IPv4 R&E Routing Table Report 23:05 GMT Fri 11 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: 984031 Prefixes after maximum aggregation (per Origin AS): 382234 Deaggregation factor: 2.57 Unique aggregates announced (without unneeded subnets): 485904 Number of IPv4 prefixes with a valid ROA: 553980 Number of IPv4 prefixes with an invalid ROA: 650 Number of IPv4 prefixes with no ROA: 429401 Total ASes present in the Internet Routing Table: 76877 Prefixes per ASN: 12.80 Origin-only ASes present in the Internet Routing Table: 65883 Origin ASes announcing only one prefix: 26876 Transit ASes present in the Internet Routing Table: 10994 Transit-only ASes present in the Internet Routing Table: 545 Paths with bogon ASNs present in the IPv4 Routing Table: 31 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: 1207 Number of 32-bit ASNs allocated by the RIRs: 46790 Number of 32-bit ASNs visible in the Routing Table: 38501 Prefixes from 32-bit ASNs in the Routing Table: 205558 Number of bogon 32-bit ASNs visible in the Routing Table: 90 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 436 Number of addresses announced to Internet: 3105764608 Equivalent to 185 /8s, 30 /16s and 53 /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: 321410 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 261703 Total APNIC prefixes after maximum aggregation: 77715 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 252497 Unique aggregates announced from the APNIC address blocks: 104880 APNIC Region origin ASes present in the Internet Routing Table: 14665 APNIC Prefixes per ASN: 17.22 APNIC Region origin ASes announcing only one prefix: 4454 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: 10214 Number of APNIC addresses announced to Internet: 749086976 Equivalent to 44 /8s, 166 /16s and 41 /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: 289205 Total ARIN prefixes after maximum aggregation: 131572 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 291088 Unique aggregates announced from the ARIN address blocks: 140800 ARIN Region origin ASes present in the Internet Routing Table: 19178 ARIN Prefixes per ASN: 15.18 ARIN Region origin ASes announcing only one prefix: 7030 ARIN Region transit ASes present in the Internet Routing Table: 1919 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 71 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5239 Number of ARIN addresses announced to Internet: 1349212160 Equivalent to 80 /8s, 107 /16s and 88 /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: 275624 Total RIPE prefixes after maximum aggregation: 135657 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274586 Unique aggregates announced from the RIPE address blocks: 176895 RIPE Region origin ASes present in the Internet Routing Table: 28929 RIPE Prefixes per ASN: 9.49 RIPE Region origin ASes announcing only one prefix: 12046 RIPE Region transit ASes present in the Internet Routing Table: 3996 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: 12534 Number of RIPE addresses announced to Internet: 731404544 Equivalent to 43 /8s, 152 /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: 124155 Total LACNIC prefixes after maximum aggregation: 29825 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 120504 Unique aggregates announced from the LACNIC address blocks: 49053 LACNIC Region origin ASes present in the Internet Routing Table: 11270 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2657 LACNIC Region transit ASes present in the Internet Routing Table: 2523 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: 9230 Number of LACNIC addresses announced to Internet: 171113472 Equivalent to 10 /8s, 50 /16s and 252 /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: 32174 Total AfriNIC prefixes after maximum aggregation: 6690 AfriNIC Deaggregation factor: 4.81 Prefixes being announced from the AfriNIC address blocks: 44920 Unique aggregates announced from the AfriNIC address blocks: 13891 AfriNIC Region origin ASes present in the Internet Routing Table: 1918 AfriNIC Prefixes per ASN: 23.42 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: 5.4 Max AfriNIC Region AS path length visible: 79 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1284 Number of AfriNIC addresses announced to Internet: 104696576 Equivalent to 6 /8s, 61 /16s and 139 /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 11755 8762 116 CHINAMOBILE-CN China Mobile Communication 7545 6146 840 621 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4442 535 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4429 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3911 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 2902 862 519 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2653 812 178 CMNET-JIANGSU-AP China Mobile communicati 4755 2187 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 13653 40958 5249 AMAZON-02, US 11492 4788 317 606 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3518 8769 846 COGENT-174, US 22773 3339 3034 168 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 396982 3195 3854 432 GOOGLE-CLOUD-PLATFORM, US 16625 2957 1245 2205 AKAMAI-AS, US 4155 2848 216 1732 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 7638 1713 150 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3941 3395 123 AKAMAI-ASN1, NL 9009 3775 360 2105 M247, RO 12389 3118 2317 874 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2400 361 580 TELLCOM-AS, TR 212238 2349 168 1716 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1553 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 12294 3255 574 UNINET, MX 10620 3513 481 1023 Telmex Colombia S.A., CO 13999 2530 538 352 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1367 2435 268 Claro NXT Telecomunicacoes Ltda, BR 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1197 371 22 Telefonica del Peru S.A.A., PE 22884 1051 67 377 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 11664 1046 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 24835 1187 633 33 RAYA-AS, EG 36992 913 1440 307 ETISALAT-MISR, EG 36935 752 520 39 Vodafone-, EG 37069 583 1112 11 MOBINIL, EG 36914 569 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 534 56 53 WANANCHI-, KE 3741 519 661 316 IS, ZA 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 13653 40958 5249 AMAZON-02, US 8151 12294 3255 574 UNINET, MX 9808 11755 8762 116 CHINAMOBILE-CN China Mobile Communication 12479 7638 1713 150 UNI2-AS, ES 7545 6146 840 621 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4788 317 606 CABLEONE, US 9498 4442 535 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4429 347 26 FPT-AS-AP FPT Telecom Company, VN 20940 3941 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 12294 11720 UNINET, MX 9808 11755 11639 CHINAMOBILE-CN China Mobile Communications Grou 12479 7638 7488 UNI2-AS, ES 7545 6146 5525 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4429 4403 FPT-AS-AP FPT Telecom Company, VN 11492 4788 4182 CABLEONE, US 9498 4442 4130 BBIL-AP BHARTI Airtel Ltd., IN 7552 3911 3884 VIETEL-AS-AP Viettel Group, VN 20940 3941 3818 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 398074 UNALLOCATED 8.28.115.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 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 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, 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 /12:298 /13:577 /14:1193 /15:2124 /16:13720 /17:8161 /18:13343 /19:24318 /20:43282 /21:51333 /22:110422 /23:102294 /24:612803 /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 6571 7638 UNI2-AS, ES 8151 6517 12294 UNINET, MX 11492 3582 4788 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3433 3636 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2489 3339 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2343 13653 AMAZON-02, US 30036 2265 2606 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2200 3513 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) ---------------------------------------------- 1:2406 2:1497 3:851 4:10 5:4753 6:162 7:6 8:1558 9:1 11:172 12:1341 13:457 14:2555 15:366 16:285 17:377 18:896 20:556 21:4 22:188 23:7672 24:2671 25:2 27:2791 29:19 31:3330 32:35 33:1 34:83 35:256 36:3536 37:4578 38:9438 39:908 40:251 41:4113 42:1918 43:2715 44:370 45:18567 46:5074 47:335 49:1889 50:1889 51:592 52:1553 54:324 55:1108 56:11 57:270 58:2211 59:1271 60:1174 61:2827 62:2879 63:1791 64:5515 65:2170 66:4684 67:3090 68:1089 69:3860 70:1041 71:621 72:2848 74:2775 75:1503 76:608 77:2760 78:1898 79:1714 80:2192 81:2068 82:3148 83:1444 84:1857 85:3454 86:1086 87:2129 88:1311 89:4425 90:774 91:8410 92:2751 93:2937 94:4101 95:4382 96:1445 97:310 98:962 99:697 100:72 101:1437 102:3875 103:32835 104:5264 105:770 106:975 107:2638 108:1251 109:4158 110:2244 111:3273 112:2217 113:1849 114:1955 115:2211 116:2079 117:2555 118:2976 119:1929 120:2129 121:1323 122:2780 123:2211 124:1677 125:2904 126:91 128:1574 129:960 130:1281 131:2045 132:771 133:450 134:1574 135:349 136:1429 137:1127 138:2827 139:1587 140:1619 141:1527 142:1915 143:1953 144:1191 145:560 146:2169 147:2101 148:2701 149:2934 150:1236 151:2211 152:2072 153:525 154:7640 155:1813 156:3030 157:1937 158:1342 159:2493 160:3631 161:1849 162:3875 163:2227 164:1872 165:2071 166:1508 167:2019 168:3974 169:777 170:5125 171:1004 172:4417 173:3356 174:917 175:1322 176:3706 177:4724 178:3948 179:2309 180:2738 181:4111 182:3492 183:2263 184:2067 185:21541 186:5226 187:4609 188:4267 189:4321 190:9549 191:1479 192:11290 193:9463 194:7780 195:5569 196:3262 197:3131 198:6060 199:8565 200:8099 201:6371 202:10366 203:10611 204:4572 205:3613 206:4469 207:3499 208:4262 209:5099 210:4554 211:2572 212:4548 213:3777 214:1023 215:46 216:6758 217:3161 218:1359 219:397 220:2142 221:1184 222:711 223:2623 End of report