IPv4 R&E Routing Table Report 23:05 GMT Tue 08 Jul, 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: 982314 Prefixes after maximum aggregation (per Origin AS): 381593 Deaggregation factor: 2.57 Unique aggregates announced (without unneeded subnets): 485169 Number of IPv4 prefixes with a valid ROA: 552902 Number of IPv4 prefixes with an invalid ROA: 641 Number of IPv4 prefixes with no ROA: 428771 Total ASes present in the Internet Routing Table: 76861 Prefixes per ASN: 12.78 Origin-only ASes present in the Internet Routing Table: 65857 Origin ASes announcing only one prefix: 26881 Transit ASes present in the Internet Routing Table: 11004 Transit-only ASes present in the Internet Routing Table: 541 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: 1103 Number of instances of unregistered ASNs: 1141 Number of 32-bit ASNs allocated by the RIRs: 46788 Number of 32-bit ASNs visible in the Routing Table: 38462 Prefixes from 32-bit ASNs in the Routing Table: 205144 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: 418 Number of addresses announced to Internet: 3104291584 Equivalent to 185 /8s, 7 /16s and 187 /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: 321013 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 261359 Total APNIC prefixes after maximum aggregation: 77549 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 252175 Unique aggregates announced from the APNIC address blocks: 104710 APNIC Region origin ASes present in the Internet Routing Table: 14655 APNIC Prefixes per ASN: 17.21 APNIC Region origin ASes announcing only one prefix: 4445 APNIC Region transit ASes present in the Internet Routing Table: 1976 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: 10204 Number of APNIC addresses announced to Internet: 748957696 Equivalent to 44 /8s, 164 /16s and 48 /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: 288912 Total ARIN prefixes after maximum aggregation: 131444 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290472 Unique aggregates announced from the ARIN address blocks: 140519 ARIN Region origin ASes present in the Internet Routing Table: 19199 ARIN Prefixes per ASN: 15.13 ARIN Region origin ASes announcing only one prefix: 7034 ARIN Region transit ASes present in the Internet Routing Table: 1923 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: 5234 Number of ARIN addresses announced to Internet: 1349063936 Equivalent to 80 /8s, 105 /16s and 21 /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: 275235 Total RIPE prefixes after maximum aggregation: 135490 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274193 Unique aggregates announced from the RIPE address blocks: 176649 RIPE Region origin ASes present in the Internet Routing Table: 28921 RIPE Prefixes per ASN: 9.48 RIPE Region origin ASes announcing only one prefix: 12043 RIPE Region transit ASes present in the Internet Routing Table: 3999 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: 12516 Number of RIPE addresses announced to Internet: 731246848 Equivalent to 43 /8s, 149 /16s and 241 /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: 124227 Total LACNIC prefixes after maximum aggregation: 29783 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 120621 Unique aggregates announced from the LACNIC address blocks: 49069 LACNIC Region origin ASes present in the Internet Routing Table: 11271 LACNIC Prefixes per ASN: 10.70 LACNIC Region origin ASes announcing only one prefix: 2664 LACNIC Region transit ASes present in the Internet Routing Table: 2531 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: 9223 Number of LACNIC addresses announced to Internet: 171180544 Equivalent to 10 /8s, 52 /16s and 2 /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: 31478 Total AfriNIC prefixes after maximum aggregation: 6597 AfriNIC Deaggregation factor: 4.77 Prefixes being announced from the AfriNIC address blocks: 44435 Unique aggregates announced from the AfriNIC address blocks: 13848 AfriNIC Region origin ASes present in the Internet Routing Table: 1920 AfriNIC Prefixes per ASN: 23.14 AfriNIC Region origin ASes announcing only one prefix: 695 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: 79 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1285 Number of AfriNIC addresses announced to Internet: 103599360 Equivalent to 6 /8s, 44 /16s and 205 /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 11743 8759 114 CHINAMOBILE-CN China Mobile Communication 7545 6147 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4439 535 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4414 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3914 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3701 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3289 1869 102 VNPT-AS-VN VNPT Corp, VN 24560 2901 862 523 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2585 812 179 CMNET-JIANGSU-AP China Mobile communicati 4755 2185 434 193 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 13517 40952 5221 AMAZON-02, US 11492 4787 317 605 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3529 8771 862 COGENT-174, US 22773 3342 3034 168 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 396982 3193 3854 430 GOOGLE-CLOUD-PLATFORM, US 16625 2960 1242 2205 AKAMAI-AS, US 4155 2839 215 1736 USDA-1, 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 7666 1713 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3934 3395 123 AKAMAI-ASN1, NL 9009 3786 360 2110 M247, RO 12389 3118 2305 882 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2401 361 581 TELLCOM-AS, TR 212238 2353 168 1721 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1552 1852 14 TE-AS TE-AS, EG 8551 1429 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 12276 3255 575 UNINET, MX 10620 3509 481 1020 Telmex Colombia S.A., CO 13999 2541 538 355 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1368 2435 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 22 Telefonica del Peru S.A.A., PE 22884 1061 67 370 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1048 278 33 Techtel LMDS Comunicaciones Interactivas 6503 1023 373 162 Axtel, S.A.B. de C.V., MX 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 29571 1607 102 33 ORANGE-COTE-IVOIRE, CI 36903 1249 554 96 MT-MPLS, MA 36935 770 522 45 Vodafone-, EG 36992 707 1405 195 ETISALAT-MISR, EG 24835 683 633 33 RAYA-AS, EG 37069 594 866 19 MOBINIL, EG 36914 572 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 534 56 53 WANANCHI-, KE 24863 528 388 19 LINKdotNET-AS, EG 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 13517 40952 5221 AMAZON-02, US 8151 12276 3255 575 UNINET, MX 9808 11743 8759 114 CHINAMOBILE-CN China Mobile Communication 12479 7666 1713 148 UNI2-AS, ES 7545 6147 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4787 317 605 CABLEONE, US 9498 4439 535 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4414 347 26 FPT-AS-AP FPT Telecom Company, VN 20940 3934 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 12276 11701 UNINET, MX 9808 11743 11629 CHINAMOBILE-CN China Mobile Communications Grou 12479 7666 7518 UNI2-AS, ES 7545 6147 5525 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4414 4388 FPT-AS-AP FPT Telecom Company, VN 11492 4787 4182 CABLEONE, US 9498 4439 4127 BBIL-AP BHARTI Airtel Ltd., IN 7552 3914 3887 VIETEL-AS-AP Viettel Group, VN 20940 3934 3811 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: 6939 HURRICANE, 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 /12:297 /13:577 /14:1192 /15:2123 /16:13719 /17:8179 /18:13353 /19:24314 /20:43144 /21:51315 /22:110022 /23:102178 /24:611738 /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 6590 7666 UNI2-AS, ES 8151 6498 12276 UNINET, MX 11492 3581 4787 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2492 3342 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2317 13517 AMAZON-02, US 30036 2266 2607 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2196 3509 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) ---------------------------------------------- 1:2404 2:1496 3:819 4:10 5:4739 6:162 7:6 8:1558 9:1 11:172 12:1343 13:446 14:2553 15:363 16:285 17:381 18:894 20:555 21:4 22:188 23:7657 24:2671 25:2 27:2778 29:19 31:3328 32:35 33:1 34:83 35:256 36:3497 37:4569 38:9403 39:908 40:236 41:3989 42:1900 43:2702 44:370 45:18566 46:5071 47:331 49:1887 50:1887 51:588 52:1547 54:320 55:1106 56:11 57:270 58:2211 59:1271 60:1174 61:2829 62:2845 63:1790 64:5510 65:2172 66:4671 67:3078 68:1084 69:3854 70:1043 71:619 72:2848 74:2771 75:1503 76:608 77:2760 78:1893 79:1719 80:2188 81:2068 82:3145 83:1436 84:1818 85:3455 86:1083 87:2132 88:1310 89:4406 90:776 91:8406 92:2743 93:2932 94:4045 95:4387 96:1447 97:310 98:959 99:692 100:72 101:1437 102:3891 103:32831 104:5218 105:743 106:975 107:2639 108:1248 109:4139 110:2251 111:3253 112:2215 113:1847 114:1964 115:2166 116:2077 117:2552 118:2979 119:1924 120:2126 121:1321 122:2783 123:2211 124:1661 125:2904 126:91 128:1563 129:957 130:1279 131:2030 132:772 133:450 134:1572 135:349 136:1337 137:1125 138:2805 139:1588 140:1629 141:1504 142:1894 143:1953 144:1177 145:557 146:2168 147:2097 148:2709 149:2934 150:1244 151:2208 152:2066 153:524 154:7639 155:1776 156:3194 157:1937 158:1337 159:2505 160:3618 161:1848 162:3867 163:2225 164:1867 165:2060 166:1501 167:2006 168:3972 169:777 170:5116 171:1002 172:4433 173:3358 174:919 175:1321 176:3704 177:4736 178:3918 179:2343 180:2732 181:4135 182:3492 183:2243 184:2069 185:21524 186:5188 187:4625 188:4261 189:4350 190:9575 191:1463 192:11286 193:9462 194:7761 195:5546 196:3250 197:3141 198:6051 199:8553 200:8073 201:6379 202:10342 203:10629 204:4558 205:3597 206:4454 207:3496 208:4261 209:5096 210:4559 211:2562 212:4552 213:3774 214:1018 215:46 216:6753 217:3145 218:1358 219:396 220:2142 221:1176 222:713 223:2606 End of report