IPv4 R&E Routing Table Report 23:05 GMT Sat 21 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: 982718 Prefixes after maximum aggregation (per Origin AS): 380014 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482565 Number of IPv4 prefixes with a valid ROA: 547630 Number of IPv4 prefixes with an invalid ROA: 973 Number of IPv4 prefixes with no ROA: 434115 Total ASes present in the Internet Routing Table: 76756 Prefixes per ASN: 12.80 Origin-only ASes present in the Internet Routing Table: 65798 Origin ASes announcing only one prefix: 26848 Transit ASes present in the Internet Routing Table: 10958 Transit-only ASes present in the Internet Routing Table: 542 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: 1181 Number of instances of unregistered ASNs: 1218 Number of 32-bit ASNs allocated by the RIRs: 46694 Number of 32-bit ASNs visible in the Routing Table: 38333 Prefixes from 32-bit ASNs in the Routing Table: 204402 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: 441 Number of addresses announced to Internet: 3105531904 Equivalent to 185 /8s, 26 /16s and 168 /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: 321190 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 259406 Total APNIC prefixes after maximum aggregation: 77274 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 250775 Unique aggregates announced from the APNIC address blocks: 104447 APNIC Region origin ASes present in the Internet Routing Table: 14588 APNIC Prefixes per ASN: 17.19 APNIC Region origin ASes announcing only one prefix: 4421 APNIC Region transit ASes present in the Internet Routing Table: 1962 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: 748651776 Equivalent to 44 /8s, 159 /16s and 133 /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: 288828 Total ARIN prefixes after maximum aggregation: 131065 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290644 Unique aggregates announced from the ARIN address blocks: 139619 ARIN Region origin ASes present in the Internet Routing Table: 19188 ARIN Prefixes per ASN: 15.15 ARIN Region origin ASes announcing only one prefix: 7025 ARIN Region transit ASes present in the Internet Routing Table: 1932 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: 5219 Number of ARIN addresses announced to Internet: 1349598976 Equivalent to 80 /8s, 113 /16s and 63 /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: 274241 Total RIPE prefixes after maximum aggregation: 134694 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272965 Unique aggregates announced from the RIPE address blocks: 175540 RIPE Region origin ASes present in the Internet Routing Table: 28891 RIPE Prefixes per ASN: 9.45 RIPE Region origin ASes announcing only one prefix: 12058 RIPE Region transit ASes present in the Internet Routing Table: 3981 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: 12482 Number of RIPE addresses announced to Internet: 730992640 Equivalent to 43 /8s, 146 /16s and 16 /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: 123879 Total LACNIC prefixes after maximum aggregation: 29575 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 120402 Unique aggregates announced from the LACNIC address blocks: 48935 LACNIC Region origin ASes present in the Internet Routing Table: 11259 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2650 LACNIC Region transit ASes present in the Internet Routing Table: 2507 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: 9211 Number of LACNIC addresses announced to Internet: 171276544 Equivalent to 10 /8s, 53 /16s and 121 /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: 35183 Total AfriNIC prefixes after maximum aggregation: 6647 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 47491 Unique aggregates announced from the AfriNIC address blocks: 13627 AfriNIC Region origin ASes present in the Internet Routing Table: 1923 AfriNIC Prefixes per ASN: 24.70 AfriNIC Region origin ASes announcing only one prefix: 694 AfriNIC Region transit ASes present in the Internet Routing Table: 376 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: 1287 Number of AfriNIC addresses announced to Internet: 104810752 Equivalent to 6 /8s, 63 /16s and 73 /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 6180 846 648 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4433 534 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4403 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3918 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3710 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3279 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2894 857 535 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2195 812 179 CMNET-JIANGSU-AP China Mobile communicati 4755 2182 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 13633 40956 5229 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 3351 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 2993 1255 2219 AKAMAI-AS, US 36352 2819 230 860 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 7674 1713 148 UNI2-AS, ES 39891 4780 291 66 ALJAWWALSTC-AS, SA 20940 3935 3395 123 AKAMAI-ASN1, NL 9009 3894 358 2099 M247, RO 12389 3114 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 12216 3256 574 UNINET, MX 10620 3505 481 1017 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 1199 371 22 Telefonica del Peru S.A.A., PE 22884 1078 68 361 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 1821 644 27 RAYA-AS, EG 24863 1619 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 13633 40956 5229 AMAZON-02, US 8151 12216 3256 574 UNINET, MX 9808 11227 8759 105 CHINAMOBILE-CN China Mobile Communication 12479 7674 1713 148 UNI2-AS, ES 7545 6180 846 648 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4780 317 603 CABLEONE, US 39891 4780 291 66 ALJAWWALSTC-AS, SA 9498 4433 534 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4403 347 26 FPT-AS-AP FPT Telecom Company, VN 20940 3935 3395 123 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 12216 11642 UNINET, MX 9808 11227 11122 CHINAMOBILE-CN China Mobile Communications Grou 12479 7674 7526 UNI2-AS, ES 7545 6180 5532 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4780 4714 ALJAWWALSTC-AS, SA 18403 4403 4377 FPT-AS-AP FPT Telecom Company, VN 11492 4780 4177 CABLEONE, US 9498 4433 4122 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 3892 VIETEL-AS-AP Viettel Group, VN 20940 3935 3812 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 /15:2127 /16:13806 /17:8190 /18:13438 /19:24407 /20:43828 /21:51434 /22:111661 /23:102223 /24:609361 /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 6596 7674 UNI2-AS, ES 8151 6430 12216 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 2501 3351 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2348 13633 AMAZON-02, US 30036 2254 2595 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2192 3505 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) ---------------------------------------------- 1:2386 2:1441 3:827 4:10 5:4763 6:162 7:6 8:1570 9:1 11:172 12:1347 13:448 14:2525 15:363 16:285 17:376 18:922 20:549 21:4 22:188 23:7568 24:2816 25:2 27:2766 29:19 31:3284 32:35 33:1 34:83 35:254 36:3160 37:4555 38:9375 39:906 40:174 41:4260 42:1932 43:2641 44:378 45:18633 46:5086 47:319 49:1946 50:1878 51:592 52:1564 54:324 55:1082 56:11 57:268 58:2207 59:1289 60:1171 61:2830 62:2919 63:1792 64:5472 65:2173 66:4624 67:3068 68:1107 69:3840 70:1068 71:622 72:2856 74:2782 75:1505 76:622 77:2732 78:1857 79:1712 80:2206 81:2051 82:3165 83:1441 84:1864 85:3443 86:1095 87:2119 88:1306 89:4403 90:770 91:8383 92:2722 93:2927 94:4033 95:4345 96:1428 97:311 98:981 99:687 100:72 101:1424 102:3875 103:32746 104:5150 105:765 106:1043 107:2662 108:1240 109:4086 110:2237 111:3285 112:2125 113:1828 114:1993 115:2159 116:2079 117:2536 118:2875 119:1919 120:2056 121:1372 122:2785 123:2181 124:1633 125:2909 126:91 128:1573 129:947 130:1286 131:2037 132:774 133:451 134:1543 135:349 136:1347 137:1117 138:2842 139:1583 140:1618 141:1501 142:1914 143:1872 144:1172 145:544 146:2175 147:2113 148:2694 149:2930 150:1277 151:1983 152:2075 153:520 154:7346 155:1754 156:2825 157:1917 158:1329 159:2491 160:3603 161:1850 162:3854 163:2213 164:1823 165:2001 166:1493 167:1975 168:3971 169:786 170:5125 171:1006 172:4449 173:3339 174:919 175:1303 176:3712 177:4719 178:3740 179:2319 180:2751 181:4081 182:3461 183:2198 184:2067 185:21397 186:5173 187:4595 188:4255 189:4313 190:9579 191:1489 192:11281 193:9467 194:7796 195:5536 196:3246 197:3246 198:6060 199:8514 200:8080 201:6383 202:10267 203:10667 204:4546 205:3608 206:4431 207:3461 208:4269 209:5119 210:4567 211:2537 212:4579 213:3736 214:1027 215:48 216:6747 217:3181 218:1353 219:394 220:2083 221:1145 222:724 223:2494 End of report