:9 78:3 79:10 80:17 81:28 82:8 83:6 84:8 85:42 86:2 87:1 89:10 91:41 92:1 93:4 94:4 95:4 97:2 98:2 102:12 103:177 104:9 108:1 109:7 123:8 125:1 128:49 129:23 130:8 131:33 132:13 133:149 134:12 136:33 137:26 138:9 139:3 140:9 141:1 142:4 143:17 144:23 145:2 146:27 147:14 148:41 149:5 150:21 151:2 152:55 153:12 154:25 155:24 156:10 157:11 158:30 159:5 160:25 161:4 162:6 163:21 164:4 166:1 167:9 168:81 169:2 170:51 171:1 172:2 173:2 177:7 179:5 180:16 185:44 186:1 187:2 188:13 190:3 191:26 192:806 193:344 194:144 195:87 196:146 197:143 198:87 199:52 200:98 201:18 202:263 203:172 204:98 205:29 206:41 207:36 208:29 209:18 210:3 212:58 213:5 216:11 217:11 219:5 220:3 End of report