IPv4 R&E Routing Table Report 23:00 GMT Mon 02 Feb, 2026 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: 1028403 Prefixes after maximum aggregation (per Origin AS): 395499 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 507784 Number of IPv4 prefixes with a valid ROA: 615366 Number of IPv4 prefixes with an invalid ROA: 582 Number of IPv4 prefixes with no ROA: 412455 Total ASes present in the Internet Routing Table: 77758 Prefixes per ASN: 13.23 Origin-only ASes present in the Internet Routing Table: 66632 Origin ASes announcing only one prefix: 27152 Transit ASes present in the Internet Routing Table: 11126 Transit-only ASes present in the Internet Routing Table: 570 Paths with bogon ASNs present in the IPv4 Routing Table: 42 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 209 Max AS path prepend of ASN (214570) 200 Prefixes from unregistered ASNs in the Routing Table: 1061 Number of instances of unregistered ASNs: 1090 Number of 32-bit ASNs allocated by the RIRs: 48552 Number of 32-bit ASNs visible in the Routing Table: 39723 Prefixes from 32-bit ASNs in the Routing Table: 221778 Number of bogon 32-bit ASNs visible in the Routing Table: 76 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 462 Number of addresses announced to Internet: 3102701312 Equivalent to 184 /8s, 239 /16s and 119 /24s Percentage of available address space announced: 83.8 Percentage of allocated address space announced: 83.8 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: 334786 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 280831 Total APNIC prefixes after maximum aggregation: 81872 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 267369 Unique aggregates announced from the APNIC address blocks: 107099 APNIC Region origin ASes present in the Internet Routing Table: 14995 APNIC Prefixes per ASN: 17.83 APNIC Region origin ASes announcing only one prefix: 4553 APNIC Region transit ASes present in the Internet Routing Table: 2012 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10577 Number of APNIC addresses announced to Internet: 751695360 Equivalent to 44 /8s, 205 /16s and 246 /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: 301242 Total ARIN prefixes after maximum aggregation: 135505 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 300897 Unique aggregates announced from the ARIN address blocks: 146290 ARIN Region origin ASes present in the Internet Routing Table: 19350 ARIN Prefixes per ASN: 15.55 ARIN Region origin ASes announcing only one prefix: 7071 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: 5450 Number of ARIN addresses announced to Internet: 1343157760 Equivalent to 80 /8s, 14 /16s and 246 /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: 282672 Total RIPE prefixes after maximum aggregation: 139984 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 284850 Unique aggregates announced from the RIPE address blocks: 185171 RIPE Region origin ASes present in the Internet Routing Table: 29159 RIPE Prefixes per ASN: 9.77 RIPE Region origin ASes announcing only one prefix: 12101 RIPE Region transit ASes present in the Internet Routing Table: 4059 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 209 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12958 Number of RIPE addresses announced to Internet: 733451008 Equivalent to 43 /8s, 183 /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: 125997 Total LACNIC prefixes after maximum aggregation: 30526 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 121850 Unique aggregates announced from the LACNIC address blocks: 49498 LACNIC Region origin ASes present in the Internet Routing Table: 11353 LACNIC Prefixes per ASN: 10.73 LACNIC Region origin ASes announcing only one prefix: 2684 LACNIC Region transit ASes present in the Internet Routing Table: 2560 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 68 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9358 Number of LACNIC addresses announced to Internet: 170905088 Equivalent to 10 /8s, 47 /16s and 206 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 36600 Total AfriNIC prefixes after maximum aggregation: 6928 AfriNIC Deaggregation factor: 5.28 Prefixes being announced from the AfriNIC address blocks: 52975 Unique aggregates announced from the AfriNIC address blocks: 19347 AfriNIC Region origin ASes present in the Internet Routing Table: 2014 AfriNIC Prefixes per ASN: 26.30 AfriNIC Region origin ASes announcing only one prefix: 743 AfriNIC Region transit ASes present in the Internet Routing Table: 388 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 52 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1380 Number of AfriNIC addresses announced to Internet: 103216640 Equivalent to 6 /8s, 38 /16s and 246 /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 13619 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 6012 832 564 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4729 544 337 BBIL-AP BHARTI Airtel Ltd., IN 18403 4414 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4044 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3724 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3424 832 183 CMNET-JIANGSU-AP China Mobile communicati 45899 3326 1868 98 VNPT-AS-VN VNPT Corp, VN 24560 2967 865 495 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2767 174 531 LCS-AS-AP LARUS Limited, HK 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 14095 38819 5518 AMAZON-02 - Amazon.com, Inc., US 22773 4775 3098 362 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1020 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3699 1321 71 SHAW - Shaw Communications, CA 174 3686 8767 849 COGENT-174 - Cogent Communications, LLC, 396982 3322 4866 496 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3143 54728 2394 DNIC-AS-00749 - United States Department 16625 2801 1201 2123 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2697 221 888 AS-COLOCROSSING - HostPapa, 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 7239 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3901 365 2229 M247, RO 20940 3816 3393 111 AKAMAI-ASN1, NL 12389 3150 2317 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2563 182 1862 CDNEXT, GB 34984 2434 366 578 TELLCOM-AS, TR 8452 1715 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1587 241 767 HOSTROYALE, IN 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 12686 3298 607 UNINET, MX 10620 3444 457 1106 Telmex Colombia S.A., CO 13999 2483 506 350 Mega Cable, S.A. de C.V., MX 11830 1987 369 65 Instituto Costarricense de Electricidad y 28573 1375 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1339 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1255 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1016 2486 57 TIM SA, BR 18881 915 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 1983 646 33 RAYA-AS, EG 36992 1844 1532 338 ETISALAT-MISR, EG 24863 1283 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1146 524 47 Vodafone-, EG 37069 1117 1112 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 567 82 3 KENET-AS, KE 328608 562 48 170 Africa-on-Cloud-AS, ZA 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 14095 38819 5518 AMAZON-02 - Amazon.com, Inc., US 9808 13619 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12686 3298 607 UNINET, MX 12479 7239 1711 149 UNI2-AS, ES 7545 6012 832 564 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 22773 4775 3098 362 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4729 544 337 BBIL-AP BHARTI Airtel Ltd., IN 11492 4637 308 1020 CABLEONE - CABLE ONE, INC., US 18403 4414 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 13619 13499 CHINAMOBILE-CN China Mobile Communications Grou 8151 12686 12079 UNINET, MX 12479 7239 7090 UNI2-AS, ES 7545 6012 5448 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 22773 4775 4413 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 9498 4729 4392 BBIL-AP BHARTI Airtel Ltd., IN 18403 4414 4390 FPT-AS-AP FPT Telecom Company, VN 7552 4044 4015 VIETEL-AS-AP Viettel Group, VN 7155 3861 3776 VIASAT-SP-BACKBONE - ViaSat,Inc., 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 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.48.0/24 Origin: 16904 ARVIG-16904 - Arvig Enterprises Inc., US 23.137.48.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 174 COGENT-174 - Cogent Communications, LLC, 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, 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 /10:40 /11:92 /12:302 /13:578 /14:1194 /15:2082 /16:13647 /17:8194 /18:13436 /19:24759 /20:45077 /21:52101 /22:113272 /23:106162 /24:647437 /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 6856 12686 UNINET, MX 12479 6167 7239 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3497 4637 CABLEONE - CABLE ONE, INC., US 6327 3479 3699 SHAW - Shaw Communications, CA 22773 3049 4775 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2510 14095 AMAZON-02 - Amazon.com, Inc., US 30036 2307 2652 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2224 3444 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) ---------------------------------------------- 1:2511 2:1520 3:985 4:9 5:5093 6:185 7:6 8:1496 9:15 11:172 12:1225 13:619 14:2642 15:419 16:179 17:391 18:918 20:597 21:4 22:188 23:8122 24:2625 25:2 27:2815 29:19 31:3442 32:31 34:84 35:291 36:4665 37:4504 38:10401 39:1258 40:440 41:4536 42:1963 43:3001 44:415 45:19739 46:4922 47:401 48:38 49:2201 50:2055 51:598 52:1254 54:238 55:1082 56:11 57:312 58:2340 59:1350 60:1171 61:3156 62:3092 63:1762 64:6203 65:2103 66:6007 67:3254 68:1493 69:4203 70:1036 71:615 72:3103 74:2970 75:1509 76:596 77:2680 78:1925 79:1804 80:2312 81:2155 82:4016 83:1470 84:2021 85:3699 86:1105 87:2251 88:1339 89:4660 90:823 91:8396 92:2866 93:2999 94:4287 95:4545 96:1446 97:312 98:944 99:784 100:69 101:1583 102:4392 103:32958 104:5460 105:798 106:918 107:2836 108:1219 109:4196 110:2311 111:4069 112:3139 113:1981 114:2171 115:2264 116:2190 117:3377 118:2993 119:2105 120:2668 121:1511 122:2967 123:2324 124:1661 125:2987 126:125 128:1653 129:932 130:1569 131:2341 132:775 133:461 134:1620 135:542 136:1637 137:1355 138:2960 139:1613 140:1776 141:1568 142:2476 143:2178 144:1608 145:625 146:2198 147:2275 148:2782 149:2959 150:1325 151:2683 152:2281 153:862 154:9423 155:2298 156:4495 157:2251 158:1506 159:2758 160:3731 161:2000 162:4042 163:2343 164:1974 165:2639 166:1284 167:2219 168:3937 169:908 170:5480 171:1115 172:4564 173:3437 174:891 175:1362 176:3780 177:4725 178:4376 179:2280 180:3113 181:4396 182:3919 183:2828 184:2016 185:21656 186:5565 187:4865 188:4614 189:4478 190:9726 191:1524 192:11451 193:9493 194:7825 195:5607 196:3254 197:3332 198:6081 199:6107 200:8043 201:6390 202:10594 203:10609 204:4709 205:3713 206:4392 207:3810 208:4355 209:5408 210:4745 211:2690 212:4948 213:4041 214:1070 215:54 216:7132 217:3478 218:1669 219:421 220:2197 221:1310 222:932 223:3292 End of report