IPv4 R&E Routing Table Report 23:05 GMT Mon 24 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: 972201 Prefixes after maximum aggregation (per Origin AS): 372385 Deaggregation factor: 2.61 Unique aggregates announced (without unneeded subnets): 475548 Number of IPv4 prefixes with a valid ROA: 530765 Number of IPv4 prefixes with an invalid ROA: 1257 Number of IPv4 prefixes with no ROA: 440179 Total ASes present in the Internet Routing Table: 76517 Prefixes per ASN: 12.71 Origin-only ASes present in the Internet Routing Table: 65650 Origin ASes announcing only one prefix: 26883 Transit ASes present in the Internet Routing Table: 10867 Transit-only ASes present in the Internet Routing Table: 527 Paths with bogon ASNs present in the IPv4 Routing Table: 12 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: 1041 Number of instances of unregistered ASNs: 1046 Number of 32-bit ASNs allocated by the RIRs: 46191 Number of 32-bit ASNs visible in the Routing Table: 37830 Prefixes from 32-bit ASNs in the Routing Table: 198905 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: 493 Number of addresses announced to Internet: 3112525056 Equivalent to 185 /8s, 133 /16s and 93 /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: 318694 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 255083 Total APNIC prefixes after maximum aggregation: 76151 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 247182 Unique aggregates announced from the APNIC address blocks: 102616 APNIC Region origin ASes present in the Internet Routing Table: 14500 APNIC Prefixes per ASN: 17.05 APNIC Region origin ASes announcing only one prefix: 4424 APNIC Region transit ASes present in the Internet Routing Table: 1964 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: 10018 Number of APNIC addresses announced to Internet: 753412864 Equivalent to 44 /8s, 232 /16s and 43 /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: 286475 Total ARIN prefixes after maximum aggregation: 127516 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 288117 Unique aggregates announced from the ARIN address blocks: 135937 ARIN Region origin ASes present in the Internet Routing Table: 19189 ARIN Prefixes per ASN: 15.01 ARIN Region origin ASes announcing only one prefix: 7021 ARIN Region transit ASes present in the Internet Routing Table: 1923 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: 5151 Number of ARIN addresses announced to Internet: 1348396288 Equivalent to 80 /8s, 94 /16s and 229 /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: 271527 Total RIPE prefixes after maximum aggregation: 132140 RIPE Deaggregation factor: 2.05 Prefixes being announced from the RIPE address blocks: 268949 Unique aggregates announced from the RIPE address blocks: 172756 RIPE Region origin ASes present in the Internet Routing Table: 28839 RIPE Prefixes per ASN: 9.33 RIPE Region origin ASes announcing only one prefix: 12076 RIPE Region transit ASes present in the Internet Routing Table: 3954 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: 12264 Number of RIPE addresses announced to Internet: 732139776 Equivalent to 43 /8s, 163 /16s and 145 /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: 122979 Total LACNIC prefixes after maximum aggregation: 29117 LACNIC Deaggregation factor: 4.22 Prefixes being announced from the LACNIC address blocks: 119953 Unique aggregates announced from the LACNIC address blocks: 48865 LACNIC Region origin ASes present in the Internet Routing Table: 11187 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2665 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: 9127 Number of LACNIC addresses announced to Internet: 173820672 Equivalent to 10 /8s, 92 /16s and 75 /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: 35096 Total AfriNIC prefixes after maximum aggregation: 6814 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 47507 Unique aggregates announced from the AfriNIC address blocks: 14961 AfriNIC Region origin ASes present in the Internet Routing Table: 1912 AfriNIC Prefixes per ASN: 24.85 AfriNIC Region origin ASes announcing only one prefix: 697 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: 1270 Number of AfriNIC addresses announced to Internet: 104496640 Equivalent to 6 /8s, 58 /16s and 126 /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 6219 844 661 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4320 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 3263 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2843 853 533 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 45090 2207 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 4755 2168 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 12765 39187 3786 AMAZON-02, US 11492 4705 312 562 CABLEONE, US 7155 4175 286 83 VIASAT-SP-BACKBONE, US 6327 3623 1320 81 SHAW, CA 174 3544 8763 936 COGENT-174, US 22773 3370 3035 177 ASN-CXA-ALL-CCI-22773-RDC, US 749 3259 54879 2506 DNIC-AS-00749, US 396982 2932 3660 451 GOOGLE-CLOUD-PLATFORM, US 16625 2924 1249 2161 AKAMAI-AS, US 30036 2584 357 307 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 7758 1714 145 UNI2-AS, ES 39891 4797 293 62 ALJAWWALSTC-AS, SA 20940 3890 3395 127 AKAMAI-ASN1, NL 9009 3733 321 1919 M247, RO 12389 2994 2303 893 ROSTELECOM-AS, RU 34984 2367 361 579 TELLCOM-AS, TR 212238 2013 146 1490 CDNEXT, GB 8452 1627 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 3235 592 UNINET, MX 10620 3545 492 952 Telmex Colombia S.A., CO 13999 2515 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 1157 371 22 Telefonica del Peru S.A.A., PE 11664 1157 278 33 Techtel LMDS Comunicaciones Interactivas 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 1620 389 16 LINKdotNET-AS, EG 29571 1562 98 103 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 545 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 12765 39187 3786 AMAZON-02, US 8151 11765 3235 592 UNINET, MX 9808 10335 8753 88 CHINAMOBILE-CN China Mobile Communication 12479 7758 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 4320 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 11765 11173 UNINET, MX 9808 10335 10247 CHINAMOBILE-CN China Mobile Communications Grou 12479 7758 7613 UNI2-AS, ES 7545 6219 5558 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4797 4735 ALJAWWALSTC-AS, SA 18403 4320 4295 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 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 /14:1215 /15:2139 /16:13905 /17:8237 /18:13621 /19:24450 /20:43760 /21:51730 /22:111946 /23:100638 /24:599503 /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 6711 7758 UNI2-AS, ES 8151 5974 11765 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 2509 3370 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2270 12765 AMAZON-02, US 30036 2244 2584 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 2:1501 3:572 4:10 5:4522 6:165 7:6 8:1548 9:1 11:172 12:1380 13:349 14:2513 15:347 16:274 17:356 18:916 20:450 21:4 22:188 23:7280 24:2728 25:2 27:2670 29:19 31:3149 32:35 34:81 35:201 36:2413 37:4602 38:8654 39:896 40:157 41:4196 42:1961 43:2526 44:353 45:18246 46:4971 47:290 49:1974 50:1887 51:590 52:1569 54:300 55:1092 56:9 57:239 58:2222 59:1216 60:1168 61:2840 62:2915 63:1827 64:5503 65:2190 66:4601 67:3029 68:1123 69:3967 70:1105 71:608 72:2869 74:2770 75:1646 76:612 77:2661 78:1850 79:1725 80:2204 81:2021 82:2617 83:1388 84:1791 85:3349 86:1022 87:2156 88:1280 89:4304 90:761 91:8316 92:2805 93:2862 94:3908 95:4226 96:1357 97:318 98:978 99:742 100:71 101:1382 102:3667 103:32415 104:4784 105:747 106:995 107:2589 108:1202 109:4079 110:2228 111:3319 112:2049 113:1802 114:1943 115:2124 116:2043 117:2784 118:2879 119:1959 120:1875 121:1354 122:2750 123:2164 124:1563 125:2886 126:94 128:1553 129:948 130:1267 131:1840 132:787 133:450 134:1527 135:329 136:1328 137:1109 138:2886 139:1613 140:1560 141:1476 142:1827 143:1609 144:1064 145:464 146:2129 147:2067 148:2585 149:2872 150:1235 151:1694 152:2102 153:504 154:7627 155:1603 156:3143 157:1899 158:1255 159:2426 160:3542 161:1888 162:3681 163:1835 164:1698 165:2184 166:1359 167:1878 168:4026 169:787 170:5040 171:1002 172:4328 173:3236 174:915 175:1279 176:3617 177:4718 178:3749 179:2232 180:2563 181:4004 182:3369 183:2074 184:2296 185:21453 186:5084 187:4308 188:4197 189:4178 190:9629 191:1523 192:11136 193:9367 194:7736 195:5479 196:3262 197:3774 198:6055 199:8326 200:7988 201:6258 202:10309 203:10532 204:4536 205:3642 206:4574 207:3455 208:4186 209:5142 210:4550 211:2534 212:4511 213:3725 214:1064 215:48 216:6576 217:3099 218:1338 219:376 220:2118 221:1052 222:718 223:2319 End of report