IPv4 R&E Routing Table Report 23:05 GMT Tue 30 Dec, 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: 1021512 Prefixes after maximum aggregation (per Origin AS): 393911 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 506004 Number of IPv4 prefixes with a valid ROA: 608837 Number of IPv4 prefixes with an invalid ROA: 618 Number of IPv4 prefixes with no ROA: 412057 Total ASes present in the Internet Routing Table: 77638 Prefixes per ASN: 13.16 Origin-only ASes present in the Internet Routing Table: 66520 Origin ASes announcing only one prefix: 27103 Transit ASes present in the Internet Routing Table: 11118 Transit-only ASes present in the Internet Routing Table: 572 Paths with bogon ASNs present in the IPv4 Routing Table: 42 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 72 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 967 Number of instances of unregistered ASNs: 996 Number of 32-bit ASNs allocated by the RIRs: 48328 Number of 32-bit ASNs visible in the Routing Table: 39529 Prefixes from 32-bit ASNs in the Routing Table: 220245 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 609 Number of addresses announced to Internet: 3104341760 Equivalent to 185 /8s, 8 /16s and 127 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 333760 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 277690 Total APNIC prefixes after maximum aggregation: 80842 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 264116 Unique aggregates announced from the APNIC address blocks: 106440 APNIC Region origin ASes present in the Internet Routing Table: 14920 APNIC Prefixes per ASN: 17.70 APNIC Region origin ASes announcing only one prefix: 4513 APNIC Region transit ASes present in the Internet Routing Table: 2007 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10506 Number of APNIC addresses announced to Internet: 753121280 Equivalent to 44 /8s, 227 /16s and 184 /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: 298552 Total ARIN prefixes after maximum aggregation: 134653 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 298845 Unique aggregates announced from the ARIN address blocks: 145585 ARIN Region origin ASes present in the Internet Routing Table: 19361 ARIN Prefixes per ASN: 15.44 ARIN Region origin ASes announcing only one prefix: 7074 ARIN Region transit ASes present in the Internet Routing Table: 1924 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5421 Number of ARIN addresses announced to Internet: 1342203904 Equivalent to 80 /8s, 0 /16s and 104 /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: 282637 Total RIPE prefixes after maximum aggregation: 140012 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 283647 Unique aggregates announced from the RIPE address blocks: 184177 RIPE Region origin ASes present in the Internet Routing Table: 29125 RIPE Prefixes per ASN: 9.74 RIPE Region origin ASes announcing only one prefix: 12086 RIPE Region transit ASes present in the Internet Routing Table: 4049 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 31 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12897 Number of RIPE addresses announced to Internet: 735141888 Equivalent to 43 /8s, 209 /16s and 96 /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: 125476 Total LACNIC prefixes after maximum aggregation: 30841 LACNIC Deaggregation factor: 4.07 Prefixes being announced from the LACNIC address blocks: 121274 Unique aggregates announced from the LACNIC address blocks: 49783 LACNIC Region origin ASes present in the Internet Routing Table: 11335 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2691 LACNIC Region transit ASes present in the Internet Routing Table: 2551 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9336 Number of LACNIC addresses announced to Internet: 170416640 Equivalent to 10 /8s, 40 /16s and 90 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 36190 Total AfriNIC prefixes after maximum aggregation: 6907 AfriNIC Deaggregation factor: 5.24 Prefixes being announced from the AfriNIC address blocks: 53021 Unique aggregates announced from the AfriNIC address blocks: 19535 AfriNIC Region origin ASes present in the Internet Routing Table: 2005 AfriNIC Prefixes per ASN: 26.44 AfriNIC Region origin ASes announcing only one prefix: 739 AfriNIC Region transit ASes present in the Internet Routing Table: 383 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 72 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1369 Number of AfriNIC addresses announced to Internet: 103145216 Equivalent to 6 /8s, 37 /16s and 223 /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 13410 8729 119 CHINAMOBILE-CN China Mobile Communication 7545 6034 834 579 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4650 542 334 BBIL-AP BHARTI Airtel Ltd., IN 18403 4342 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4052 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3729 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3400 832 183 CMNET-JIANGSU-AP China Mobile communicati 45899 3326 1868 98 VNPT-AS-VN VNPT Corp, VN 17561 3170 199 634 LCS-AS-AP LARUS Limited, HK 24560 2956 865 496 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 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 13998 38461 5442 AMAZON-02, US 22773 4746 3098 374 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4691 311 946 CABLEONE, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3690 1320 82 SHAW, CA 396982 3319 4867 493 GOOGLE-CLOUD-PLATFORM, US 749 3143 54729 2394 DNIC-AS-00749, US 174 3046 8771 867 COGENT-174, US 16625 2858 1226 2137 AKAMAI-AS, US 36352 2703 222 889 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 7278 1711 149 UNI2-AS, ES 39891 4901 302 70 ALJAWWALSTC-AS, SA 9009 3941 368 2271 M247, RO 20940 3831 3393 110 AKAMAI-ASN1, NL 12389 3150 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2564 182 1865 CDNEXT, GB 34984 2421 371 574 TELLCOM-AS, TR 8452 1701 1852 14 TE-AS TE-AS, EG 203020 1617 242 783 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12646 3277 591 UNINET, MX 10620 3433 457 1107 Telmex Colombia S.A., CO 13999 2488 506 351 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 28573 1370 2430 270 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1260 371 22 Telefonica del Peru S.A.A., PE 22884 1057 67 359 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1013 2486 56 TIM SA, BR 18881 905 1127 31 TELEFONICA BRASIL S.A, 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 1982 638 33 RAYA-AS, EG 36992 1850 1536 342 ETISALAT-MISR, EG 24863 1266 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 37069 1100 1096 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 36935 1035 522 33 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 556 82 3 KENET-AS, KE 15399 548 56 55 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 13998 38461 5442 AMAZON-02, US 9808 13410 8729 119 CHINAMOBILE-CN China Mobile Communication 8151 12646 3277 591 UNINET, MX 12479 7278 1711 149 UNI2-AS, ES 7545 6034 834 579 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4901 302 70 ALJAWWALSTC-AS, SA 22773 4746 3098 374 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4691 311 946 CABLEONE, US 9498 4650 542 334 BBIL-AP BHARTI Airtel Ltd., IN 18403 4342 347 24 FPT-AS-AP FPT Telecom Company, 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 9808 13410 13291 CHINAMOBILE-CN China Mobile Communications Grou 8151 12646 12055 UNINET, MX 12479 7278 7129 UNI2-AS, ES 7545 6034 5455 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4901 4831 ALJAWWALSTC-AS, SA 22773 4746 4372 ASN-CXA-ALL-CCI-22773-RDC, US 18403 4342 4318 FPT-AS-AP FPT Telecom Company, VN 9498 4650 4316 BBIL-AP BHARTI Airtel Ltd., IN 7552 4052 4023 VIETEL-AS-AP Viettel Group, VN 7155 3861 3776 VIASAT-SP-BACKBONE, US 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 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 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 174 COGENT-174, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 174 COGENT-174, 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 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS, 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 /11:93 /12:299 /13:577 /14:1197 /15:2089 /16:13648 /17:8167 /18:13446 /19:24716 /20:44696 /21:51908 /22:112864 /23:105459 /24:642282 /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 8151 6851 12646 UNINET, MX 12479 6209 7278 UNI2-AS, ES 39891 3587 4901 ALJAWWALSTC-AS, SA 11492 3536 4691 CABLEONE, US 6327 3478 3690 SHAW, CA 22773 3051 4746 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2455 13998 AMAZON-02, US 30036 2314 2657 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 3433 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) ---------------------------------------------- 1:2458 2:1522 3:979 4:10 5:4997 6:187 7:6 8:1507 9:14 11:172 12:1234 13:601 14:2629 15:418 16:274 17:383 18:914 20:590 21:4 22:188 23:8078 24:2561 25:2 27:2800 29:19 31:3390 32:31 33:1 34:84 35:287 36:4636 37:4515 38:9924 39:1223 40:438 41:4476 42:1917 43:2949 44:413 45:19648 46:5048 47:396 49:2165 50:2055 51:597 52:1250 54:225 55:1116 56:11 57:307 58:2313 59:1351 60:1171 61:3089 62:3085 63:1755 64:6109 65:2128 66:5994 67:3259 68:1504 69:4205 70:1027 71:616 72:3081 74:2952 75:1517 76:600 77:2764 78:1929 79:1784 80:2303 81:2081 82:3927 83:1470 84:2024 85:3664 86:1100 87:2196 88:1358 89:4634 90:833 91:8423 92:2831 93:3021 94:4262 95:4556 96:1448 97:311 98:958 99:784 100:68 101:1331 102:4338 103:32893 104:5463 105:770 106:920 107:2810 108:1211 109:4258 110:2310 111:4005 112:2835 113:1961 114:2093 115:2268 116:2174 117:3181 118:2980 119:2108 120:2424 121:1505 122:2949 123:2284 124:1654 125:2967 126:125 128:1575 129:942 130:1537 131:2266 132:761 133:462 134:1634 135:539 136:1498 137:1209 138:2984 139:1598 140:1771 141:1563 142:2431 143:2135 144:1464 145:626 146:2183 147:2139 148:2778 149:2929 150:1328 151:2593 152:2247 153:834 154:9529 155:2306 156:4716 157:2248 158:1480 159:2729 160:3659 161:1993 162:3987 163:2330 164:1964 165:2652 166:1304 167:2196 168:3898 169:808 170:5454 171:1118 172:4521 173:3422 174:901 175:1353 176:3782 177:4729 178:4324 179:2245 180:2972 181:4352 182:3867 183:2675 184:2039 185:21700 186:5519 187:4776 188:4547 189:4459 190:9655 191:1535 192:11407 193:9513 194:7862 195:5644 196:3253 197:3283 198:6058 199:6105 200:8024 201:6383 202:10488 203:10581 204:4662 205:3716 206:4387 207:3816 208:4351 209:5440 210:4722 211:2681 212:4924 213:4028 214:1065 215:54 216:7119 217:3459 218:1611 219:411 220:2191 221:1298 222:776 223:3249 End of report