IPv4 R&E Routing Table Report 23:05 GMT Sun 23 Feb, 2025 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 970130 Prefixes after maximum aggregation (per Origin AS): 372353 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 476408 Number of IPv4 prefixes with a valid ROA: 528957 Number of IPv4 prefixes with an invalid ROA: 1205 Number of IPv4 prefixes with no ROA: 439968 Total ASes present in the Internet Routing Table: 76488 Prefixes per ASN: 12.68 Origin-only ASes present in the Internet Routing Table: 65634 Origin ASes announcing only one prefix: 26873 Transit ASes present in the Internet Routing Table: 10854 Transit-only ASes present in the Internet Routing Table: 527 Paths with bogon ASNs present in the IPv4 Routing Table: 11 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1044 Number of instances of unregistered ASNs: 1049 Number of 32-bit ASNs allocated by the RIRs: 46189 Number of 32-bit ASNs visible in the Routing Table: 37823 Prefixes from 32-bit ASNs in the Routing Table: 198740 Number of bogon 32-bit ASNs visible in the Routing Table: 20 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 497 Number of addresses announced to Internet: 3110656768 Equivalent to 185 /8s, 104 /16s and 219 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 317073 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 254902 Total APNIC prefixes after maximum aggregation: 76149 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 247028 Unique aggregates announced from the APNIC address blocks: 102681 APNIC Region origin ASes present in the Internet Routing Table: 14489 APNIC Prefixes per ASN: 17.05 APNIC Region origin ASes announcing only one prefix: 4435 APNIC Region transit ASes present in the Internet Routing Table: 1952 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 34 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10013 Number of APNIC addresses announced to Internet: 753300736 Equivalent to 44 /8s, 230 /16s and 117 /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, 131072-155961 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: 286425 Total ARIN prefixes after maximum aggregation: 127467 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 288055 Unique aggregates announced from the ARIN address blocks: 135978 ARIN Region origin ASes present in the Internet Routing Table: 19188 ARIN Prefixes per ASN: 15.01 ARIN Region origin ASes announcing only one prefix: 7018 ARIN Region transit ASes present in the Internet Routing Table: 1921 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5149 Number of ARIN addresses announced to Internet: 1348418048 Equivalent to 80 /8s, 95 /16s and 58 /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, 393216-402332 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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 269700 Total RIPE prefixes after maximum aggregation: 132158 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 267114 Unique aggregates announced from the RIPE address blocks: 173528 RIPE Region origin ASes present in the Internet Routing Table: 28820 RIPE Prefixes per ASN: 9.27 RIPE Region origin ASes announcing only one prefix: 12061 RIPE Region transit ASes present in the Internet Routing Table: 3952 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12261 Number of RIPE addresses announced to Internet: 730379520 Equivalent to 43 /8s, 136 /16s and 181 /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 196608-216475 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 53/8, 57/8, 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: 123060 Total LACNIC prefixes after maximum aggregation: 29126 LACNIC Deaggregation factor: 4.23 Prefixes being announced from the LACNIC address blocks: 120023 Unique aggregates announced from the LACNIC address blocks: 48843 LACNIC Region origin ASes present in the Internet Routing Table: 11192 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2666 LACNIC Region transit ASes present in the Internet Routing Table: 2485 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 35 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9133 Number of LACNIC addresses announced to Internet: 173818368 Equivalent to 10 /8s, 92 /16s and 66 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 34999 Total AfriNIC prefixes after maximum aggregation: 6805 AfriNIC Deaggregation factor: 5.14 Prefixes being announced from the AfriNIC address blocks: 47413 Unique aggregates announced from the AfriNIC address blocks: 14964 AfriNIC Region origin ASes present in the Internet Routing Table: 1908 AfriNIC Prefixes per ASN: 24.85 AfriNIC Region origin ASes announcing only one prefix: 693 AfriNIC Region transit ASes present in the Internet Routing Table: 369 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1267 Number of AfriNIC addresses announced to Internet: 104480512 Equivalent to 6 /8s, 58 /16s and 63 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 9808 10335 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6213 844 661 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4323 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4240 530 275 BBIL-AP BHARTI Airtel Ltd., IN 7552 3919 1331 25 VIETEL-AS-AP Viettel Group, VN 7713 3685 1036 72 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3262 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2846 854 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2207 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2164 434 195 TATACOMM-AS TATA Communications formerly Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12785 39189 3780 AMAZON-02, US 11492 4705 312 562 CABLEONE, US 7155 4175 286 83 VIASAT-SP-BACKBONE, US 6327 3623 1320 81 SHAW, CA 174 3521 8764 937 COGENT-174, US 22773 3369 3035 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 396982 2931 3660 450 GOOGLE-CLOUD-PLATFORM, US 16625 2924 1249 2161 AKAMAI-AS, US 30036 2589 359 277 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7770 1714 145 UNI2-AS, ES 20940 3888 3395 127 AKAMAI-ASN1, NL 9009 3731 320 1917 M247, RO 39891 3482 225 56 ALJAWWALSTC-AS, SA 12389 2993 2303 892 ROSTELECOM-AS, RU 34984 2367 361 579 TELLCOM-AS, TR 212238 2018 147 1491 CDNEXT, GB 8452 1624 1852 14 TE-AS TE-AS, EG 13188 1606 100 34 TRIOLAN, UA 62240 1498 99 749 CLOUVIDER Clouvider - Global ASN, GB Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11765 3231 594 UNINET, MX 10620 3545 492 952 Telmex Colombia S.A., CO 13999 2515 541 366 Mega Cable, S.A. de C.V., MX 11830 1981 369 64 Instituto Costarricense de Electricidad y 28573 1351 2437 265 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 777 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1159 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1156 371 22 Telefonica del Peru S.A.A., PE 6503 1130 374 163 Axtel, S.A.B. de C.V., MX 22884 1048 82 371 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1683 599 30 RAYA-AS, EG 24863 1644 389 16 LINKdotNET-AS, EG 29571 1559 98 102 ORANGE-COTE-IVOIRE, CI 36992 1426 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 36935 1013 523 45 Vodafone-, EG 20011 980 183 284 INTERNET-SOLUTIONS, ZA 37069 847 1083 15 MOBINIL, EG 6713 557 1861 35 IAM-AS, MA 36914 530 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12785 39189 3780 AMAZON-02, US 8151 11765 3231 594 UNINET, MX 9808 10335 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7770 1714 145 UNI2-AS, ES 7545 6213 844 661 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4705 312 562 CABLEONE, US 18403 4323 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4240 530 275 BBIL-AP BHARTI Airtel Ltd., IN 7155 4175 286 83 VIASAT-SP-BACKBONE, US 7552 3919 1331 25 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 11765 11171 UNINET, MX 9808 10335 10247 CHINAMOBILE-CN China Mobile Communications Grou 12479 7770 7625 UNI2-AS, ES 7545 6213 5552 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4323 4298 FPT-AS-AP FPT Telecom Company, VN 11492 4705 4143 CABLEONE, US 7155 4175 4092 VIASAT-SP-BACKBONE, US 9498 4240 3965 BBIL-AP BHARTI Airtel Ltd., IN 7552 3919 3894 VIETEL-AS-AP Viettel Group, VN 20940 3888 3761 AKAMAI-ASN1, NL Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 400866 UNALLOCATED 2.59.148.0/23 21859 ZEN-ECN, US 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 3491 CONSOLE-CONNECT-ASN, US 23.140.16.0/24 Origin: 63371 RESERVED, ZZ 23.140.16.0/24 Transit: 3356 LEVEL3, US 23.140.48.0/24 Origin: 63371 RESERVED, ZZ 23.140.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:16 /10:42 /11:92 /12:307 /13:584 /14:1210 /15:2134 /16:13892 /17:8226 /18:13606 /19:24414 /20:43589 /21:51710 /22:111877 /23:100339 /24:598076 /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 12479 6723 7770 UNI2-AS, ES 8151 5970 11765 UNINET, MX 11492 3556 4705 CABLEONE, US 6327 3418 3623 SHAW, CA 7155 3121 4175 VIASAT-SP-BACKBONE, US 22773 2509 3369 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2279 12785 AMAZON-02, US 30036 2249 2589 MEDIACOM-ENTERPRISE-BUSINESS, US 39891 2202 3482 ALJAWWALSTC-AS, SA 10620 2185 3545 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2305 2:1503 3:571 4:10 5:4260 6:165 7:6 8:1548 9:1 11:172 12:1380 13:349 14:2511 15:347 16:274 17:356 18:917 20:450 21:4 22:188 23:7279 24:2724 25:2 27:2701 29:19 31:3151 32:35 34:81 35:201 36:2408 37:4562 38:8629 39:896 40:157 41:4182 42:1960 43:2520 44:351 45:18240 46:4963 47:291 49:1973 50:1888 51:590 52:1570 54:300 55:1069 56:9 57:240 58:2222 59:1211 60:1167 61:2839 62:2918 63:1826 64:5504 65:2193 66:4600 67:3029 68:1122 69:3970 70:1105 71:608 72:2868 74:2777 75:1647 76:612 77:2659 78:1571 79:1724 80:2188 81:2010 82:2621 83:1396 84:1767 85:3339 86:1019 87:2159 88:1274 89:4302 90:762 91:8286 92:2806 93:2479 94:3884 95:4092 96:1362 97:318 98:979 99:742 100:71 101:1382 102:3676 103:32351 104:4803 105:726 106:990 107:2585 108:1199 109:4087 110:2227 111:3318 112:2048 113:1803 114:1943 115:2123 116:2039 117:2746 118:2879 119:1946 120:1873 121:1354 122:2749 123:2161 124:1603 125:2885 126:94 128:1554 129:948 130:1266 131:1843 132:788 133:450 134:1526 135:325 136:1326 137:1109 138:2877 139:1622 140:1562 141:1476 142:1826 143:1601 144:1064 145:466 146:2127 147:2067 148:2581 149:2863 150:1232 151:1695 152:2102 153:504 154:7603 155:1603 156:3159 157:1889 158:1250 159:2424 160:3537 161:1885 162:3681 163:1828 164:1694 165:2183 166:1348 167:1878 168:4038 169:790 170:5058 171:1002 172:4337 173:3234 174:915 175:1280 176:3616 177:4694 178:3762 179:2228 180:2559 181:4001 182:3369 183:2072 184:2296 185:21416 186:5093 187:4307 188:4198 189:4181 190:9623 191:1522 192:11142 193:9359 194:7743 195:5477 196:3276 197:3738 198:6053 199:8337 200:8021 201:6300 202:10331 203:10527 204:4534 205:3659 206:4575 207:3454 208:4187 209:5143 210:4546 211:2528 212:4468 213:3718 214:1058 215:42 216:6572 217:3095 218:1336 219:376 220:2115 221:1052 222:717 223:2318 End of report