IPv4 R&E Routing Table Report 23:05 GMT Wed 29 Oct, 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: 1011200 Prefixes after maximum aggregation (per Origin AS): 392500 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 499404 Number of IPv4 prefixes with a valid ROA: 583384 Number of IPv4 prefixes with an invalid ROA: 564 Number of IPv4 prefixes with no ROA: 427252 Total ASes present in the Internet Routing Table: 77369 Prefixes per ASN: 13.07 Origin-only ASes present in the Internet Routing Table: 66299 Origin ASes announcing only one prefix: 27073 Transit ASes present in the Internet Routing Table: 11070 Transit-only ASes present in the Internet Routing Table: 546 Paths with bogon ASNs present in the IPv4 Routing Table: 27 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: 1004 Number of instances of unregistered ASNs: 1034 Number of 32-bit ASNs allocated by the RIRs: 47827 Number of 32-bit ASNs visible in the Routing Table: 39159 Prefixes from 32-bit ASNs in the Routing Table: 214829 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 431 Number of addresses announced to Internet: 3113119744 Equivalent to 185 /8s, 142 /16s and 112 /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: 330558 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 270723 Total APNIC prefixes after maximum aggregation: 80376 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 260462 Unique aggregates announced from the APNIC address blocks: 105960 APNIC Region origin ASes present in the Internet Routing Table: 14814 APNIC Prefixes per ASN: 17.58 APNIC Region origin ASes announcing only one prefix: 4496 APNIC Region transit ASes present in the Internet Routing Table: 2008 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 42 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10394 Number of APNIC addresses announced to Internet: 751718656 Equivalent to 44 /8s, 206 /16s and 81 /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: 298664 Total ARIN prefixes after maximum aggregation: 134999 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 299215 Unique aggregates announced from the ARIN address blocks: 144835 ARIN Region origin ASes present in the Internet Routing Table: 19350 ARIN Prefixes per ASN: 15.46 ARIN Region origin ASes announcing only one prefix: 7116 ARIN Region transit ASes present in the Internet Routing Table: 1912 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: 5390 Number of ARIN addresses announced to Internet: 1353248000 Equivalent to 80 /8s, 168 /16s and 237 /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: 280590 Total RIPE prefixes after maximum aggregation: 139214 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 280802 Unique aggregates announced from the RIPE address blocks: 181917 RIPE Region origin ASes present in the Internet Routing Table: 29090 RIPE Prefixes per ASN: 9.65 RIPE Region origin ASes announcing only one prefix: 12095 RIPE Region transit ASes present in the Internet Routing Table: 4055 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12789 Number of RIPE addresses announced to Internet: 733829376 Equivalent to 43 /8s, 189 /16s and 89 /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: 125145 Total LACNIC prefixes after maximum aggregation: 30426 LACNIC Deaggregation factor: 4.11 Prefixes being announced from the LACNIC address blocks: 121241 Unique aggregates announced from the LACNIC address blocks: 49475 LACNIC Region origin ASes present in the Internet Routing Table: 11308 LACNIC Prefixes per ASN: 10.72 LACNIC Region origin ASes announcing only one prefix: 2672 LACNIC Region transit ASes present in the Internet Routing Table: 2541 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 38 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9285 Number of LACNIC addresses announced to Internet: 170692864 Equivalent to 10 /8s, 44 /16s and 145 /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: 35074 Total AfriNIC prefixes after maximum aggregation: 6804 AfriNIC Deaggregation factor: 5.15 Prefixes being announced from the AfriNIC address blocks: 49049 Unique aggregates announced from the AfriNIC address blocks: 16840 AfriNIC Region origin ASes present in the Internet Routing Table: 1932 AfriNIC Prefixes per ASN: 25.39 AfriNIC Region origin ASes announcing only one prefix: 694 AfriNIC Region transit ASes present in the Internet Routing Table: 368 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: 1301 Number of AfriNIC addresses announced to Internet: 103370752 Equivalent to 6 /8s, 41 /16s and 80 /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 13345 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6133 834 590 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4493 537 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4385 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 3985 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3715 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3308 1869 99 VNPT-AS-VN VNPT Corp, VN 56046 3248 828 181 CMNET-JIANGSU-AP China Mobile communicati 24560 2936 864 504 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2482 272 1916 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH 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 14397 41100 5364 AMAZON-02, US 11492 4772 316 800 CABLEONE, US 22773 4644 3110 403 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3860 286 85 VIASAT-SP-BACKBONE, US 6327 3686 1320 82 SHAW, CA 396982 3279 4826 470 GOOGLE-CLOUD-PLATFORM, US 749 3217 54766 2468 DNIC-AS-00749, US 4155 3140 243 1752 USDA-1, US 16625 2859 1218 2141 AKAMAI-AS, US 36352 2854 231 908 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 7310 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 4011 377 2284 M247, RO 20940 3891 3395 122 AKAMAI-ASN1, NL 12389 3095 2307 828 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2503 176 1812 CDNEXT, GB 34984 2415 363 576 TELLCOM-AS, TR 203020 1712 206 1005 HOSTROYALE, IN 8452 1672 1852 14 TE-AS TE-AS, EG 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 12476 3298 573 UNINET, MX 10620 3441 461 1115 Telmex Colombia S.A., CO 13999 2510 511 350 Mega Cable, S.A. de C.V., MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 28573 1374 2433 261 Claro NXT Telecomunicacoes Ltda, BR 3816 1353 789 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1275 371 23 Telefonica del Peru S.A.A., PE 11664 1261 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1056 67 361 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1026 2486 56 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 1964 630 32 RAYA-AS, EG 36992 1678 1509 399 ETISALAT-MISR, EG 29571 1284 102 52 ORANGE-COTE-IVOIRE, CI 24863 1262 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 37069 1085 1096 13 MOBINIL, EG 36935 1081 523 47 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 567 82 3 KENET-AS, KE 37342 536 32 1 MOVITEL, MZ 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 14397 41100 5364 AMAZON-02, US 9808 13345 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12476 3298 573 UNINET, MX 12479 7310 1711 149 UNI2-AS, ES 7545 6133 834 590 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 11492 4772 316 800 CABLEONE, US 22773 4644 3110 403 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4493 537 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4385 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 13345 13228 CHINAMOBILE-CN China Mobile Communications Grou 8151 12476 11903 UNINET, MX 12479 7310 7161 UNI2-AS, ES 7545 6133 5543 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4385 4361 FPT-AS-AP FPT Telecom Company, VN 22773 4644 4241 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4493 4182 BBIL-AP BHARTI Airtel Ltd., IN 11492 4772 3972 CABLEONE, US 7552 3985 3957 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 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 6461 ZAYO-6461, 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 397015 UNALLOCATED 8.44.246.0/24 3356 LEVEL3, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 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 /12:300 /13:579 /14:1196 /15:2122 /16:13767 /17:8150 /18:13437 /19:24572 /20:44247 /21:51898 /22:112583 /23:104495 /24:633690 /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 6673 12476 UNINET, MX 12479 6269 7310 UNI2-AS, ES 11492 3585 4772 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3474 3686 SHAW, CA 22773 2987 4644 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2819 3860 VIASAT-SP-BACKBONE, US 16509 2425 14397 AMAZON-02, US 30036 2303 2645 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2199 3441 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) ---------------------------------------------- 1:2437 2:1523 3:965 4:10 5:4895 6:171 7:6 8:1507 9:4 11:172 12:1238 13:549 14:2661 15:401 16:303 17:385 18:906 20:580 21:4 22:188 23:8030 24:2559 25:2 27:2793 29:19 31:3357 32:31 33:1 34:84 35:274 36:4512 37:4547 38:9363 39:1097 40:469 41:4111 42:1926 43:2823 44:396 45:19249 46:5178 47:369 49:2142 50:2046 51:595 52:1629 54:359 55:1105 56:11 57:288 58:2316 59:1316 60:1196 61:2963 62:3097 63:1758 64:5853 65:2130 66:5871 67:3232 68:1486 69:4117 70:1041 71:627 72:2986 74:2861 75:1503 76:602 77:2761 78:1901 79:1784 80:2256 81:2112 82:3543 83:1466 84:1983 85:3574 86:1101 87:2139 88:1327 89:4520 90:811 91:8397 92:2807 93:2991 94:4158 95:4536 96:1470 97:312 98:947 99:754 100:71 101:1314 102:4135 103:32760 104:5453 105:775 106:899 107:2790 108:1200 109:4206 110:2258 111:3842 112:2735 113:1884 114:2084 115:2245 116:2114 117:3058 118:3049 119:2027 120:2342 121:1492 122:2810 123:2241 124:1709 125:2912 126:124 128:1568 129:959 130:1424 131:2194 132:781 133:461 134:1620 135:365 136:1491 137:1133 138:2824 139:1585 140:1659 141:1565 142:2190 143:2102 144:1311 145:627 146:2182 147:2129 148:2760 149:2818 150:1297 151:2647 152:2263 153:582 154:8123 155:2207 156:3203 157:2006 158:1430 159:2602 160:3638 161:2005 162:3967 163:2308 164:1953 165:2555 166:1509 167:2122 168:3787 169:758 170:5418 171:1061 172:4480 173:3427 174:906 175:1349 176:3755 177:4766 178:4319 179:2313 180:2890 181:4296 182:3771 183:2566 184:2050 185:21655 186:5396 187:4729 188:4390 189:4476 190:9710 191:1571 192:11393 193:9486 194:7833 195:5579 196:3179 197:3343 198:6104 199:8847 200:8073 201:6363 202:10444 203:10603 204:4599 205:3636 206:4358 207:3714 208:4243 209:5353 210:4693 211:2670 212:4882 213:3955 214:1038 215:53 216:7137 217:3391 218:1577 219:400 220:2199 221:1261 222:754 223:3122 End of report