IPv4 R&E Routing Table Report 23:05 GMT Fri 27 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: 985381 Prefixes after maximum aggregation (per Origin AS): 381380 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 484192 Number of IPv4 prefixes with a valid ROA: 551206 Number of IPv4 prefixes with an invalid ROA: 989 Number of IPv4 prefixes with no ROA: 433186 Total ASes present in the Internet Routing Table: 76830 Prefixes per ASN: 12.83 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: 10973 Transit-only ASes present in the Internet Routing Table: 534 Paths with bogon ASNs present in the IPv4 Routing Table: 35 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: 1148 Number of instances of unregistered ASNs: 1185 Number of 32-bit ASNs allocated by the RIRs: 46662 Number of 32-bit ASNs visible in the Routing Table: 38415 Prefixes from 32-bit ASNs in the Routing Table: 205413 Number of bogon 32-bit ASNs visible in the Routing Table: 98 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 436 Number of addresses announced to Internet: 3105615872 Equivalent to 185 /8s, 27 /16s and 240 /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: 321274 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 261128 Total APNIC prefixes after maximum aggregation: 77653 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 251869 Unique aggregates announced from the APNIC address blocks: 104476 APNIC Region origin ASes present in the Internet Routing Table: 14626 APNIC Prefixes per ASN: 17.22 APNIC Region origin ASes announcing only one prefix: 4431 APNIC Region transit ASes present in the Internet Routing Table: 1966 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10174 Number of APNIC addresses announced to Internet: 748752384 Equivalent to 44 /8s, 161 /16s and 14 /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: 288831 Total ARIN prefixes after maximum aggregation: 131196 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290312 Unique aggregates announced from the ARIN address blocks: 139814 ARIN Region origin ASes present in the Internet Routing Table: 19195 ARIN Prefixes per ASN: 15.12 ARIN Region origin ASes announcing only one prefix: 7034 ARIN Region transit ASes present in the Internet Routing Table: 1926 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: 5233 Number of ARIN addresses announced to Internet: 1349224704 Equivalent to 80 /8s, 107 /16s and 137 /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: 275274 Total RIPE prefixes after maximum aggregation: 135426 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274042 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: 12057 RIPE Region transit ASes present in the Internet Routing Table: 3989 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: 12509 Number of RIPE addresses announced to Internet: 731234560 Equivalent to 43 /8s, 149 /16s and 193 /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: 123844 Total LACNIC prefixes after maximum aggregation: 29713 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 120342 Unique aggregates announced from the LACNIC address blocks: 48930 LACNIC Region origin ASes present in the Internet Routing Table: 11271 LACNIC Prefixes per ASN: 10.68 LACNIC Region origin ASes announcing only one prefix: 2672 LACNIC Region transit ASes present in the Internet Routing Table: 2509 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: 9216 Number of LACNIC addresses announced to Internet: 171229184 Equivalent to 10 /8s, 52 /16s and 192 /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: 35156 Total AfriNIC prefixes after maximum aggregation: 6635 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 48380 Unique aggregates announced from the AfriNIC address blocks: 13931 AfriNIC Region origin ASes present in the Internet Routing Table: 1917 AfriNIC Prefixes per ASN: 25.24 AfriNIC Region origin ASes announcing only one prefix: 687 AfriNIC Region transit ASes present in the Internet Routing Table: 372 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: 104926976 Equivalent to 6 /8s, 65 /16s and 15 /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 11415 8759 114 CHINAMOBILE-CN China Mobile Communication 7545 6151 841 651 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4440 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 3286 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2896 857 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2290 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 13563 40952 5203 AMAZON-02, US 11492 4774 316 625 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3636 1320 82 SHAW, CA 174 3512 8758 851 COGENT-174, US 22773 3352 3032 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 396982 3193 3854 430 GOOGLE-CLOUD-PLATFORM, US 16625 2963 1243 2209 AKAMAI-AS, US 4155 2833 215 1717 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 7671 1713 148 UNI2-AS, ES 39891 4538 281 67 ALJAWWALSTC-AS, SA 20940 3932 3395 123 AKAMAI-ASN1, NL 9009 3906 359 2108 M247, RO 12389 3117 2305 886 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2400 361 580 TELLCOM-AS, TR 212238 2329 171 1707 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1575 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 12232 3256 574 UNINET, MX 10620 3506 481 1018 Telmex Colombia S.A., CO 13999 2537 538 355 Mega Cable, S.A. de C.V., MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 28573 1370 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1344 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1197 371 22 Telefonica del Peru S.A.A., PE 11664 1065 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1062 67 368 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1054 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 1621 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 573 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 15399 534 56 53 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 13563 40952 5203 AMAZON-02, US 8151 12232 3256 574 UNINET, MX 9808 11415 8759 114 CHINAMOBILE-CN China Mobile Communication 12479 7671 1713 148 UNI2-AS, ES 7545 6151 841 651 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4774 316 625 CABLEONE, US 39891 4538 281 67 ALJAWWALSTC-AS, SA 9498 4440 535 311 BBIL-AP BHARTI Airtel Ltd., IN 18403 4368 347 26 FPT-AS-AP FPT Telecom Company, VN 20940 3932 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 12232 11658 UNINET, MX 9808 11415 11301 CHINAMOBILE-CN China Mobile Communications Grou 12479 7671 7523 UNI2-AS, ES 7545 6151 5500 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4538 4471 ALJAWWALSTC-AS, SA 18403 4368 4342 FPT-AS-AP FPT Telecom Company, VN 11492 4774 4149 CABLEONE, US 9498 4440 4129 BBIL-AP BHARTI Airtel Ltd., IN 7552 3918 3892 VIETEL-AS-AP Viettel Group, VN 20940 3932 3809 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 /15:2130 /16:13780 /17:8183 /18:13422 /19:24401 /20:43818 /21:51543 /22:111753 /23:102360 /24:611747 /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 7671 UNI2-AS, ES 8151 6443 12232 UNINET, MX 11492 3573 4774 CABLEONE, US 6327 3431 3636 SHAW, CA 39891 3249 4538 ALJAWWALSTC-AS, SA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2502 3352 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2339 13563 AMAZON-02, US 30036 2259 2600 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2193 3506 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) ---------------------------------------------- 1:2387 2:1499 3:816 4:10 5:4751 6:161 7:6 8:1566 9:1 11:172 12:1343 13:441 14:2534 15:365 16:283 17:378 18:919 20:554 21:4 22:188 23:7591 24:2666 25:2 27:2772 29:19 31:3312 32:35 33:1 34:83 35:255 36:3196 37:4573 38:9352 39:906 40:206 41:4259 42:1889 43:2690 44:372 45:18722 46:5109 47:323 49:1929 50:1884 51:593 52:1556 54:324 55:1104 56:11 57:268 58:2233 59:1294 60:1172 61:2831 62:2926 63:1783 64:5479 65:2167 66:4651 67:3065 68:1084 69:3834 70:1050 71:621 72:2846 74:2778 75:1506 76:608 77:2767 78:1727 79:1726 80:2207 81:2068 82:3173 83:1453 84:1868 85:3452 86:1091 87:2127 88:1309 89:4407 90:777 91:8387 92:2736 93:2932 94:4043 95:4398 96:1431 97:310 98:959 99:688 100:72 101:1420 102:3876 103:32974 104:5217 105:765 106:975 107:2649 108:1248 109:4112 110:2246 111:3283 112:2141 113:1854 114:1999 115:2188 116:2084 117:2541 118:2931 119:1916 120:2087 121:1374 122:2784 123:2208 124:1635 125:2913 126:91 128:1573 129:946 130:1282 131:2045 132:772 133:451 134:1553 135:350 136:1348 137:1116 138:2810 139:1587 140:1621 141:1512 142:1914 143:1930 144:1182 145:559 146:2170 147:2111 148:2713 149:2930 150:1284 151:2114 152:2078 153:524 154:7859 155:1762 156:3136 157:1927 158:1335 159:2497 160:3611 161:1855 162:3873 163:2221 164:1863 165:2032 166:1512 167:1991 168:3948 169:778 170:5133 171:1007 172:4449 173:3353 174:917 175:1325 176:3706 177:4713 178:3891 179:2316 180:2767 181:4081 182:3463 183:2221 184:2065 185:21593 186:5165 187:4578 188:4263 189:4322 190:9584 191:1488 192:11281 193:9471 194:7814 195:5539 196:3262 197:3189 198:6058 199:8550 200:8076 201:6388 202:10324 203:10652 204:4561 205:3591 206:4416 207:3470 208:4258 209:5110 210:4567 211:2540 212:4568 213:3764 214:1014 215:46 216:6737 217:3198 218:1360 219:395 220:2138 221:1154 222:724 223:2530 End of report