IPv4 R&E Routing Table Report 23:05 GMT Wed 02 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: 985490 Prefixes after maximum aggregation (per Origin AS): 381822 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 485206 Number of IPv4 prefixes with a valid ROA: 552535 Number of IPv4 prefixes with an invalid ROA: 999 Number of IPv4 prefixes with no ROA: 431956 Total ASes present in the Internet Routing Table: 76814 Prefixes per ASN: 12.83 Origin-only ASes present in the Internet Routing Table: 65825 Origin ASes announcing only one prefix: 26851 Transit ASes present in the Internet Routing Table: 10989 Transit-only ASes present in the Internet Routing Table: 544 Paths with bogon ASNs present in the IPv4 Routing Table: 33 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: 1137 Number of instances of unregistered ASNs: 1176 Number of 32-bit ASNs allocated by the RIRs: 46726 Number of 32-bit ASNs visible in the Routing Table: 38414 Prefixes from 32-bit ASNs in the Routing Table: 205025 Number of bogon 32-bit ASNs visible in the Routing Table: 94 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 457 Number of addresses announced to Internet: 3105445376 Equivalent to 185 /8s, 25 /16s and 86 /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: 321510 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 260994 Total APNIC prefixes after maximum aggregation: 77622 APNIC Deaggregation factor: 3.36 Prefixes being announced from the APNIC address blocks: 251888 Unique aggregates announced from the APNIC address blocks: 104522 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: 4423 APNIC Region transit ASes present in the Internet Routing Table: 1965 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: 10181 Number of APNIC addresses announced to Internet: 748755456 Equivalent to 44 /8s, 161 /16s and 26 /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: 289057 Total ARIN prefixes after maximum aggregation: 131486 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 290348 Unique aggregates announced from the ARIN address blocks: 140429 ARIN Region origin ASes present in the Internet Routing Table: 19196 ARIN Prefixes per ASN: 15.13 ARIN Region origin ASes announcing only one prefix: 7033 ARIN Region transit ASes present in the Internet Routing Table: 1924 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: 5228 Number of ARIN addresses announced to Internet: 1349003264 Equivalent to 80 /8s, 104 /16s and 40 /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: 275345 Total RIPE prefixes after maximum aggregation: 135513 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274286 Unique aggregates announced from the RIPE address blocks: 176828 RIPE Region origin ASes present in the Internet Routing Table: 28896 RIPE Prefixes per ASN: 9.49 RIPE Region origin ASes announcing only one prefix: 12030 RIPE Region transit ASes present in the Internet Routing Table: 3990 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: 12497 Number of RIPE addresses announced to Internet: 731211008 Equivalent to 43 /8s, 149 /16s and 101 /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: 123822 Total LACNIC prefixes after maximum aggregation: 29782 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 120257 Unique aggregates announced from the LACNIC address blocks: 48998 LACNIC Region origin ASes present in the Internet Routing Table: 11275 LACNIC Prefixes per ASN: 10.67 LACNIC Region origin ASes announcing only one prefix: 2675 LACNIC Region transit ASes present in the Internet Routing Table: 2529 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: 9225 Number of LACNIC addresses announced to Internet: 171164928 Equivalent to 10 /8s, 51 /16s and 197 /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: 35135 Total AfriNIC prefixes after maximum aggregation: 6675 AfriNIC Deaggregation factor: 5.26 Prefixes being announced from the AfriNIC address blocks: 48254 Unique aggregates announced from the AfriNIC address blocks: 14016 AfriNIC Region origin ASes present in the Internet Routing Table: 1919 AfriNIC Prefixes per ASN: 25.15 AfriNIC Region origin ASes announcing only one prefix: 690 AfriNIC Region transit ASes present in the Internet Routing Table: 376 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: 105057024 Equivalent to 6 /8s, 67 /16s and 11 /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 6146 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4455 536 314 BBIL-AP BHARTI Airtel Ltd., IN 18403 4363 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3909 1332 26 VIETEL-AS-AP Viettel Group, VN 7713 3697 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3288 1869 103 VNPT-AS-VN VNPT Corp, VN 24560 2901 861 527 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 56046 2424 812 179 CMNET-JIANGSU-AP China Mobile communicati 4755 2183 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 13591 40948 5222 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 8768 858 COGENT-174, US 22773 3339 3032 167 ASN-CXA-ALL-CCI-22773-RDC, US 749 3226 54767 2477 DNIC-AS-00749, US 396982 3191 3854 429 GOOGLE-CLOUD-PLATFORM, US 16625 2959 1242 2205 AKAMAI-AS, US 4155 2845 216 1733 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 7659 1713 148 UNI2-AS, ES 39891 4798 293 63 ALJAWWALSTC-AS, SA 20940 3933 3395 123 AKAMAI-ASN1, NL 9009 3771 350 2103 M247, RO 12389 3118 2305 882 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2401 361 581 TELLCOM-AS, TR 212238 2341 169 1709 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1582 1852 14 TE-AS TE-AS, EG 8551 1430 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 12239 3256 579 UNINET, MX 10620 3507 481 1018 Telmex Colombia S.A., CO 13999 2530 537 360 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 1195 371 22 Telefonica del Peru S.A.A., PE 22884 1062 67 368 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1055 2487 55 TIM SA, BR 11664 1042 278 33 Techtel LMDS Comunicaciones Interactivas 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 1784 604 28 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 1108 1100 18 MOBINIL, EG 36935 939 520 44 Vodafone-, EG 36914 571 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 13591 40948 5222 AMAZON-02, US 8151 12239 3256 579 UNINET, MX 9808 11415 8759 114 CHINAMOBILE-CN China Mobile Communication 12479 7659 1713 148 UNI2-AS, ES 7545 6146 840 622 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 293 63 ALJAWWALSTC-AS, SA 11492 4781 317 604 CABLEONE, US 9498 4455 536 314 BBIL-AP BHARTI Airtel Ltd., IN 18403 4363 347 26 FPT-AS-AP FPT Telecom Company, VN 20940 3933 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 12239 11660 UNINET, MX 9808 11415 11301 CHINAMOBILE-CN China Mobile Communications Grou 12479 7659 7511 UNI2-AS, ES 7545 6146 5524 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4798 4735 ALJAWWALSTC-AS, SA 18403 4363 4337 FPT-AS-AP FPT Telecom Company, VN 11492 4781 4177 CABLEONE, US 9498 4455 4141 BBIL-AP BHARTI Airtel Ltd., IN 7552 3909 3883 VIETEL-AS-AP Viettel Group, VN 20940 3933 3810 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 /12:298 /13:582 /14:1200 /15:2132 /16:13776 /17:8175 /18:13420 /19:24414 /20:43818 /21:51527 /22:111671 /23:102355 /24:611959 /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 6582 7659 UNI2-AS, ES 8151 6448 12239 UNINET, MX 11492 3577 4781 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3431 3636 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2490 3339 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2351 13591 AMAZON-02, US 30036 2264 2605 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2194 3507 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) ---------------------------------------------- 1:2394 2:1502 3:825 4:10 5:4719 6:162 7:6 8:1574 9:1 11:172 12:1345 13:447 14:2542 15:364 16:285 17:380 18:893 20:554 21:4 22:188 23:7602 24:2672 25:2 27:2772 29:19 31:3303 32:35 33:1 34:83 35:256 36:3238 37:4571 38:9332 39:906 40:213 41:4286 42:1882 43:2694 44:373 45:18715 46:5107 47:326 49:1930 50:1888 51:591 52:1554 54:320 55:1098 56:11 57:265 58:2227 59:1291 60:1173 61:2830 62:2923 63:1792 64:5499 65:2173 66:4668 67:3076 68:1089 69:3852 70:1050 71:619 72:2852 74:2773 75:1505 76:609 77:2775 78:1886 79:1736 80:2199 81:2075 82:3166 83:1444 84:1868 85:3454 86:1083 87:2130 88:1310 89:4412 90:778 91:8383 92:2747 93:2939 94:4054 95:4379 96:1441 97:311 98:957 99:691 100:72 101:1424 102:3866 103:32889 104:5201 105:760 106:974 107:2641 108:1253 109:4129 110:2248 111:3234 112:2179 113:1846 114:1988 115:2186 116:2087 117:2550 118:2922 119:1917 120:2101 121:1372 122:2786 123:2212 124:1659 125:2895 126:91 128:1568 129:954 130:1279 131:2028 132:774 133:451 134:1549 135:348 136:1384 137:1116 138:2800 139:1589 140:1620 141:1511 142:1914 143:1944 144:1182 145:555 146:2170 147:2103 148:2708 149:2905 150:1281 151:2163 152:2082 153:524 154:7748 155:1761 156:3168 157:1930 158:1334 159:2502 160:3618 161:1853 162:3873 163:2217 164:1865 165:2035 166:1509 167:1996 168:3955 169:775 170:5119 171:1005 172:4438 173:3358 174:918 175:1318 176:3709 177:4705 178:3898 179:2306 180:2768 181:4097 182:3483 183:2216 184:2070 185:21589 186:5170 187:4574 188:4261 189:4300 190:9521 191:1466 192:11275 193:9468 194:7765 195:5550 196:3295 197:3258 198:6046 199:8561 200:8076 201:6362 202:10357 203:10634 204:4563 205:3597 206:4421 207:3500 208:4254 209:5095 210:4589 211:2558 212:4574 213:3769 214:1015 215:46 216:6754 217:3193 218:1361 219:396 220:2139 221:1162 222:725 223:2558 End of report