IPv4 R&E Routing Table Report 23:00 GMT Mon 09 Mar, 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: 1033103 Prefixes after maximum aggregation (per Origin AS): 397004 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 510111 Number of IPv4 prefixes with a valid ROA: 621860 Number of IPv4 prefixes with an invalid ROA: 602 Number of IPv4 prefixes with no ROA: 410641 Total ASes present in the Internet Routing Table: 78033 Prefixes per ASN: 13.24 Origin-only ASes present in the Internet Routing Table: 66844 Origin ASes announcing only one prefix: 27275 Transit ASes present in the Internet Routing Table: 11189 Transit-only ASes present in the Internet Routing Table: 587 Paths with bogon ASNs present in the IPv4 Routing Table: 38 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 1098 Number of instances of unregistered ASNs: 1127 Number of 32-bit ASNs allocated by the RIRs: 48985 Number of 32-bit ASNs visible in the Routing Table: 40028 Prefixes from 32-bit ASNs in the Routing Table: 223787 Number of bogon 32-bit ASNs visible in the Routing Table: 78 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 410 Number of addresses announced to Internet: 3113677568 Equivalent to 185 /8s, 150 /16s and 243 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 336510 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 281258 Total APNIC prefixes after maximum aggregation: 81743 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 268522 Unique aggregates announced from the APNIC address blocks: 107218 APNIC Region origin ASes present in the Internet Routing Table: 15097 APNIC Prefixes per ASN: 17.79 APNIC Region origin ASes announcing only one prefix: 4609 APNIC Region transit ASes present in the Internet Routing Table: 2038 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10668 Number of APNIC addresses announced to Internet: 752042496 Equivalent to 44 /8s, 211 /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: 302576 Total ARIN prefixes after maximum aggregation: 136341 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 301390 Unique aggregates announced from the ARIN address blocks: 146753 ARIN Region origin ASes present in the Internet Routing Table: 19384 ARIN Prefixes per ASN: 15.55 ARIN Region origin ASes announcing only one prefix: 7104 ARIN Region transit ASes present in the Internet Routing Table: 1931 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5502 Number of ARIN addresses announced to Internet: 1352715776 Equivalent to 80 /8s, 160 /16s and 206 /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: 284781 Total RIPE prefixes after maximum aggregation: 140902 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 287304 Unique aggregates announced from the RIPE address blocks: 186674 RIPE Region origin ASes present in the Internet Routing Table: 29279 RIPE Prefixes per ASN: 9.81 RIPE Region origin ASes announcing only one prefix: 12148 RIPE Region transit ASes present in the Internet Routing Table: 4060 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 62 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13114 Number of RIPE addresses announced to Internet: 733566976 Equivalent to 43 /8s, 185 /16s and 88 /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: 126485 Total LACNIC prefixes after maximum aggregation: 30369 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 122170 Unique aggregates announced from the LACNIC address blocks: 49631 LACNIC Region origin ASes present in the Internet Routing Table: 11353 LACNIC Prefixes per ASN: 10.76 LACNIC Region origin ASes announcing only one prefix: 2680 LACNIC Region transit ASes present in the Internet Routing Table: 2568 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: 9366 Number of LACNIC addresses announced to Internet: 170939136 Equivalent to 10 /8s, 48 /16s and 83 /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: 36905 Total AfriNIC prefixes after maximum aggregation: 6942 AfriNIC Deaggregation factor: 5.32 Prefixes being announced from the AfriNIC address blocks: 53307 Unique aggregates announced from the AfriNIC address blocks: 19472 AfriNIC Region origin ASes present in the Internet Routing Table: 2012 AfriNIC Prefixes per ASN: 26.49 AfriNIC Region origin ASes announcing only one prefix: 734 AfriNIC Region transit ASes present in the Internet Routing Table: 386 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1378 Number of AfriNIC addresses announced to Internet: 103167488 Equivalent to 6 /8s, 38 /16s and 54 /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 13726 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5977 830 528 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4828 547 333 BBIL-AP BHARTI Airtel Ltd., IN 18403 4577 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4048 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3677 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3468 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3333 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 2995 864 512 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2758 173 533 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 14452 41235 5562 AMAZON-02 - Amazon.com, Inc., US 22773 4780 3101 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4643 308 1019 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3708 1321 75 SHAW - Shaw Communications, CA 174 3458 8767 853 COGENT-174 - Cogent Communications, LLC, 396982 3292 4856 487 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54728 2393 DNIC-AS-00749 - United States Department 36352 2703 222 892 AS-COLOCROSSING - HostPapa, US 16625 2702 1177 2089 AKAMAI-AS - Akamai Technologies, Inc., 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 7227 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3823 355 2243 M247, RO 20940 3820 3393 112 AKAMAI-ASN1, NL 12389 3146 2319 873 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2665 193 1952 CDNEXT, GB 34984 2418 362 583 TELLCOM-AS, TR 8452 1696 1852 14 TE-AS TE-AS, EG 203020 1611 243 786 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 12779 3301 591 UNINET, MX 10620 3453 458 1104 Telmex Colombia S.A., CO 13999 2455 506 349 Mega Cable, S.A. de C.V., MX 11830 1958 369 65 Instituto Costarricense de Electricidad y 11664 1453 278 33 Techtel LMDS Comunicaciones Interactivas 28573 1371 2430 272 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1249 371 22 INTEGRATEL PERU S.A.A., PE 26615 1060 2475 94 TIM SA, BR 22884 1059 67 360 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 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 2044 648 34 RAYA-AS, EG 36992 1847 1532 340 ETISALAT-MISR, EG 24863 1289 389 16 LINKdotNET-AS, EG 36903 1230 555 98 MT-MPLS, MA 36935 1228 520 43 Vodafone-, EG 37069 1109 1100 11 MOBINIL, EG 29571 1073 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 556 82 3 KENET-AS, KE 328608 551 46 170 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 14452 41235 5562 AMAZON-02 - Amazon.com, Inc., US 9808 13726 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12779 3301 591 UNINET, MX 12479 7227 1711 149 UNI2-AS, ES 7545 5977 830 528 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 9498 4828 547 333 BBIL-AP BHARTI Airtel Ltd., IN 22773 4780 3101 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4643 308 1019 CABLEONE - CABLE ONE, INC., US 18403 4577 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 13726 13606 CHINAMOBILE-CN China Mobile Communications Grou 8151 12779 12188 UNINET, MX 12479 7227 7078 UNI2-AS, ES 7545 5977 5449 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 18403 4577 4553 FPT-AS-AP FPT Telecom Company, VN 9498 4828 4495 BBIL-AP BHARTI Airtel Ltd., IN 22773 4780 4412 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4048 4019 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 13450 UNALLOCATED 8.29.117.0/24 18712 EVERFAST-KC - Everfast 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 397665 UNALLOCATED 12.24.28.0/24 7018 ATT-INTERNET4 - AT&T En 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 /11:95 /12:298 /13:584 /14:1199 /15:2106 /16:13653 /17:8233 /18:13484 /19:25309 /20:45238 /21:52179 /22:113458 /23:106890 /24:650307 /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 6945 12779 UNINET, MX 12479 6161 7227 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3503 4643 CABLEONE - CABLE ONE, INC., US 6327 3488 3708 SHAW - Shaw Communications, CA 22773 3047 4780 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2582 14452 AMAZON-02 - Amazon.com, Inc., US 30036 2316 2663 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2233 3453 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) ---------------------------------------------- 1:2505 2:1589 3:998 4:5 5:5171 6:196 7:6 8:1498 9:28 11:172 12:1194 13:654 14:2660 15:459 16:177 17:398 18:919 20:603 21:4 22:188 23:8169 24:2659 25:2 27:2817 29:19 31:3403 32:30 34:90 35:290 36:4644 37:4462 38:10070 39:1267 40:243 41:4547 42:2057 43:3033 44:443 45:19928 46:4895 47:410 48:89 49:2185 50:2081 51:600 52:1293 54:279 55:1113 56:11 57:317 58:2366 59:1361 60:1174 61:3139 62:3121 63:1755 64:6230 65:2118 66:6021 67:3261 68:1499 69:4233 70:1044 71:612 72:3103 74:2964 75:1497 76:592 77:2840 78:1911 79:1791 80:2331 81:2220 82:3977 83:1450 84:2043 85:3819 86:1101 87:2255 88:1353 89:4685 90:811 91:8416 92:2853 93:3001 94:4324 95:4588 96:1446 97:312 98:948 99:799 100:67 101:1607 102:4460 103:33024 104:5393 105:792 106:925 107:2853 108:1202 109:4225 110:2295 111:4095 112:3148 113:1977 114:2183 115:2285 116:2181 117:3436 118:3029 119:2080 120:2681 121:1508 122:2972 123:2249 124:1689 125:3023 126:125 128:1655 129:944 130:1585 131:2407 132:787 133:463 134:1642 135:581 136:1598 137:1349 138:3143 139:1642 140:1788 141:1584 142:2516 143:2128 144:1731 145:632 146:2196 147:2148 148:2795 149:3038 150:1342 151:2675 152:2277 153:950 154:9566 155:2308 156:4361 157:2262 158:1503 159:2769 160:3835 161:1952 162:4013 163:2394 164:2031 165:2629 166:1302 167:2253 168:3960 169:880 170:5542 171:1111 172:4369 173:3451 174:886 175:1366 176:3807 177:4769 178:4329 179:2290 180:3153 181:4449 182:3994 183:2831 184:2013 185:21762 186:5675 187:4910 188:4569 189:4503 190:9765 191:1557 192:11420 193:9585 194:7834 195:5702 196:3312 197:3338 198:6108 199:6101 200:8042 201:6385 202:10659 203:10624 204:4736 205:3699 206:4460 207:3861 208:4371 209:5376 210:4726 211:2686 212:4995 213:4081 214:1049 215:46 216:7255 217:3533 218:1678 219:420 220:2197 221:1312 222:937 223:3326 End of report