IPv4 R&E Routing Table Report 23:00 GMT Thu 28 May, 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: 1047578 Prefixes after maximum aggregation (per Origin AS): 403073 Deaggregation factor: 2.60 Unique aggregates announced (without unneeded subnets): 518610 Number of IPv4 prefixes with a valid ROA: 674333 Number of IPv4 prefixes with an invalid ROA: 572 Number of IPv4 prefixes with no ROA: 372673 Total ASes present in the Internet Routing Table: 78431 Prefixes per ASN: 13.36 Origin-only ASes present in the Internet Routing Table: 67237 Origin ASes announcing only one prefix: 27419 Transit ASes present in the Internet Routing Table: 11194 Transit-only ASes present in the Internet Routing Table: 579 Paths with bogon ASNs present in the IPv4 Routing Table: 42 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 216 Max AS path prepend of ASN (205624) 211 Prefixes from unregistered ASNs in the Routing Table: 1224 Number of instances of unregistered ASNs: 1254 Number of 32-bit ASNs allocated by the RIRs: 49912 Number of 32-bit ASNs visible in the Routing Table: 40669 Prefixes from 32-bit ASNs in the Routing Table: 231328 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: 433 Number of addresses announced to Internet: 3103845120 Equivalent to 185 /8s, 0 /16s and 235 /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: 342233 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 286354 Total APNIC prefixes after maximum aggregation: 83221 APNIC Deaggregation factor: 3.44 Prefixes being announced from the APNIC address blocks: 273193 Unique aggregates announced from the APNIC address blocks: 108567 APNIC Region origin ASes present in the Internet Routing Table: 15157 APNIC Prefixes per ASN: 18.02 APNIC Region origin ASes announcing only one prefix: 4587 APNIC Region transit ASes present in the Internet Routing Table: 2043 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 36 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10769 Number of APNIC addresses announced to Internet: 747741696 Equivalent to 44 /8s, 145 /16s and 162 /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: 303137 Total ARIN prefixes after maximum aggregation: 137407 ARIN Deaggregation factor: 2.21 Prefixes being announced from the ARIN address blocks: 301899 Unique aggregates announced from the ARIN address blocks: 148032 ARIN Region origin ASes present in the Internet Routing Table: 19406 ARIN Prefixes per ASN: 15.56 ARIN Region origin ASes announcing only one prefix: 7121 ARIN Region transit ASes present in the Internet Routing Table: 1886 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 216 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5596 Number of ARIN addresses announced to Internet: 1348101376 Equivalent to 80 /8s, 90 /16s and 101 /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: 290473 Total RIPE prefixes after maximum aggregation: 143933 RIPE Deaggregation factor: 2.02 Prefixes being announced from the RIPE address blocks: 294055 Unique aggregates announced from the RIPE address blocks: 192058 RIPE Region origin ASes present in the Internet Routing Table: 29516 RIPE Prefixes per ASN: 9.96 RIPE Region origin ASes announcing only one prefix: 12243 RIPE Region transit ASes present in the Internet Routing Table: 4097 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 35 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13462 Number of RIPE addresses announced to Internet: 733859072 Equivalent to 43 /8s, 189 /16s and 205 /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: 128950 Total LACNIC prefixes after maximum aggregation: 30825 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 123307 Unique aggregates announced from the LACNIC address blocks: 50295 LACNIC Region origin ASes present in the Internet Routing Table: 11410 LACNIC Prefixes per ASN: 10.81 LACNIC Region origin ASes announcing only one prefix: 2740 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: 9449 Number of LACNIC addresses announced to Internet: 169725440 Equivalent to 10 /8s, 29 /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: 37440 Total AfriNIC prefixes after maximum aggregation: 7010 AfriNIC Deaggregation factor: 5.34 Prefixes being announced from the AfriNIC address blocks: 54691 Unique aggregates announced from the AfriNIC address blocks: 19289 AfriNIC Region origin ASes present in the Internet Routing Table: 2024 AfriNIC Prefixes per ASN: 27.02 AfriNIC Region origin ASes announcing only one prefix: 728 AfriNIC Region transit ASes present in the Internet Routing Table: 382 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: 1393 Number of AfriNIC addresses announced to Internet: 104220672 Equivalent to 6 /8s, 54 /16s and 72 /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 13936 8737 119 CHINAMOBILE-CN - China Mobile Communicati 7545 5876 825 476 TPG-INTERNET-AP - TPG Telecom Limited, AU 9498 4942 552 324 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4555 347 25 FPT-VN - FPT Telecom Company, VN 7552 4065 1331 24 VIETEL-AS-AP - Viettel Group, VN 7713 3724 1044 64 telkomnet-as-ap - PT Telekomunikasi Indon 56046 3544 887 177 CMNET-Jiangsu-AP - China Mobile communica 17561 3383 213 594 LCS-AS-AP - LARUS Limited, HK 45899 3374 1868 100 VNPT-AS-VN - VNPT Corp, VN 24560 2740 745 735 AIRTELBROADBAND-AS-AP - Bharti Airtel Ltd 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 15042 41427 5729 AMAZON-02 - Amazon.com, Inc., US 22773 4765 3115 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4594 305 1088 CABLEONE - CABLE ONE, INC., US 7155 3870 286 90 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3726 1305 74 SHAW - Shaw Communications, CA 396982 3362 4867 512 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3138 54728 2389 DNIC-AS-00749 - United States Department 36352 3074 232 1039 AS-COLOCROSSING - HostPapa, US 7029 2643 2558 897 WINDSTREAM - Windstream Communications LL 30036 2539 352 598 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom C 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 7175 1711 149 UNI2-AS - Orange Espagne SA, ES 39891 4975 307 72 ALJAWWALSTC-AS - Saudi Telecom Company JS 9009 4075 370 2463 M247 - M247 Europe SRL, RO 20940 3773 3389 109 AKAMAI-ASN1 - Akamai International B.V., 12389 3135 2318 867 ROSTELECOM-AS - PJSC Rostelecom, RU 212238 2925 214 2169 CDNEXT - Datacamp Limited, GB 34984 2487 367 582 TELLCOM-AS - Superonline Iletisim Hizmetl 8452 1722 1852 14 TE-AS - IDDQD-AS, EG 203020 1651 252 825 HostRoyale - HostRoyale Technologies Pvt 13188 1607 100 27 TRIOLAN - CONTENT DELIVERY NETWORK LTD, U 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 12759 3254 632 AS8151 - UNINET, MX 10620 3432 450 1101 AS10620 - Telmex Colombia S.A., CO 13999 2347 500 351 AS13999 - Mega Cable, S.A. de C.V., MX 11830 1935 369 65 AS11830 - Instituto Costarricense de Elec 11664 1474 277 34 AS11664 - Techtel LMDS Comunicaciones Int 28573 1363 2430 269 AS28573 - Claro NXT Telecomunicacoes Ltda 3816 1342 770 213 AS3816 - COLOMBIA TELECOMUNICACIONES S.A. 6147 1223 371 22 AS6147 - INTEGRATEL PERU S.A.A., PE 22884 1083 71 364 AS22884 - TOTAL PLAY TELECOMUNICACIONES, 26615 1072 2392 100 AS26615 - TIM 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 2028 649 36 Vodafone Data - Vodafone Data, EG 36992 1860 1532 337 ETISALAT MISR - ETISALAT MISR, EG 36935 1292 523 45 Vodafone Data - Vodafone Data, EG 24863 1268 389 16 Link Egypt (Link.NET) - Link Egypt (Link. 36903 1232 555 98 Office National des Postes et Telecommuni 37069 1117 1100 11 The Egyptian Company for Mobile Services 29571 1085 70 18 Orange Côte d'Ivoire - Orange Côte d'Iv 328608 630 57 174 Africa on Cloud - Africa on Cloud, ZA 20011 589 155 220 Dimension Data - Dimension Data, ZA 36914 554 82 3 Kenya Education Network - Kenya Education 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 15042 41427 5729 AMAZON-02 - Amazon.com, Inc., US 9808 13936 8737 119 CHINAMOBILE-CN - China Mobile Communicati 8151 12759 3254 632 AS8151 - UNINET, MX 12479 7175 1711 149 UNI2-AS - Orange Espagne SA, ES 7545 5876 825 476 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4975 307 72 ALJAWWALSTC-AS - Saudi Telecom Company JS 9498 4942 552 324 BBIL-AP - BHARTI Airtel Ltd., IN 22773 4765 3115 368 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4594 305 1088 CABLEONE - CABLE ONE, INC., US 18403 4555 347 25 FPT-VN - 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 13936 13817 CHINAMOBILE-CN - China Mobile Communications Gr 8151 12759 12127 AS8151 - UNINET, MX 12479 7175 7026 UNI2-AS - Orange Espagne SA, ES 7545 5876 5400 TPG-INTERNET-AP - TPG Telecom Limited, AU 39891 4975 4903 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 9498 4942 4618 BBIL-AP - BHARTI Airtel Ltd., IN 18403 4555 4530 FPT-VN - FPT Telecom Company, VN 22773 4765 4397 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 7552 4065 4041 VIETEL-AS-AP - Viettel Group, VN 7155 3870 3780 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 46198 UNALLOCATED 8.10.6.0/24 23520 LIBERTY-NETWORKS - Colu 46198 UNALLOCATED 8.10.7.0/24 23520 LIBERTY-NETWORKS - Colu 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 400273 UNALLOCATED 8.41.137.0/24 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 Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.100.0/24 Origin: 401541 UNASSIGNED 23.131.100.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.156.0/24 Origin: 401541 UNASSIGNED 23.131.156.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 23.131.212.0/24 Origin: 401541 UNASSIGNED 23.131.212.0/24 Transit: 38733 CMCTELECOM-VN - CMC Telecom Infrastructu 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 - OVH SAS, FR 23.137.200.0/24 Transit: 5511 Opentransit - Orange S.A., FR 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 /10:39 /11:95 /12:298 /13:580 /14:1183 /15:2105 /16:13572 /17:8208 /18:13279 /19:25418 /20:45674 /21:52339 /22:113481 /23:108154 /24:663123 /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 6980 12759 AS8151 - UNINET, MX 12479 6111 7175 UNI2-AS - Orange Espagne SA, ES 39891 3660 4975 ALJAWWALSTC-AS - Saudi Telecom Company JSC, SA 6327 3508 3726 SHAW - Shaw Communications, CA 11492 3470 4594 CABLEONE - CABLE ONE, INC., US 22773 3055 4765 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2825 3870 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2719 15042 AMAZON-02 - Amazon.com, Inc., US 10620 2236 3432 AS10620 - Telmex Colombia S.A., CO 30036 2195 2539 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2512 2:2051 3:998 4:5 5:5196 6:204 7:6 8:1473 9:64 11:172 12:1125 13:701 14:2721 15:467 16:219 17:440 18:919 20:593 21:4 22:188 23:8364 24:2776 25:2 27:2793 28:1 29:19 31:3655 32:36 34:91 35:285 36:4797 37:4457 38:9773 39:1307 40:413 41:4481 42:2165 43:3242 44:448 45:19777 46:4886 47:437 48:158 49:2426 50:2020 51:801 52:1348 54:287 55:1105 56:11 57:323 58:2549 59:1461 60:1167 61:3153 62:3143 63:1672 64:6365 65:2156 66:6135 67:3269 68:1517 69:4226 70:1060 71:608 72:3187 74:3069 75:1501 76:592 77:2949 78:2041 79:1802 80:2346 81:2271 82:4246 83:1455 84:2169 85:3841 86:1100 87:2609 88:1316 89:4765 90:805 91:8468 92:2782 93:3020 94:4409 95:4699 96:1444 97:307 98:941 99:850 100:70 101:1635 102:4642 103:32916 104:5445 105:852 106:900 107:2949 108:1273 109:4275 110:2285 111:4130 112:3163 113:1995 114:2530 115:2299 116:2086 117:3601 118:3047 119:2082 120:2734 121:1552 122:3010 123:2214 124:1711 125:3035 126:158 128:1565 129:963 130:1660 131:2443 132:882 133:490 134:1722 135:607 136:1446 137:1360 138:3372 139:1704 140:1847 141:1784 142:2578 143:2045 144:1784 145:646 146:2178 147:2243 148:2802 149:3183 150:1381 151:2956 152:2588 153:1631 154:9540 155:2296 156:4974 157:2481 158:1578 159:2870 160:3859 161:1988 162:4110 163:2616 164:2421 165:2696 166:1263 167:2349 168:4041 169:869 170:5607 171:1141 172:4854 173:3444 174:890 175:1365 176:3954 177:4969 178:4456 179:2342 180:3293 181:4594 182:4041 183:2856 184:2016 185:21799 186:6224 187:4989 188:4536 189:4522 190:9882 191:1712 192:11627 193:9607 194:7859 195:5820 196:3369 197:3321 198:6097 199:6066 200:8158 201:6451 202:10660 203:10658 204:4771 205:3687 206:4378 207:3831 208:4357 209:5415 210:4719 211:2694 212:5099 213:4102 214:1041 215:47 216:7291 217:3615 218:1764 219:417 220:2220 221:1351 222:939 223:3599 End of report