IPv4 R&E Routing Table Report 23:05 GMT Tue 25 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: 971925 Prefixes after maximum aggregation (per Origin AS): 372523 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 475829 Number of IPv4 prefixes with a valid ROA: 531120 Number of IPv4 prefixes with an invalid ROA: 1240 Number of IPv4 prefixes with no ROA: 439565 Total ASes present in the Internet Routing Table: 76500 Prefixes per ASN: 12.70 Origin-only ASes present in the Internet Routing Table: 65648 Origin ASes announcing only one prefix: 26880 Transit ASes present in the Internet Routing Table: 10852 Transit-only ASes present in the Internet Routing Table: 527 Paths with bogon ASNs present in the IPv4 Routing Table: 14 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 72 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1043 Number of instances of unregistered ASNs: 1048 Number of 32-bit ASNs allocated by the RIRs: 46198 Number of 32-bit ASNs visible in the Routing Table: 37826 Prefixes from 32-bit ASNs in the Routing Table: 198922 Number of bogon 32-bit ASNs visible in the Routing Table: 26 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 500 Number of addresses announced to Internet: 3112208128 Equivalent to 185 /8s, 128 /16s and 135 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 318915 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 254860 Total APNIC prefixes after maximum aggregation: 76161 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 246976 Unique aggregates announced from the APNIC address blocks: 102682 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: 4425 APNIC Region transit ASes present in the Internet Routing Table: 1950 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: 10009 Number of APNIC addresses announced to Internet: 753213184 Equivalent to 44 /8s, 229 /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, 131072-155961 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: 286121 Total ARIN prefixes after maximum aggregation: 127536 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 287724 Unique aggregates announced from the ARIN address blocks: 135963 ARIN Region origin ASes present in the Internet Routing Table: 19195 ARIN Prefixes per ASN: 14.99 ARIN Region origin ASes announcing only one prefix: 7032 ARIN Region transit ASes present in the Internet Routing Table: 1919 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: 5156 Number of ARIN addresses announced to Internet: 1348241920 Equivalent to 80 /8s, 92 /16s and 138 /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: 271635 Total RIPE prefixes after maximum aggregation: 132140 RIPE Deaggregation factor: 2.06 Prefixes being announced from the RIPE address blocks: 269064 Unique aggregates announced from the RIPE address blocks: 172893 RIPE Region origin ASes present in the Internet Routing Table: 28836 RIPE Prefixes per ASN: 9.33 RIPE Region origin ASes announcing only one prefix: 12068 RIPE Region transit ASes present in the Internet Routing Table: 3959 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: 12267 Number of RIPE addresses announced to Internet: 732249600 Equivalent to 43 /8s, 165 /16s and 62 /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: 123128 Total LACNIC prefixes after maximum aggregation: 29235 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 120090 Unique aggregates announced from the LACNIC address blocks: 48850 LACNIC Region origin ASes present in the Internet Routing Table: 11175 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2653 LACNIC Region transit ASes present in the Internet Routing Table: 2481 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: 9121 Number of LACNIC addresses announced to Internet: 173747456 Equivalent to 10 /8s, 91 /16s and 45 /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: 35138 Total AfriNIC prefixes after maximum aggregation: 6807 AfriNIC Deaggregation factor: 5.16 Prefixes being announced from the AfriNIC address blocks: 47571 Unique aggregates announced from the AfriNIC address blocks: 15023 AfriNIC Region origin ASes present in the Internet Routing Table: 1915 AfriNIC Prefixes per ASN: 24.84 AfriNIC Region origin ASes announcing only one prefix: 702 AfriNIC Region transit ASes present in the Internet Routing Table: 371 Average AfriNIC Region AS path length visible: 5.5 Max AfriNIC Region AS path length visible: 72 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1273 Number of AfriNIC addresses announced to Internet: 104495616 Equivalent to 6 /8s, 58 /16s and 122 /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 10327 8753 88 CHINAMOBILE-CN China Mobile Communication 7545 6219 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 3920 1331 25 VIETEL-AS-AP Viettel Group, VN 7713 3685 1036 72 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3264 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2843 851 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2207 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2169 434 196 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 12752 39183 3784 AMAZON-02, US 11492 4705 312 562 CABLEONE, US 7155 4175 286 83 VIASAT-SP-BACKBONE, US 6327 3623 1320 81 SHAW, CA 22773 3369 3035 177 ASN-CXA-ALL-CCI-22773-RDC, US 174 3344 8763 934 COGENT-174, US 749 3260 54879 2507 DNIC-AS-00749, US 396982 2935 3660 453 GOOGLE-CLOUD-PLATFORM, US 16625 2929 1250 2161 AKAMAI-AS, US 30036 2585 357 302 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 7771 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3901 3395 127 AKAMAI-ASN1, NL 9009 3738 321 1921 M247, RO 12389 2985 2303 893 ROSTELECOM-AS, RU 34984 2367 361 579 TELLCOM-AS, TR 212238 1998 145 1476 CDNEXT, GB 8452 1617 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 11767 3235 592 UNINET, MX 10620 3545 492 952 Telmex Colombia S.A., CO 13999 2516 541 366 Mega Cable, S.A. de C.V., MX 11830 1992 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, 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 26615 1013 2503 53 TIM SA, BR 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 1619 389 16 LINKdotNET-AS, EG 29571 1564 99 104 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 553 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 12752 39183 3784 AMAZON-02, US 8151 11767 3235 592 UNINET, MX 9808 10327 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7771 1714 145 UNI2-AS, ES 7545 6219 844 661 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 293 62 ALJAWWALSTC-AS, SA 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 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 11767 11175 UNINET, MX 9808 10327 10239 CHINAMOBILE-CN China Mobile Communications Grou 12479 7771 7626 UNI2-AS, ES 7545 6219 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 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 3920 3895 VIETEL-AS-AP Viettel Group, VN 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 /13:583 /14:1216 /15:2139 /16:13892 /17:8235 /18:13616 /19:24457 /20:43749 /21:51702 /22:111888 /23:100638 /24:599337 /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 6725 7771 UNI2-AS, ES 8151 5976 11767 UNINET, MX 11492 3556 4705 CABLEONE, US 39891 3489 4797 ALJAWWALSTC-AS, SA 6327 3418 3623 SHAW, CA 7155 3121 4175 VIASAT-SP-BACKBONE, US 22773 2508 3369 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2279 12752 AMAZON-02, US 30036 2245 2585 MEDIACOM-ENTERPRISE-BUSINESS, US 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 2:1504 3:572 4:10 5:4551 6:167 7:6 8:1552 9:1 11:172 12:1380 13:348 14:2514 15:348 16:274 17:356 18:912 20:450 21:4 22:188 23:7287 24:2718 25:2 27:2665 29:19 31:3156 32:35 34:81 35:201 36:2410 37:4603 38:8685 39:896 40:159 41:4188 42:1966 43:2520 44:353 45:18281 46:4986 47:291 49:1975 50:1889 51:590 52:1569 54:300 55:1072 56:9 57:240 58:2221 59:1215 60:1167 61:2838 62:2917 63:1828 64:5510 65:2188 66:4600 67:3036 68:1123 69:3962 70:1105 71:608 72:2837 74:2770 75:1644 76:612 77:2666 78:1852 79:1711 80:2205 81:2023 82:2619 83:1386 84:1794 85:3348 86:1023 87:2156 88:1278 89:4300 90:769 91:8321 92:2806 93:2867 94:3911 95:4228 96:1358 97:318 98:979 99:741 100:71 101:1384 102:3678 103:32346 104:4792 105:748 106:995 107:2593 108:1207 109:4078 110:2229 111:3316 112:2046 113:1803 114:1943 115:2131 116:2038 117:2748 118:2878 119:1946 120:1875 121:1354 122:2752 123:2162 124:1563 125:2887 126:94 128:1554 129:947 130:1265 131:1839 132:789 133:450 134:1496 135:329 136:1325 137:1105 138:2879 139:1613 140:1557 141:1477 142:1827 143:1610 144:1060 145:471 146:2123 147:2066 148:2590 149:2877 150:1236 151:1687 152:2098 153:504 154:7371 155:1609 156:3169 157:1895 158:1260 159:2424 160:3535 161:1919 162:3682 163:1828 164:1695 165:2185 166:1359 167:1874 168:4032 169:788 170:5059 171:1002 172:4325 173:3237 174:914 175:1282 176:3615 177:4768 178:3760 179:2258 180:2558 181:4001 182:3369 183:2066 184:2300 185:21434 186:5064 187:4300 188:4193 189:4197 190:9617 191:1540 192:11133 193:9357 194:7735 195:5486 196:3281 197:3783 198:6050 199:8327 200:8002 201:6287 202:10305 203:10518 204:4533 205:3635 206:4564 207:3447 208:4192 209:5178 210:4548 211:2528 212:4517 213:3732 214:1055 215:42 216:6568 217:3101 218:1336 219:376 220:2114 221:1053 222:717 223:2322 End of report