IPv4 R&E Routing Table Report 23:05 GMT Wed 25 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: 984468 Prefixes after maximum aggregation (per Origin AS): 380995 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 483558 Number of IPv4 prefixes with a valid ROA: 549434 Number of IPv4 prefixes with an invalid ROA: 984 Number of IPv4 prefixes with no ROA: 434050 Total ASes present in the Internet Routing Table: 76807 Prefixes per ASN: 12.82 Origin-only ASes present in the Internet Routing Table: 65850 Origin ASes announcing only one prefix: 26884 Transit ASes present in the Internet Routing Table: 10957 Transit-only ASes present in the Internet Routing Table: 533 Paths with bogon ASNs present in the IPv4 Routing Table: 32 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 79 Max AS path prepend of ASN ( 37447) 75 Prefixes from unregistered ASNs in the Routing Table: 1170 Number of instances of unregistered ASNs: 1203 Number of 32-bit ASNs allocated by the RIRs: 46645 Number of 32-bit ASNs visible in the Routing Table: 38386 Prefixes from 32-bit ASNs in the Routing Table: 204674 Number of bogon 32-bit ASNs visible in the Routing Table: 92 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 453 Number of addresses announced to Internet: 3105783552 Equivalent to 185 /8s, 30 /16s and 127 /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: 321575 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 260061 Total APNIC prefixes after maximum aggregation: 77585 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 251134 Unique aggregates announced from the APNIC address blocks: 104376 APNIC Region origin ASes present in the Internet Routing Table: 14619 APNIC Prefixes per ASN: 17.18 APNIC Region origin ASes announcing only one prefix: 4439 APNIC Region transit ASes present in the Internet Routing Table: 1960 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10167 Number of APNIC addresses announced to Internet: 748634368 Equivalent to 44 /8s, 159 /16s and 65 /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: 289309 Total ARIN prefixes after maximum aggregation: 131204 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 290812 Unique aggregates announced from the ARIN address blocks: 139771 ARIN Region origin ASes present in the Internet Routing Table: 19201 ARIN Prefixes per ASN: 15.15 ARIN Region origin ASes announcing only one prefix: 7029 ARIN Region transit ASes present in the Internet Routing Table: 1921 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: 5232 Number of ARIN addresses announced to Internet: 1349600000 Equivalent to 80 /8s, 113 /16s and 67 /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: 275007 Total RIPE prefixes after maximum aggregation: 135093 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 273747 Unique aggregates announced from the RIPE address blocks: 176308 RIPE Region origin ASes present in the Internet Routing Table: 28898 RIPE Prefixes per ASN: 9.47 RIPE Region origin ASes announcing only one prefix: 12057 RIPE Region transit ASes present in the Internet Routing Table: 3978 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: 12490 Number of RIPE addresses announced to Internet: 731194880 Equivalent to 43 /8s, 149 /16s and 38 /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: 123630 Total LACNIC prefixes after maximum aggregation: 29709 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 120147 Unique aggregates announced from the LACNIC address blocks: 48919 LACNIC Region origin ASes present in the Internet Routing Table: 11269 LACNIC Prefixes per ASN: 10.66 LACNIC Region origin ASes announcing only one prefix: 2670 LACNIC Region transit ASes present in the Internet Routing Table: 2515 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 71 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9214 Number of LACNIC addresses announced to Internet: 171210752 Equivalent to 10 /8s, 52 /16s and 120 /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: 35291 Total AfriNIC prefixes after maximum aggregation: 6634 AfriNIC Deaggregation factor: 5.32 Prefixes being announced from the AfriNIC address blocks: 48175 Unique aggregates announced from the AfriNIC address blocks: 13775 AfriNIC Region origin ASes present in the Internet Routing Table: 1920 AfriNIC Prefixes per ASN: 25.09 AfriNIC Region origin ASes announcing only one prefix: 689 AfriNIC Region transit ASes present in the Internet Routing Table: 377 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 79 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1283 Number of AfriNIC addresses announced to Internet: 104937984 Equivalent to 6 /8s, 65 /16s and 58 /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 11369 8759 109 CHINAMOBILE-CN China Mobile Communication 7545 6153 846 652 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4436 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4368 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3918 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3714 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3283 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2895 857 531 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2288 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 13586 40952 5215 AMAZON-02, US 11492 4781 317 604 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3513 8742 853 COGENT-174, US 22773 3351 3032 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 396982 3194 3854 429 GOOGLE-CLOUD-PLATFORM, US 16625 2970 1245 2211 AKAMAI-AS, US 36352 2836 231 858 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 3931 3395 123 AKAMAI-ASN1, NL 9009 3906 359 2108 M247, RO 12389 3114 2304 885 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2399 361 580 TELLCOM-AS, TR 212238 2326 170 1707 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1575 1852 14 TE-AS TE-AS, EG 8551 1425 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 12221 3255 576 UNINET, MX 10620 3505 481 1017 Telmex Colombia S.A., CO 13999 2539 538 354 Mega Cable, S.A. de C.V., MX 11830 1978 369 64 Instituto Costarricense de Electricidad y 28573 1370 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1197 371 22 Telefonica del Peru S.A.A., PE 22884 1062 67 368 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1061 278 33 Techtel LMDS Comunicaciones Interactivas 26615 1051 2487 55 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 1822 644 27 RAYA-AS, EG 24863 1623 389 17 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 1076 523 47 Vodafone-, EG 36914 570 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 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 13586 40952 5215 AMAZON-02, US 8151 12221 3255 576 UNINET, MX 9808 11369 8759 109 CHINAMOBILE-CN China Mobile Communication 12479 7673 1713 148 UNI2-AS, ES 7545 6153 846 652 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4781 317 604 CABLEONE, US 39891 4780 291 66 ALJAWWALSTC-AS, SA 9498 4436 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4368 347 26 FPT-AS-AP FPT Telecom Company, VN 20940 3931 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 12221 11645 UNINET, MX 9808 11369 11260 CHINAMOBILE-CN China Mobile Communications Grou 12479 7673 7525 UNI2-AS, ES 7545 6153 5501 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4780 4714 ALJAWWALSTC-AS, SA 18403 4368 4342 FPT-AS-AP FPT Telecom Company, VN 11492 4781 4177 CABLEONE, US 9498 4436 4125 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 3892 VIETEL-AS-AP Viettel Group, VN 20940 3931 3808 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 23.142.24.0/24 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 /11:92 /12:299 /13:582 /14:1200 /15:2129 /16:13792 /17:8188 /18:13442 /19:24422 /20:43886 /21:51610 /22:111681 /23:102331 /24:610743 /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 6594 7673 UNI2-AS, ES 8151 6434 12221 UNINET, MX 11492 3577 4781 CABLEONE, US 39891 3489 4780 ALJAWWALSTC-AS, SA 6327 3431 3636 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2501 3351 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2350 13586 AMAZON-02, US 30036 2258 2599 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) ---------------------------------------------- 1:2388 2:1483 3:817 4:10 5:4720 6:162 7:6 8:1568 9:1 11:172 12:1346 13:440 14:2527 15:364 16:285 17:379 18:919 20:554 21:4 22:188 23:7592 24:2807 25:2 27:2766 29:19 31:3304 32:35 33:1 34:83 35:254 36:3189 37:4575 38:9340 39:906 40:194 41:4264 42:1894 43:2647 44:373 45:18659 46:5095 47:324 49:1924 50:1883 51:593 52:1558 54:323 55:1101 56:11 57:268 58:2202 59:1294 60:1170 61:2830 62:2924 63:1787 64:5486 65:2175 66:4623 67:3072 68:1117 69:3842 70:1068 71:622 72:2857 74:2778 75:1506 76:606 77:2750 78:1888 79:1726 80:2205 81:2059 82:3165 83:1449 84:1859 85:3441 86:1089 87:2128 88:1307 89:4404 90:776 91:8384 92:2732 93:2929 94:4029 95:4383 96:1432 97:310 98:981 99:685 100:72 101:1421 102:3895 103:32742 104:5207 105:765 106:971 107:2656 108:1246 109:4093 110:2246 111:3276 112:2141 113:1853 114:1992 115:2157 116:2082 117:2542 118:2924 119:1919 120:2080 121:1375 122:2783 123:2199 124:1633 125:2912 126:91 128:1571 129:947 130:1287 131:2042 132:772 133:451 134:1550 135:349 136:1346 137:1116 138:2809 139:1584 140:1609 141:1510 142:1914 143:1907 144:1179 145:553 146:2176 147:2112 148:2709 149:2899 150:1280 151:2110 152:2073 153:523 154:7725 155:1762 156:2977 157:1924 158:1327 159:2495 160:3604 161:1854 162:3871 163:2214 164:1850 165:2023 166:1502 167:1988 168:3953 169:783 170:5119 171:1007 172:4452 173:3347 174:919 175:1325 176:3710 177:4711 178:3781 179:2316 180:2751 181:4077 182:3458 183:2221 184:2065 185:21534 186:5160 187:4570 188:4269 189:4315 190:9590 191:1474 192:11284 193:9454 194:7799 195:5523 196:3297 197:3252 198:6055 199:8552 200:8069 201:6376 202:10283 203:10656 204:4558 205:3604 206:4417 207:3472 208:4263 209:5107 210:4566 211:2539 212:4565 213:3755 214:1014 215:48 216:6747 217:3192 218:1355 219:395 220:2082 221:1150 222:724 223:2529 End of report