IPv4 R&E Routing Table Report 23:05 GMT Fri 20 Jun, 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: 982869 Prefixes after maximum aggregation (per Origin AS): 379953 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482292 Number of IPv4 prefixes with a valid ROA: 547839 Number of IPv4 prefixes with an invalid ROA: 967 Number of IPv4 prefixes with no ROA: 434063 Total ASes present in the Internet Routing Table: 76758 Prefixes per ASN: 12.80 Origin-only ASes present in the Internet Routing Table: 65803 Origin ASes announcing only one prefix: 26850 Transit ASes present in the Internet Routing Table: 10955 Transit-only ASes present in the Internet Routing Table: 543 Paths with bogon ASNs present in the IPv4 Routing Table: 35 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 73 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1198 Number of instances of unregistered ASNs: 1235 Number of 32-bit ASNs allocated by the RIRs: 46692 Number of 32-bit ASNs visible in the Routing Table: 38337 Prefixes from 32-bit ASNs in the Routing Table: 204523 Number of bogon 32-bit ASNs visible in the Routing Table: 98 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 443 Number of addresses announced to Internet: 3105679360 Equivalent to 185 /8s, 28 /16s and 232 /24s Percentage of available address space announced: 83.9 Percentage of allocated address space announced: 83.9 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: 321207 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 259461 Total APNIC prefixes after maximum aggregation: 77259 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 250808 Unique aggregates announced from the APNIC address blocks: 104408 APNIC Region origin ASes present in the Internet Routing Table: 14589 APNIC Prefixes per ASN: 17.19 APNIC Region origin ASes announcing only one prefix: 4417 APNIC Region transit ASes present in the Internet Routing Table: 1965 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10134 Number of APNIC addresses announced to Internet: 748650752 Equivalent to 44 /8s, 159 /16s and 129 /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: 288777 Total ARIN prefixes after maximum aggregation: 131058 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290559 Unique aggregates announced from the ARIN address blocks: 139551 ARIN Region origin ASes present in the Internet Routing Table: 19188 ARIN Prefixes per ASN: 15.14 ARIN Region origin ASes announcing only one prefix: 7027 ARIN Region transit ASes present in the Internet Routing Table: 1929 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5223 Number of ARIN addresses announced to Internet: 1349546752 Equivalent to 80 /8s, 112 /16s and 115 /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: 274262 Total RIPE prefixes after maximum aggregation: 134668 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 273001 Unique aggregates announced from the RIPE address blocks: 175453 RIPE Region origin ASes present in the Internet Routing Table: 28895 RIPE Prefixes per ASN: 9.45 RIPE Region origin ASes announcing only one prefix: 12061 RIPE Region transit ASes present in the Internet Routing Table: 3980 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 73 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12489 Number of RIPE addresses announced to Internet: 731042560 Equivalent to 43 /8s, 146 /16s and 211 /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: 123887 Total LACNIC prefixes after maximum aggregation: 29578 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120435 Unique aggregates announced from the LACNIC address blocks: 48916 LACNIC Region origin ASes present in the Internet Routing Table: 11258 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2654 LACNIC Region transit ASes present in the Internet Routing Table: 2504 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 71 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9210 Number of LACNIC addresses announced to Internet: 171275520 Equivalent to 10 /8s, 53 /16s and 117 /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: 35284 Total AfriNIC prefixes after maximum aggregation: 6626 AfriNIC Deaggregation factor: 5.33 Prefixes being announced from the AfriNIC address blocks: 47623 Unique aggregates announced from the AfriNIC address blocks: 13566 AfriNIC Region origin ASes present in the Internet Routing Table: 1918 AfriNIC Prefixes per ASN: 24.83 AfriNIC Region origin ASes announcing only one prefix: 691 AfriNIC Region transit ASes present in the Internet Routing Table: 375 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1281 Number of AfriNIC addresses announced to Internet: 104954368 Equivalent to 6 /8s, 65 /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 11227 8759 105 CHINAMOBILE-CN China Mobile Communication 7545 6181 846 648 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4431 534 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4427 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3918 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3712 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3279 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2895 857 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2195 812 179 CMNET-JIANGSU-AP China Mobile communicati 4755 2181 434 194 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 13629 40955 5230 AMAZON-02, US 11492 4780 317 603 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3635 1320 81 SHAW, CA 174 3581 8743 860 COGENT-174, US 22773 3350 3032 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 396982 3192 3854 428 GOOGLE-CLOUD-PLATFORM, US 16625 2996 1256 2220 AKAMAI-AS, US 36352 2823 230 852 AS-COLOCROSSING, 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 7673 1713 148 UNI2-AS, ES 39891 4780 291 66 ALJAWWALSTC-AS, SA 20940 3938 3395 122 AKAMAI-ASN1, NL 9009 3894 358 2099 M247, RO 12389 3106 2304 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2401 361 575 TELLCOM-AS, TR 212238 2313 169 1695 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1573 1852 14 TE-AS TE-AS, EG 8551 1420 366 39 BEZEQ-INTERNATIONAL-AS Bezeqint Internet 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 12214 3256 575 UNINET, MX 10620 3504 481 1016 Telmex Colombia S.A., CO 13999 2536 537 354 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1371 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 11664 1208 278 33 Techtel LMDS Comunicaciones Interactivas 6147 1197 371 22 Telefonica del Peru S.A.A., PE 22884 1061 67 370 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1048 2503 52 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 1820 644 27 RAYA-AS, EG 24863 1620 389 16 LINKdotNET-AS, EG 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1077 523 47 Vodafone-, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 560 82 3 KENET-AS, KE 15399 543 57 57 WANANCHI-, 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 13629 40955 5230 AMAZON-02, US 8151 12214 3256 575 UNINET, MX 9808 11227 8759 105 CHINAMOBILE-CN China Mobile Communication 12479 7673 1713 148 UNI2-AS, ES 7545 6181 846 648 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4780 317 603 CABLEONE, US 39891 4780 291 66 ALJAWWALSTC-AS, SA 9498 4431 534 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4427 347 26 FPT-AS-AP FPT Telecom Company, VN 20940 3938 3395 122 AKAMAI-ASN1, NL 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 12214 11639 UNINET, MX 9808 11227 11122 CHINAMOBILE-CN China Mobile Communications Grou 12479 7673 7525 UNI2-AS, ES 7545 6181 5533 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4780 4714 ALJAWWALSTC-AS, SA 18403 4427 4401 FPT-AS-AP FPT Telecom Company, VN 11492 4780 4177 CABLEONE, US 9498 4431 4120 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 3892 VIETEL-AS-AP Viettel Group, VN 20940 3938 3816 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 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 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 395195 UNALLOCATED 8.38.115.0/24 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 23.140.216.0/24 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /9:14 /10:41 /11:92 /12:300 /13:581 /14:1199 /15:2128 /16:13807 /17:8191 /18:13439 /19:24409 /20:43848 /21:51444 /22:111655 /23:102292 /24:609413 /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 6595 7673 UNI2-AS, ES 8151 6429 12214 UNINET, MX 11492 3576 4780 CABLEONE, US 39891 3489 4780 ALJAWWALSTC-AS, SA 6327 3431 3635 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2500 3350 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2344 13629 AMAZON-02, US 30036 2254 2595 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2191 3504 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) ---------------------------------------------- 1:2387 2:1497 3:827 4:10 5:4766 6:162 7:6 8:1571 9:1 11:172 12:1347 13:448 14:2526 15:363 16:285 17:376 18:918 20:548 21:4 22:188 23:7571 24:2815 25:2 27:2765 29:19 31:3295 32:35 33:1 34:83 35:254 36:3159 37:4563 38:9378 39:907 40:169 41:4286 42:1962 43:2642 44:378 45:18654 46:5088 47:319 49:1946 50:1878 51:592 52:1564 54:322 55:1082 56:11 57:268 58:2209 59:1289 60:1171 61:2832 62:2918 63:1792 64:5468 65:2173 66:4621 67:3066 68:1119 69:3839 70:1068 71:622 72:2853 74:2779 75:1505 76:622 77:2721 78:1884 79:1715 80:2206 81:2050 82:3167 83:1441 84:1864 85:3376 86:1090 87:2117 88:1306 89:4411 90:770 91:8355 92:2720 93:2918 94:4030 95:4370 96:1428 97:311 98:981 99:687 100:72 101:1421 102:3879 103:32741 104:5151 105:765 106:1043 107:2663 108:1234 109:4083 110:2237 111:3285 112:2127 113:1826 114:1992 115:2159 116:2077 117:2536 118:2880 119:1919 120:2056 121:1371 122:2785 123:2182 124:1633 125:2909 126:91 128:1572 129:947 130:1288 131:2037 132:775 133:451 134:1540 135:346 136:1348 137:1115 138:2855 139:1583 140:1617 141:1503 142:1906 143:1861 144:1170 145:545 146:2176 147:2108 148:2701 149:2916 150:1274 151:1972 152:2079 153:524 154:7343 155:1752 156:2849 157:1924 158:1331 159:2492 160:3599 161:1850 162:3855 163:2210 164:1831 165:1993 166:1488 167:1977 168:3976 169:782 170:5133 171:1008 172:4449 173:3338 174:919 175:1306 176:3710 177:4725 178:3678 179:2319 180:2751 181:4077 182:3460 183:2203 184:2068 185:21423 186:5172 187:4575 188:4265 189:4316 190:9570 191:1491 192:11268 193:9458 194:7806 195:5525 196:3278 197:3248 198:6060 199:8524 200:8078 201:6390 202:10267 203:10661 204:4543 205:3605 206:4432 207:3465 208:4269 209:5116 210:4566 211:2533 212:4578 213:3735 214:1031 215:48 216:6746 217:3185 218:1353 219:394 220:2083 221:1145 222:724 223:2491 End of report