IPv4 R&E Routing Table Report 23:05 GMT Thu 10 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: 983595 Prefixes after maximum aggregation (per Origin AS): 381894 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 485589 Number of IPv4 prefixes with a valid ROA: 553418 Number of IPv4 prefixes with an invalid ROA: 641 Number of IPv4 prefixes with no ROA: 429536 Total ASes present in the Internet Routing Table: 76859 Prefixes per ASN: 12.80 Origin-only ASes present in the Internet Routing Table: 65868 Origin ASes announcing only one prefix: 26862 Transit ASes present in the Internet Routing Table: 10991 Transit-only ASes present in the Internet Routing Table: 537 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: 1177 Number of instances of unregistered ASNs: 1214 Number of 32-bit ASNs allocated by the RIRs: 46773 Number of 32-bit ASNs visible in the Routing Table: 38492 Prefixes from 32-bit ASNs in the Routing Table: 205489 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: 468 Number of addresses announced to Internet: 3105697280 Equivalent to 185 /8s, 29 /16s and 46 /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: 321317 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 261255 Total APNIC prefixes after maximum aggregation: 77508 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 252508 Unique aggregates announced from the APNIC address blocks: 104882 APNIC Region origin ASes present in the Internet Routing Table: 14664 APNIC Prefixes per ASN: 17.22 APNIC Region origin ASes announcing only one prefix: 4447 APNIC Region transit ASes present in the Internet Routing Table: 1973 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: 10213 Number of APNIC addresses announced to Internet: 749110016 Equivalent to 44 /8s, 166 /16s and 131 /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: 289147 Total ARIN prefixes after maximum aggregation: 131536 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 291026 Unique aggregates announced from the ARIN address blocks: 140681 ARIN Region origin ASes present in the Internet Routing Table: 19176 ARIN Prefixes per ASN: 15.18 ARIN Region origin ASes announcing only one prefix: 7024 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: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5237 Number of ARIN addresses announced to Internet: 1349123072 Equivalent to 80 /8s, 105 /16s and 252 /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: 275555 Total RIPE prefixes after maximum aggregation: 135618 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 274379 Unique aggregates announced from the RIPE address blocks: 176798 RIPE Region origin ASes present in the Internet Routing Table: 28919 RIPE Prefixes per ASN: 9.49 RIPE Region origin ASes announcing only one prefix: 12040 RIPE Region transit ASes present in the Internet Routing Table: 3998 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: 12528 Number of RIPE addresses announced to Internet: 731370240 Equivalent to 43 /8s, 151 /16s and 211 /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: 124281 Total LACNIC prefixes after maximum aggregation: 29774 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 120648 Unique aggregates announced from the LACNIC address blocks: 49035 LACNIC Region origin ASes present in the Internet Routing Table: 11269 LACNIC Prefixes per ASN: 10.71 LACNIC Region origin ASes announcing only one prefix: 2659 LACNIC Region transit ASes present in the Internet Routing Table: 2522 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: 9229 Number of LACNIC addresses announced to Internet: 171173888 Equivalent to 10 /8s, 51 /16s and 232 /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: 32180 Total AfriNIC prefixes after maximum aggregation: 6677 AfriNIC Deaggregation factor: 4.82 Prefixes being announced from the AfriNIC address blocks: 44566 Unique aggregates announced from the AfriNIC address blocks: 13776 AfriNIC Region origin ASes present in the Internet Routing Table: 1917 AfriNIC Prefixes per ASN: 23.25 AfriNIC Region origin ASes announcing only one prefix: 692 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: 1285 Number of AfriNIC addresses announced to Internet: 104660736 Equivalent to 6 /8s, 60 /16s and 255 /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 4440 535 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4433 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 3915 1332 27 VIETEL-AS-AP Viettel Group, VN 7713 3701 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3288 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 2186 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 13663 40958 5252 AMAZON-02, US 11492 4787 317 605 CABLEONE, US 7155 3857 286 85 VIASAT-SP-BACKBONE, US 6327 3635 1320 82 SHAW, CA 174 3520 8769 847 COGENT-174, US 22773 3338 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 2844 216 1741 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 3765 359 2095 M247, RO 12389 3117 2317 874 ROSTELECOM-AS PJSC Rostelecom. Technical 34984 2402 361 582 TELLCOM-AS, TR 212238 2350 168 1718 CDNEXT, GB 13188 1606 100 34 TRIOLAN, UA 8452 1553 1852 14 TE-AS TE-AS, EG 8551 1428 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 12291 3255 575 UNINET, MX 10620 3510 481 1021 Telmex Colombia S.A., CO 13999 2526 538 352 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 1346 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 24835 1108 633 33 RAYA-AS, EG 36992 857 1431 280 ETISALAT-MISR, EG 36935 772 522 46 Vodafone-, EG 24863 623 389 22 LINKdotNET-AS, EG 37069 600 1112 11 MOBINIL, EG 36914 572 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 13663 40958 5252 AMAZON-02, US 8151 12291 3255 575 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 4787 317 605 CABLEONE, US 9498 4440 535 312 BBIL-AP BHARTI Airtel Ltd., IN 18403 4433 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 12291 11716 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 4433 4407 FPT-AS-AP FPT Telecom Company, VN 11492 4787 4182 CABLEONE, US 9498 4440 4128 BBIL-AP BHARTI Airtel Ltd., IN 7552 3915 3888 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: 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 23.147.224.0/24 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 /16:13718 /17:8163 /18:13350 /19:24320 /20:43242 /21:51326 /22:110491 /23:102289 /24:612341 /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 6513 12291 UNINET, MX 11492 3581 4787 CABLEONE, US 39891 3489 4798 ALJAWWALSTC-AS, SA 6327 3432 3635 SHAW, CA 7155 2816 3857 VIASAT-SP-BACKBONE, US 22773 2488 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2349 13663 AMAZON-02, US 30036 2267 2608 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2197 3510 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) ---------------------------------------------- 1:2408 2:1495 3:848 4:10 5:4743 6:162 7:6 8:1558 9:1 11:172 12:1339 13:457 14:2556 15:366 16:285 17:377 18:896 20:556 21:4 22:188 23:7664 24:2671 25:2 27:2798 29:19 31:3324 32:35 33:1 34:83 35:256 36:3536 37:4579 38:9424 39:908 40:236 41:4050 42:1919 43:2712 44:370 45:18492 46:5075 47:334 49:1888 50:1885 51:592 52:1554 54:324 55:1107 56:10 57:270 58:2211 59:1271 60:1174 61:2828 62:2865 63:1787 64:5516 65:2173 66:4680 67:3088 68:1087 69:3857 70:1042 71:622 72:2850 74:2771 75:1502 76:608 77:2759 78:1894 79:1720 80:2190 81:2067 82:3152 83:1442 84:1854 85:3454 86:1090 87:2126 88:1311 89:4426 90:774 91:8402 92:2744 93:2940 94:4087 95:4380 96:1444 97:309 98:960 99:697 100:72 101:1435 102:3892 103:32842 104:5264 105:777 106:975 107:2634 108:1252 109:4151 110:2246 111:3272 112:2219 113:1851 114:1965 115:2212 116:2078 117:2555 118:2980 119:1930 120:2129 121:1322 122:2780 123:2213 124:1679 125:2907 126:91 128:1574 129:960 130:1283 131:2042 132:779 133:450 134:1573 135:349 136:1426 137:1127 138:2831 139:1585 140:1629 141:1525 142:1896 143:1963 144:1192 145:558 146:2168 147:2100 148:2699 149:2938 150:1245 151:2209 152:2072 153:526 154:7451 155:1823 156:2932 157:1936 158:1344 159:2493 160:3626 161:1851 162:3872 163:2225 164:1868 165:2067 166:1500 167:2020 168:3973 169:777 170:5124 171:1005 172:4410 173:3358 174:917 175:1322 176:3711 177:4712 178:3937 179:2331 180:2734 181:4132 182:3490 183:2255 184:2066 185:21528 186:5240 187:4622 188:4266 189:4308 190:9638 191:1470 192:11290 193:9458 194:7774 195:5569 196:3265 197:3133 198:6061 199:8556 200:8087 201:6369 202:10368 203:10613 204:4567 205:3615 206:4471 207:3491 208:4263 209:5097 210:4556 211:2571 212:4546 213:3779 214:1025 215:46 216:6755 217:3146 218:1359 219:397 220:2142 221:1184 222:711 223:2622 End of report