IPv4 R&E Routing Table Report 23:00 GMT Wed 08 Apr, 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: 1036708 Prefixes after maximum aggregation (per Origin AS): 398482 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 512648 Number of IPv4 prefixes with a valid ROA: 628178 Number of IPv4 prefixes with an invalid ROA: 418 Number of IPv4 prefixes with no ROA: 408112 Total ASes present in the Internet Routing Table: 78204 Prefixes per ASN: 13.26 Origin-only ASes present in the Internet Routing Table: 67018 Origin ASes announcing only one prefix: 27346 Transit ASes present in the Internet Routing Table: 11186 Transit-only ASes present in the Internet Routing Table: 585 Paths with bogon ASNs present in the IPv4 Routing Table: 39 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 70 Max AS path prepend of ASN ( 37447) 66 Prefixes from unregistered ASNs in the Routing Table: 997 Number of instances of unregistered ASNs: 1029 Number of 32-bit ASNs allocated by the RIRs: 49218 Number of 32-bit ASNs visible in the Routing Table: 40288 Prefixes from 32-bit ASNs in the Routing Table: 227174 Number of bogon 32-bit ASNs visible in the Routing Table: 82 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 418 Number of addresses announced to Internet: 3107670272 Equivalent to 185 /8s, 59 /16s and 73 /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: 338026 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 282695 Total APNIC prefixes after maximum aggregation: 82346 APNIC Deaggregation factor: 3.43 Prefixes being announced from the APNIC address blocks: 269779 Unique aggregates announced from the APNIC address blocks: 107573 APNIC Region origin ASes present in the Internet Routing Table: 15124 APNIC Prefixes per ASN: 17.84 APNIC Region origin ASes announcing only one prefix: 4611 APNIC Region transit ASes present in the Internet Routing Table: 2050 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 52 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10711 Number of APNIC addresses announced to Internet: 752941056 Equivalent to 44 /8s, 224 /16s and 248 /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: 302022 Total ARIN prefixes after maximum aggregation: 135638 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 301501 Unique aggregates announced from the ARIN address blocks: 146708 ARIN Region origin ASes present in the Internet Routing Table: 19393 ARIN Prefixes per ASN: 15.55 ARIN Region origin ASes announcing only one prefix: 7119 ARIN Region transit ASes present in the Internet Routing Table: 1922 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 29 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5542 Number of ARIN addresses announced to Internet: 1348641280 Equivalent to 80 /8s, 98 /16s and 162 /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, 393216-404380 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: 286916 Total RIPE prefixes after maximum aggregation: 142086 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 289330 Unique aggregates announced from the RIPE address blocks: 188463 RIPE Region origin ASes present in the Internet Routing Table: 29371 RIPE Prefixes per ASN: 9.85 RIPE Region origin ASes announcing only one prefix: 12179 RIPE Region transit ASes present in the Internet Routing Table: 4050 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13240 Number of RIPE addresses announced to Internet: 732767744 Equivalent to 43 /8s, 173 /16s and 38 /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: 127134 Total LACNIC prefixes after maximum aggregation: 30777 LACNIC Deaggregation factor: 4.13 Prefixes being announced from the LACNIC address blocks: 122475 Unique aggregates announced from the LACNIC address blocks: 50218 LACNIC Region origin ASes present in the Internet Routing Table: 11377 LACNIC Prefixes per ASN: 10.77 LACNIC Region origin ASes announcing only one prefix: 2700 LACNIC Region transit ASes present in the Internet Routing Table: 2585 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: 9413 Number of LACNIC addresses announced to Internet: 169887744 Equivalent to 10 /8s, 32 /16s and 72 /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: 36944 Total AfriNIC prefixes after maximum aggregation: 7007 AfriNIC Deaggregation factor: 5.27 Prefixes being announced from the AfriNIC address blocks: 53205 Unique aggregates announced from the AfriNIC address blocks: 19320 AfriNIC Region origin ASes present in the Internet Routing Table: 2016 AfriNIC Prefixes per ASN: 26.39 AfriNIC Region origin ASes announcing only one prefix: 737 AfriNIC Region transit ASes present in the Internet Routing Table: 379 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 70 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1382 Number of AfriNIC addresses announced to Internet: 103234816 Equivalent to 6 /8s, 39 /16s and 61 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13808 8729 120 CHINAMOBILE-CN China Mobile Communication 7545 5916 828 499 TPG-INTERNET-AP TPG Telecom Limited, AU 9498 4896 549 326 BBIL-AP BHARTI Airtel Ltd., IN 18403 4559 347 26 FPT-AS-AP FPT Telecom Company, VN 7552 4057 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3663 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3483 887 177 CMNET-JIANGSU-AP China Mobile communicati 45899 3353 1868 99 VNPT-AS-VN VNPT Corp, VN 24560 3011 859 520 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 17561 2718 171 502 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 14585 41273 5675 AMAZON-02 - Amazon.com, Inc., US 22773 4782 3101 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4668 310 1033 CABLEONE - CABLE ONE, INC., US 7155 3858 284 83 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3724 1305 77 SHAW - Shaw Communications, CA 396982 3307 4857 494 GOOGLE-CLOUD-PLATFORM - Google LLC, US 174 3215 8767 829 COGENT-174 - Cogent Communications, LLC, 749 3140 54728 2391 DNIC-AS-00749 - United States Department 7029 2745 2585 947 WINDSTREAM - Windstream Communications LL 36352 2707 222 893 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 7161 1711 149 UNI2-AS, ES 39891 4972 306 72 ALJAWWALSTC-AS, SA 9009 3829 354 2250 M247, RO 20940 3813 3389 110 AKAMAI-ASN1, NL 12389 3141 2318 869 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2705 196 1987 CDNEXT, GB 34984 2448 365 571 TELLCOM-AS, TR 8452 1724 1852 13 TE-AS TE-AS, EG 203020 1637 249 809 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 12742 3284 619 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2458 506 344 Mega Cable, S.A. de C.V., MX 11830 1948 369 65 Instituto Costarricense de Electricidad y 11664 1435 277 34 Techtel LMDS Comunicaciones Interactivas 28573 1372 2433 264 Claro NXT Telecomunicacoes Ltda, BR 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1242 371 22 INTEGRATEL PERU S.A.A., PE 26615 1059 2393 95 TIM SA, BR 22884 1055 71 361 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 2025 648 34 RAYA-AS, EG 36992 1859 1532 341 ETISALAT-MISR, EG 24863 1254 389 16 LINKdotNET-AS, EG 36935 1242 523 45 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1117 1100 11 MOBINIL, EG 29571 1071 78 19 ORANGE-COTE-IVOIRE, CI 20011 589 155 220 NTT-DATA-Inc, ZA 15399 555 57 59 WANANCHI-, KE 36914 549 82 3 KENET-AS, 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 14585 41273 5675 AMAZON-02 - Amazon.com, Inc., US 9808 13808 8729 120 CHINAMOBILE-CN China Mobile Communication 8151 12742 3284 619 UNINET, MX 12479 7161 1711 149 UNI2-AS, ES 7545 5916 828 499 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 306 72 ALJAWWALSTC-AS, SA 9498 4896 549 326 BBIL-AP BHARTI Airtel Ltd., IN 22773 4782 3101 366 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4668 310 1033 CABLEONE - CABLE ONE, INC., US 18403 4559 347 26 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 13808 13688 CHINAMOBILE-CN China Mobile Communications Grou 8151 12742 12123 UNINET, MX 12479 7161 7012 UNI2-AS, ES 7545 5916 5417 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4972 4900 ALJAWWALSTC-AS, SA 9498 4896 4570 BBIL-AP BHARTI Airtel Ltd., IN 18403 4559 4533 FPT-AS-AP FPT Telecom Company, VN 22773 4782 4416 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4057 4028 VIETEL-AS-AP Viettel Group, VN 7155 3858 3775 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 395729 UNALLOCATED 8.28.58.0/24 32787 PROLEXIC-TECHNOLOGIES-D 395729 UNALLOCATED 8.28.60.0/24 32787 PROLEXIC-TECHNOLOGIES-D 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 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 /12:297 /13:581 /14:1189 /15:2092 /16:13586 /17:8234 /18:13235 /19:25320 /20:45607 /21:52143 /22:113416 /23:106950 /24:653893 /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 6941 12742 UNINET, MX 12479 6104 7161 UNI2-AS, ES 39891 3656 4972 ALJAWWALSTC-AS, SA 11492 3528 4668 CABLEONE - CABLE ONE, INC., US 6327 3504 3724 SHAW - Shaw Communications, CA 22773 3053 4782 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3858 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2625 14585 AMAZON-02 - Amazon.com, Inc., US 30036 2317 2666 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2232 3452 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) ---------------------------------------------- 1:2502 2:1787 3:995 4:5 5:5175 6:196 7:6 8:1487 9:39 11:172 12:1188 13:685 14:2677 15:458 16:170 17:423 18:915 20:583 21:4 22:188 23:8141 24:2773 25:2 27:2814 28:1 29:19 31:3478 32:36 34:90 35:283 36:4660 37:4445 38:10047 39:1279 40:421 41:4539 42:2166 43:3084 44:446 45:19814 46:4849 47:408 48:125 49:2232 50:2017 51:618 52:1297 54:274 55:1120 56:11 57:321 58:2365 59:1386 60:1173 61:3165 62:3118 63:1719 64:6301 65:2136 66:6062 67:3261 68:1497 69:4199 70:1062 71:607 72:3177 74:3018 75:1479 76:584 77:2922 78:1960 79:1788 80:2349 81:2201 82:4024 83:1444 84:2129 85:3793 86:1091 87:2310 88:1346 89:4700 90:780 91:8405 92:2821 93:3006 94:4358 95:4643 96:1453 97:314 98:943 99:809 100:68 101:1624 102:4469 103:32985 104:5351 105:820 106:912 107:2869 108:1227 109:4207 110:2302 111:4113 112:3157 113:1982 114:2265 115:2288 116:2181 117:3504 118:3000 119:2108 120:2690 121:1544 122:2984 123:2268 124:1705 125:3008 126:125 128:1586 129:963 130:1613 131:2464 132:810 133:475 134:1663 135:609 136:1605 137:1342 138:3292 139:1632 140:1757 141:1723 142:2533 143:2108 144:1721 145:642 146:2200 147:2182 148:2766 149:3094 150:1366 151:2791 152:2310 153:1185 154:9480 155:2304 156:4403 157:2288 158:1526 159:2867 160:3830 161:1961 162:4028 163:2484 164:2034 165:2643 166:1273 167:2292 168:3992 169:850 170:5547 171:1125 172:4534 173:3474 174:881 175:1375 176:3867 177:4825 178:4368 179:2286 180:3164 181:4508 182:4015 183:2833 184:2023 185:21777 186:5773 187:4928 188:4610 189:4506 190:9809 191:1563 192:11467 193:9584 194:7854 195:5811 196:3342 197:3352 198:6109 199:6072 200:8048 201:6377 202:10679 203:10645 204:4763 205:3695 206:4486 207:3821 208:4370 209:5388 210:4706 211:2689 212:5004 213:4100 214:1055 215:47 216:7282 217:3563 218:1701 219:424 220:2202 221:1308 222:936 223:3416 End of report