IPv4 R&E Routing Table Report 23:05 GMT Tue 09 Dec, 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: 1017374 Prefixes after maximum aggregation (per Origin AS): 392855 Deaggregation factor: 2.59 Unique aggregates announced (without unneeded subnets): 504394 Number of IPv4 prefixes with a valid ROA: 601013 Number of IPv4 prefixes with an invalid ROA: 696 Number of IPv4 prefixes with no ROA: 415665 Total ASes present in the Internet Routing Table: 77520 Prefixes per ASN: 13.12 Origin-only ASes present in the Internet Routing Table: 66467 Origin ASes announcing only one prefix: 27101 Transit ASes present in the Internet Routing Table: 11053 Transit-only ASes present in the Internet Routing Table: 558 Paths with bogon ASNs present in the IPv4 Routing Table: 18 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 89 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 960 Number of instances of unregistered ASNs: 989 Number of 32-bit ASNs allocated by the RIRs: 48170 Number of 32-bit ASNs visible in the Routing Table: 39407 Prefixes from 32-bit ASNs in the Routing Table: 218638 Number of bogon 32-bit ASNs visible in the Routing Table: 72 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 437 Number of addresses announced to Internet: 3099479808 Equivalent to 184 /8s, 190 /16s and 79 /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: 332425 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 275444 Total APNIC prefixes after maximum aggregation: 80521 APNIC Deaggregation factor: 3.42 Prefixes being announced from the APNIC address blocks: 262648 Unique aggregates announced from the APNIC address blocks: 106153 APNIC Region origin ASes present in the Internet Routing Table: 14873 APNIC Prefixes per ASN: 17.66 APNIC Region origin ASes announcing only one prefix: 4524 APNIC Region transit ASes present in the Internet Routing Table: 1995 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: 10460 Number of APNIC addresses announced to Internet: 752960000 Equivalent to 44 /8s, 225 /16s and 66 /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: 297521 Total ARIN prefixes after maximum aggregation: 134384 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 297587 Unique aggregates announced from the ARIN address blocks: 145650 ARIN Region origin ASes present in the Internet Routing Table: 19352 ARIN Prefixes per ASN: 15.38 ARIN Region origin ASes announcing only one prefix: 7097 ARIN Region transit ASes present in the Internet Routing Table: 1913 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: 5420 Number of ARIN addresses announced to Internet: 1337029632 Equivalent to 79 /8s, 177 /16s and 116 /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: 281839 Total RIPE prefixes after maximum aggregation: 139844 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 282935 Unique aggregates announced from the RIPE address blocks: 183780 RIPE Region origin ASes present in the Internet Routing Table: 29111 RIPE Prefixes per ASN: 9.72 RIPE Region origin ASes announcing only one prefix: 12075 RIPE Region transit ASes present in the Internet Routing Table: 4048 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12852 Number of RIPE addresses announced to Internet: 735661056 Equivalent to 43 /8s, 217 /16s and 76 /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: 125665 Total LACNIC prefixes after maximum aggregation: 30508 LACNIC Deaggregation factor: 4.12 Prefixes being announced from the LACNIC address blocks: 121596 Unique aggregates announced from the LACNIC address blocks: 49727 LACNIC Region origin ASes present in the Internet Routing Table: 11316 LACNIC Prefixes per ASN: 10.75 LACNIC Region origin ASes announcing only one prefix: 2669 LACNIC Region transit ASes present in the Internet Routing Table: 2533 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: 9315 Number of LACNIC addresses announced to Internet: 170671360 Equivalent to 10 /8s, 44 /16s and 61 /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: 35945 Total AfriNIC prefixes after maximum aggregation: 6943 AfriNIC Deaggregation factor: 5.18 Prefixes being announced from the AfriNIC address blocks: 52171 Unique aggregates announced from the AfriNIC address blocks: 18706 AfriNIC Region origin ASes present in the Internet Routing Table: 1997 AfriNIC Prefixes per ASN: 26.12 AfriNIC Region origin ASes announcing only one prefix: 736 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: 89 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1360 Number of AfriNIC addresses announced to Internet: 102929152 Equivalent to 6 /8s, 34 /16s and 147 /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 13282 8729 118 CHINAMOBILE-CN China Mobile Communication 7545 6038 834 586 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4625 347 24 FPT-AS-AP FPT Telecom Company, VN 9498 4602 541 336 BBIL-AP BHARTI Airtel Ltd., IN 7552 4014 1332 28 VIETEL-AS-AP Viettel Group, VN 7713 3721 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3340 828 182 CMNET-JIANGSU-AP China Mobile communicati 45899 3320 1869 99 VNPT-AS-VN VNPT Corp, VN 24560 2952 865 498 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 140292 2511 274 1936 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 14180 37205 5387 AMAZON-02, US 22773 4778 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 3315 4862 489 GOOGLE-CLOUD-PLATFORM, US 749 3208 54760 2459 DNIC-AS-00749, US 16625 2874 1231 2152 AKAMAI-AS, US 36352 2821 229 906 AS-COLOCROSSING, US 174 2708 8771 859 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 7279 1711 149 UNI2-AS, ES 39891 4833 298 66 ALJAWWALSTC-AS, SA 9009 3977 372 2276 M247, RO 20940 3850 3394 121 AKAMAI-ASN1, NL 12389 3150 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2541 181 1841 CDNEXT, GB 34984 2423 363 576 TELLCOM-AS, TR 8452 1685 1852 14 TE-AS TE-AS, EG 203020 1614 241 784 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 12661 3293 584 UNINET, MX 10620 3457 463 1100 Telmex Colombia S.A., CO 13999 2509 509 352 Mega Cable, S.A. de C.V., MX 11830 1992 369 65 Instituto Costarricense de Electricidad y 28573 1373 2431 267 Claro NXT Telecomunicacoes Ltda, BR 11664 1348 278 33 Techtel LMDS Comunicaciones Interactivas 3816 1347 779 211 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1264 371 22 Telefonica del Peru S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1021 2486 56 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 1926 368 14 RAYA-AS, EG 36992 1684 1509 399 ETISALAT-MISR, EG 24863 1261 389 20 LINKdotNET-AS, EG 36903 1249 554 96 MT-MPLS, MA 37069 1093 1096 13 MOBINIL, EG 29571 1072 94 22 ORANGE-COTE-IVOIRE, CI 36935 1047 520 31 Vodafone-, EG 20011 580 154 212 NTT-DATA-Inc, ZA 36914 555 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 14180 37205 5387 AMAZON-02, US 9808 13282 8729 118 CHINAMOBILE-CN China Mobile Communication 8151 12661 3293 584 UNINET, MX 12479 7279 1711 149 UNI2-AS, ES 7545 6038 834 586 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 298 66 ALJAWWALSTC-AS, SA 22773 4778 3100 367 ASN-CXA-ALL-CCI-22773-RDC, US 11492 4715 313 913 CABLEONE, US 18403 4625 347 24 FPT-AS-AP FPT Telecom Company, VN 9498 4602 541 336 BBIL-AP BHARTI Airtel Ltd., IN 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 13282 13164 CHINAMOBILE-CN China Mobile Communications Grou 8151 12661 12077 UNINET, MX 12479 7279 7130 UNI2-AS, ES 7545 6038 5452 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4767 ALJAWWALSTC-AS, SA 18403 4625 4601 FPT-AS-AP FPT Telecom Company, VN 22773 4778 4411 ASN-CXA-ALL-CCI-22773-RDC, US 9498 4602 4266 BBIL-AP BHARTI Airtel Ltd., IN 7552 4014 3986 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: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3356 LEVEL3, 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 /13:578 /14:1197 /15:2088 /16:13641 /17:8156 /18:13407 /19:24665 /20:44474 /21:51897 /22:112717 /23:104982 /24:639109 /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 6857 12661 UNINET, MX 12479 6209 7279 UNI2-AS, ES 11492 3559 4715 CABLEONE, US 39891 3521 4833 ALJAWWALSTC-AS, SA 6327 3478 3691 SHAW, CA 22773 3049 4778 ASN-CXA-ALL-CCI-22773-RDC, US 7155 2820 3861 VIASAT-SP-BACKBONE, US 16509 2423 14180 AMAZON-02, US 30036 2321 2664 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2212 3457 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) ---------------------------------------------- 1:2439 2:1535 3:971 4:10 5:4946 6:190 7:6 8:1500 9:6 11:172 12:1230 13:543 14:2602 15:414 16:303 17:388 18:910 20:587 21:4 22:188 23:8062 24:2559 25:2 27:2793 29:19 31:3384 32:31 33:1 34:84 35:286 36:4605 37:4549 38:9933 39:1194 40:426 41:4429 42:2141 43:2885 44:403 45:19638 46:5077 47:386 49:2150 50:2051 51:597 52:1562 54:279 55:1105 56:11 57:300 58:2345 59:1339 60:1167 61:3089 62:3096 63:1740 64:5970 65:2119 66:5860 67:3229 68:1493 69:4172 70:1027 71:617 72:3031 74:2921 75:1515 76:596 77:2771 78:1921 79:1788 80:2295 81:2071 82:3831 83:1464 84:2026 85:3644 86:1105 87:2155 88:1346 89:4559 90:835 91:8410 92:2839 93:3015 94:4234 95:4539 96:1440 97:311 98:951 99:776 100:68 101:1351 102:4338 103:32651 104:5493 105:780 106:916 107:2808 108:1202 109:4226 110:2313 111:3914 112:2792 113:1928 114:2100 115:2263 116:2173 117:3136 118:2997 119:2089 120:2378 121:1497 122:2945 123:2276 124:1649 125:2932 126:125 128:1579 129:957 130:1509 131:2247 132:766 133:462 134:1644 135:525 136:1497 137:1142 138:2979 139:1595 140:1723 141:1553 142:2380 143:2120 144:1364 145:631 146:2182 147:2136 148:2789 149:2878 150:1319 151:2605 152:2274 153:788 154:9247 155:2274 156:4328 157:2240 158:1467 159:2700 160:3654 161:1995 162:3999 163:2323 164:1963 165:2622 166:1305 167:2152 168:3905 169:803 170:5431 171:1116 172:4511 173:3425 174:908 175:1355 176:3760 177:4733 178:4298 179:2287 180:2977 181:4329 182:3837 183:2629 184:2049 185:21663 186:5533 187:4768 188:4440 189:4504 190:9690 191:1533 192:11412 193:9503 194:7858 195:5610 196:3281 197:3293 198:6043 199:6096 200:8072 201:6389 202:10434 203:10503 204:4616 205:3676 206:4368 207:3765 208:4256 209:5389 210:4716 211:2679 212:4887 213:4014 214:1025 215:53 216:7068 217:3375 218:1594 219:406 220:2193 221:1285 222:776 223:3199 End of report