IPv4 R&E Routing Table Report 23:05 GMT Sun 30 Nov, 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: 1015312 Prefixes after maximum aggregation (per Origin AS): 393158 Deaggregation factor: 2.58 Unique aggregates announced (without unneeded subnets): 503561 Number of IPv4 prefixes with a valid ROA: 592195 Number of IPv4 prefixes with an invalid ROA: 806 Number of IPv4 prefixes with no ROA: 422311 Total ASes present in the Internet Routing Table: 77507 Prefixes per ASN: 13.10 Origin-only ASes present in the Internet Routing Table: 66428 Origin ASes announcing only one prefix: 27106 Transit ASes present in the Internet Routing Table: 11079 Transit-only ASes present in the Internet Routing Table: 549 Paths with bogon ASNs present in the IPv4 Routing Table: 19 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 72 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 981 Number of instances of unregistered ASNs: 1010 Number of 32-bit ASNs allocated by the RIRs: 48107 Number of 32-bit ASNs visible in the Routing Table: 39360 Prefixes from 32-bit ASNs in the Routing Table: 217219 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 445 Number of addresses announced to Internet: 3099804928 Equivalent to 184 /8s, 195 /16s and 69 /24s Percentage of available address space announced: 83.7 Percentage of allocated address space announced: 83.7 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: 332383 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 274345 Total APNIC prefixes after maximum aggregation: 80887 APNIC Deaggregation factor: 3.39 Prefixes being announced from the APNIC address blocks: 262174 Unique aggregates announced from the APNIC address blocks: 106183 APNIC Region origin ASes present in the Internet Routing Table: 14857 APNIC Prefixes per ASN: 17.65 APNIC Region origin ASes announcing only one prefix: 4497 APNIC Region transit ASes present in the Internet Routing Table: 1997 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 38 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10437 Number of APNIC addresses announced to Internet: 753115392 Equivalent to 44 /8s, 227 /16s and 161 /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: 297140 Total ARIN prefixes after maximum aggregation: 134100 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 296853 Unique aggregates announced from the ARIN address blocks: 145508 ARIN Region origin ASes present in the Internet Routing Table: 19357 ARIN Prefixes per ASN: 15.34 ARIN Region origin ASes announcing only one prefix: 7121 ARIN Region transit ASes present in the Internet Routing Table: 1932 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5418 Number of ARIN addresses announced to Internet: 1337355008 Equivalent to 79 /8s, 182 /16s and 107 /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: 281747 Total RIPE prefixes after maximum aggregation: 139840 RIPE Deaggregation factor: 2.01 Prefixes being announced from the RIPE address blocks: 282502 Unique aggregates announced from the RIPE address blocks: 183529 RIPE Region origin ASes present in the Internet Routing Table: 29125 RIPE Prefixes per ASN: 9.70 RIPE Region origin ASes announcing only one prefix: 12098 RIPE Region transit ASes present in the Internet Routing Table: 4034 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12843 Number of RIPE addresses announced to Internet: 735211264 Equivalent to 43 /8s, 210 /16s and 111 /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: 125538 Total LACNIC prefixes after maximum aggregation: 30783 LACNIC Deaggregation factor: 4.08 Prefixes being announced from the LACNIC address blocks: 121522 Unique aggregates announced from the LACNIC address blocks: 49653 LACNIC Region origin ASes present in the Internet Routing Table: 11312 LACNIC Prefixes per ASN: 10.74 LACNIC Region origin ASes announcing only one prefix: 2660 LACNIC Region transit ASes present in the Internet Routing Table: 2547 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9308 Number of LACNIC addresses announced to Internet: 170721792 Equivalent to 10 /8s, 45 /16s and 2 /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: 35561 Total AfriNIC prefixes after maximum aggregation: 6889 AfriNIC Deaggregation factor: 5.16 Prefixes being announced from the AfriNIC address blocks: 51816 Unique aggregates announced from the AfriNIC address blocks: 18309 AfriNIC Region origin ASes present in the Internet Routing Table: 1990 AfriNIC Prefixes per ASN: 26.04 AfriNIC Region origin ASes announcing only one prefix: 730 AfriNIC Region transit ASes present in the Internet Routing Table: 377 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 72 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1354 Number of AfriNIC addresses announced to Internet: 103170816 Equivalent to 6 /8s, 38 /16s and 67 /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 13505 8730 117 CHINAMOBILE-CN China Mobile Communication 7545 6066 832 592 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4581 541 335 BBIL-AP BHARTI Airtel Ltd., IN 18403 4404 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4009 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3711 1044 66 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3334 828 182 CMNET-JIANGSU-AP China Mobile communicati 45899 3319 1869 99 VNPT-AS-VN VNPT Corp, VN 24560 2946 865 501 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2493 273 1925 CHINATELECOM-JIANGSU-SUZHOU-5G-NETWORK CH 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 14225 37206 5384 AMAZON-02, US 22773 4774 3100 367 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 7155 3861 286 85 VIASAT-SP-BACKBONE, US 6327 3691 1320 83 SHAW, CA 396982 3305 4861 483 GOOGLE-CLOUD-PLATFORM, US 749 3217 54766 2468 DNIC-AS-00749, US 16625 2873 1229 2147 AKAMAI-AS, US 36352 2827 231 908 AS-COLOCROSSING, US 174 2694 8766 842 COGENT-174, 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 7295 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 4024 380 2290 M247, RO 20940 3864 3394 124 AKAMAI-ASN1, NL 12389 3145 2317 870 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2536 180 1836 CDNEXT, GB 34984 2419 363 576 TELLCOM-AS, TR 8452 1699 1852 14 TE-AS TE-AS, EG 203020 1610 241 781 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA 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 12671 3301 571 UNINET, MX 10620 3458 463 1101 Telmex Colombia S.A., CO 13999 2509 509 348 Mega Cable, S.A. de C.V., MX 11830 1991 369 65 Instituto Costarricense de Electricidad y 28573 1372 2432 263 Claro NXT Telecomunicacoes Ltda, BR 3816 1348 783 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1264 371 22 Telefonica del Peru S.A.A., PE 22884 1055 67 362 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1014 2486 56 TIM SA, BR 18881 918 1127 31 TELEFONICA BRASIL S.A, 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 1970 630 32 RAYA-AS, EG 36992 1681 1508 399 ETISALAT-MISR, EG 24863 1263 389 20 LINKdotNET-AS, EG 36903 1250 554 97 MT-MPLS, MA 37069 1085 1096 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 36935 1038 520 31 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 558 82 3 KENET-AS, KE 37342 536 32 1 MOVITEL, MZ 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 14225 37206 5384 AMAZON-02, US 9808 13505 8730 117 CHINAMOBILE-CN China Mobile Communication 8151 12671 3301 571 UNINET, MX 12479 7295 1711 149 UNI2-AS, ES 7545 6066 832 592 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4774 3100 367 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 9498 4581 541 335 BBIL-AP BHARTI Airtel Ltd., IN 18403 4404 347 24 FPT-AS-AP FPT Telecom Company, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13505 13388 CHINAMOBILE-CN China Mobile Communications Grou 8151 12671 12100 UNINET, MX 12479 7295 7146 UNI2-AS, ES 7545 6066 5474 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 22773 4774 4407 ASN-CXA-ALL-CCI-22773-RDC, US 18403 4404 4380 FPT-AS-AP FPT Telecom Company, VN 9498 4581 4246 BBIL-AP BHARTI Airtel Ltd., IN 7552 4009 3981 VIETEL-AS-AP Viettel Group, VN 11492 4715 3802 CABLEONE, US 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 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 6461 ZAYO-6461, US 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 54739 UNALLOCATED 8.44.198.0/23 13335 CLOUDFLARENET, US 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174, US 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.135.216.0/24 Origin: 400565 RESERVED, ZZ 23.135.216.0/24 Transit: 3356 LEVEL3, US 23.137.48.0/24 Origin: 16904 ARVIG-16904, US 23.137.48.0/24 Transit: 174 COGENT-174, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 174 COGENT-174, 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 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 /11:94 /12:298 /13:577 /14:1196 /15:2089 /16:13645 /17:8159 /18:13421 /19:24652 /20:44461 /21:51889 /22:112812 /23:104860 /24:637088 /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 8151 6852 12671 UNINET, MX 12479 6232 7295 UNI2-AS, ES 11492 3559 4715 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3691 SHAW, CA 22773 3047 4774 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2434 14225 AMAZON-02, US 30036 2309 2652 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2213 3458 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) ---------------------------------------------- 1:2443 2:1536 3:971 4:10 5:4954 6:190 7:6 8:1501 9:6 11:172 12:1233 13:570 14:2609 15:413 16:303 17:387 18:912 20:587 21:4 22:188 23:8069 24:2555 25:2 27:2782 29:19 31:3392 32:31 33:1 34:84 35:284 36:4595 37:4459 38:9293 39:1188 40:457 41:4450 42:1958 43:2873 44:397 45:19568 46:5089 47:377 49:2152 50:2048 51:597 52:1567 54:288 55:1105 56:11 57:300 58:2319 59:1325 60:1185 61:3082 62:3094 63:1740 64:5957 65:2128 66:5920 67:3236 68:1496 69:4174 70:1030 71:618 72:3020 74:2922 75:1517 76:599 77:2766 78:1918 79:1779 80:2292 81:2094 82:3822 83:1463 84:2017 85:3641 86:1100 87:2140 88:1339 89:4594 90:842 91:8421 92:2837 93:3007 94:4228 95:4557 96:1446 97:311 98:958 99:775 100:67 101:1343 102:4312 103:32647 104:5507 105:777 106:904 107:2805 108:1195 109:4242 110:2301 111:3896 112:2779 113:1916 114:2097 115:2246 116:2154 117:3128 118:3020 119:2074 120:2376 121:1502 122:2946 123:2277 124:1670 125:2924 126:125 128:1579 129:959 130:1496 131:2238 132:766 133:462 134:1608 135:395 136:1498 137:1136 138:2875 139:1595 140:1725 141:1548 142:2317 143:2126 144:1337 145:633 146:2179 147:2163 148:2789 149:2881 150:1313 151:2641 152:2276 153:623 154:9222 155:2249 156:4111 157:2212 158:1450 159:2673 160:3665 161:1990 162:3992 163:2325 164:1962 165:2599 166:1309 167:2136 168:3884 169:787 170:5450 171:1116 172:4472 173:3414 174:906 175:1354 176:3772 177:4716 178:4306 179:2295 180:2954 181:4315 182:3837 183:2603 184:2029 185:21677 186:5495 187:4765 188:4444 189:4494 190:9714 191:1552 192:11409 193:9492 194:7860 195:5608 196:3260 197:3300 198:6060 199:6090 200:8091 201:6384 202:10442 203:10488 204:4610 205:3653 206:4367 207:3752 208:4240 209:5396 210:4716 211:2675 212:4892 213:4000 214:1043 215:52 216:7112 217:3351 218:1584 219:410 220:2200 221:1280 222:766 223:3176 End of report