IPv4 R&E Routing Table Report 23:05 GMT Sun 08 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: 982125 Prefixes after maximum aggregation (per Origin AS): 379405 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 482278 Number of IPv4 prefixes with a valid ROA: 547320 Number of IPv4 prefixes with an invalid ROA: 676 Number of IPv4 prefixes with no ROA: 434129 Total ASes present in the Internet Routing Table: 76794 Prefixes per ASN: 12.79 Origin-only ASes present in the Internet Routing Table: 65852 Origin ASes announcing only one prefix: 26906 Transit ASes present in the Internet Routing Table: 10942 Transit-only ASes present in the Internet Routing Table: 544 Paths with bogon ASNs present in the IPv4 Routing Table: 28 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 73 Max AS path prepend of ASN ( 37447) 57 Prefixes from unregistered ASNs in the Routing Table: 1037 Number of instances of unregistered ASNs: 1069 Number of 32-bit ASNs allocated by the RIRs: 46629 Number of 32-bit ASNs visible in the Routing Table: 38300 Prefixes from 32-bit ASNs in the Routing Table: 203424 Number of bogon 32-bit ASNs visible in the Routing Table: 82 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 434 Number of addresses announced to Internet: 3110176512 Equivalent to 185 /8s, 97 /16s and 135 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 321153 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 258409 Total APNIC prefixes after maximum aggregation: 77128 APNIC Deaggregation factor: 3.35 Prefixes being announced from the APNIC address blocks: 249864 Unique aggregates announced from the APNIC address blocks: 104286 APNIC Region origin ASes present in the Internet Routing Table: 14580 APNIC Prefixes per ASN: 17.14 APNIC Region origin ASes announcing only one prefix: 4428 APNIC Region transit ASes present in the Internet Routing Table: 1952 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: 10123 Number of APNIC addresses announced to Internet: 748684288 Equivalent to 44 /8s, 160 /16s and 4 /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: 288821 Total ARIN prefixes after maximum aggregation: 130895 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 290543 Unique aggregates announced from the ARIN address blocks: 139647 ARIN Region origin ASes present in the Internet Routing Table: 19213 ARIN Prefixes per ASN: 15.12 ARIN Region origin ASes announcing only one prefix: 7045 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: 5218 Number of ARIN addresses announced to Internet: 1353172480 Equivalent to 80 /8s, 167 /16s and 198 /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: 274380 Total RIPE prefixes after maximum aggregation: 134512 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 272928 Unique aggregates announced from the RIPE address blocks: 175356 RIPE Region origin ASes present in the Internet Routing Table: 28934 RIPE Prefixes per ASN: 9.43 RIPE Region origin ASes announcing only one prefix: 12069 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: 12473 Number of RIPE addresses announced to Internet: 731288320 Equivalent to 43 /8s, 150 /16s and 147 /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: 123985 Total LACNIC prefixes after maximum aggregation: 29523 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 120323 Unique aggregates announced from the LACNIC address blocks: 49031 LACNIC Region origin ASes present in the Internet Routing Table: 11251 LACNIC Prefixes per ASN: 10.69 LACNIC Region origin ASes announcing only one prefix: 2673 LACNIC Region transit ASes present in the Internet Routing Table: 2511 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 71 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9206 Number of LACNIC addresses announced to Internet: 171904768 Equivalent to 10 /8s, 63 /16s and 15 /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: 35493 Total AfriNIC prefixes after maximum aggregation: 6714 AfriNIC Deaggregation factor: 5.29 Prefixes being announced from the AfriNIC address blocks: 48033 Unique aggregates announced from the AfriNIC address blocks: 13569 AfriNIC Region origin ASes present in the Internet Routing Table: 1914 AfriNIC Prefixes per ASN: 25.10 AfriNIC Region origin ASes announcing only one prefix: 691 AfriNIC Region transit ASes present in the Internet Routing Table: 373 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1280 Number of AfriNIC addresses announced to Internet: 104926464 Equivalent to 6 /8s, 65 /16s and 13 /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 11065 8756 97 CHINAMOBILE-CN China Mobile Communication 7545 6179 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4449 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4379 534 304 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3695 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3274 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2881 854 529 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2177 434 193 TATACOMM-AS TATA Communications formerly 45090 2173 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer 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 13622 40953 5218 AMAZON-02, US 11492 4760 316 593 CABLEONE, US 7155 3863 286 85 VIASAT-SP-BACKBONE, US 6327 3631 1320 81 SHAW, CA 174 3474 8746 890 COGENT-174, US 22773 3350 3033 169 ASN-CXA-ALL-CCI-22773-RDC, US 749 3229 54783 2480 DNIC-AS-00749, US 396982 3183 3854 425 GOOGLE-CLOUD-PLATFORM, US 16625 2999 1250 2221 AKAMAI-AS, US 36352 2815 230 855 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 7684 1714 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3928 3395 123 AKAMAI-ASN1, NL 9009 3876 353 2078 M247, RO 12389 3108 2306 887 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2391 360 580 TELLCOM-AS, TR 212238 2248 163 1639 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1574 1852 14 TE-AS TE-AS, EG 62240 1413 94 737 CLOUVIDER Clouvider - Global ASN, GB 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 12182 3255 582 UNINET, MX 10620 3499 480 1017 Telmex Colombia S.A., CO 13999 2548 540 363 Mega Cable, S.A. de C.V., MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 28573 1371 2436 266 Claro NXT Telecomunicacoes Ltda, BR 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1198 371 22 Telefonica del Peru S.A.A., PE 11664 1195 278 33 Techtel LMDS Comunicaciones Interactivas 22884 1061 67 374 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 6503 1038 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 24835 1780 644 27 RAYA-AS, EG 24863 1634 389 17 LINKdotNET-AS, EG 29571 1614 102 33 ORANGE-COTE-IVOIRE, CI 36992 1431 1519 280 ETISALAT-MISR, EG 36903 1247 553 104 MT-MPLS, MA 37069 1107 1100 18 MOBINIL, EG 36935 1066 523 47 Vodafone-, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36914 552 82 3 KENET-AS, KE 15399 532 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 13622 40953 5218 AMAZON-02, US 8151 12182 3255 582 UNINET, MX 9808 11065 8756 97 CHINAMOBILE-CN China Mobile Communication 12479 7684 1714 148 UNI2-AS, ES 7545 6179 844 649 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4760 316 593 CABLEONE, US 18403 4449 347 25 FPT-AS-AP FPT Telecom Company, VN 9498 4379 534 304 BBIL-AP BHARTI Airtel Ltd., IN 20940 3928 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 12182 11600 UNINET, MX 9808 11065 10968 CHINAMOBILE-CN China Mobile Communications Grou 12479 7684 7536 UNI2-AS, ES 7545 6179 5530 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4449 4424 FPT-AS-AP FPT Telecom Company, VN 11492 4760 4167 CABLEONE, US 9498 4379 4075 BBIL-AP BHARTI Airtel Ltd., IN 7552 3923 3897 VIETEL-AS-AP Viettel Group, VN 20940 3928 3805 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 23.147.240.0/24 Origin: 32302 RESERVED, ZZ 23.147.240.0/24 Transit: 32787 PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NE 23.155.208.0/24 Origin: 396169 AS-GHCIL-01, US 23.155.208.0/24 Transit: 35985 ONERINGNET-ATL-1, 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 /12:299 /13:581 /14:1211 /15:2139 /16:13860 /17:8210 /18:13616 /19:24461 /20:43872 /21:51463 /22:111646 /23:102026 /24:608578 /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 6603 7684 UNI2-AS, ES 8151 6383 12182 UNINET, MX 11492 3557 4760 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3427 3631 SHAW, CA 7155 2822 3863 VIASAT-SP-BACKBONE, US 22773 2498 3350 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2378 13622 AMAZON-02, US 30036 2243 2584 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2186 3499 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) ---------------------------------------------- 1:2380 2:1485 3:810 4:9 5:4714 6:162 7:6 8:1575 9:1 11:172 12:1353 13:434 14:2521 15:360 16:285 17:376 18:920 20:544 21:4 22:188 23:7550 24:2749 25:2 27:2768 29:19 31:3273 32:36 33:1 34:83 35:254 36:3071 37:4596 38:9243 39:909 40:172 41:4196 42:1968 43:2635 44:376 45:18552 46:5099 47:318 49:1937 50:1883 51:591 52:1567 54:322 55:1092 56:11 57:260 58:2204 59:1268 60:1171 61:2827 62:2931 63:1795 64:5445 65:2175 66:4605 67:3049 68:1122 69:3845 70:1075 71:627 72:2836 74:2783 75:1507 76:616 77:2714 78:1888 79:1710 80:2221 81:2049 82:3120 83:1446 84:1861 85:3441 86:1077 87:2134 88:1294 89:4398 90:770 91:8379 92:2707 93:2914 94:4043 95:4337 96:1417 97:311 98:980 99:697 100:73 101:1407 102:3848 103:32650 104:5092 105:761 106:1035 107:2656 108:1246 109:4074 110:2252 111:3276 112:2129 113:1813 114:1985 115:2100 116:2074 117:2525 118:2880 119:1923 120:1971 121:1374 122:2767 123:2175 124:1630 125:2888 126:91 128:1569 129:960 130:1295 131:1982 132:773 133:449 134:1540 135:334 136:1350 137:1122 138:2845 139:1592 140:1595 141:1505 142:1900 143:1798 144:1136 145:527 146:2175 147:2115 148:2714 149:2891 150:1268 151:1941 152:2079 153:521 154:7451 155:1735 156:3010 157:1920 158:1325 159:2487 160:3598 161:1849 162:3801 163:2186 164:1865 165:2224 166:1490 167:1942 168:3993 169:787 170:5116 171:993 172:4435 173:3315 174:916 175:1304 176:3704 177:4681 178:3702 179:2299 180:2752 181:4091 182:3447 183:2171 184:2056 185:21562 186:5154 187:4506 188:4246 189:4286 190:9581 191:1476 192:11271 193:9472 194:7803 195:5539 196:3263 197:3662 198:6065 199:8533 200:8076 201:6354 202:10256 203:10639 204:4541 205:3605 206:4452 207:3496 208:4226 209:5124 210:4546 211:2533 212:4565 213:3721 214:1025 215:46 216:6750 217:3139 218:1354 219:385 220:2090 221:1123 222:722 223:2454 End of report