This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from RENU's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . IPv4 R&E Routing Table Report 18:40 GMT Sat 18 Jan, 2025 IPv4 BGP Table (Global) as seen at RENU. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/RENU/ Analysis Summary ---------------- BGP routing table entries examined: 988537 Prefixes after maximum aggregation (per Origin AS): 370637 Deaggregation factor: 2.67 Unique aggregates announced (without unneeded subnets): 472005 Number of IPv4 prefixes with a valid ROA: 533542 Number of IPv4 prefixes with an invalid ROA: 769 Number of IPv4 prefixes with no ROA: 454226 Total ASes present in the Internet Routing Table: 76484 Prefixes per ASN: 12.92 Origin-only ASes present in the Internet Routing Table: 65752 Origin ASes announcing only one prefix: 26470 Transit ASes present in the Internet Routing Table: 10732 Transit-only ASes present in the Internet Routing Table: 520 Paths with bogon ASNs present in the IPv4 Routing Table: 30 Average AS path length visible in the Internet Routing Table: 7.2 Max AS path length visible: 58 Max AS path prepend of ASN (153261) 50 Prefixes from unregistered ASNs in the Routing Table: 1102 Number of instances of unregistered ASNs: 1109 Number of 32-bit ASNs allocated by the RIRs: 46101 Number of 32-bit ASNs visible in the Routing Table: 37662 Prefixes from 32-bit ASNs in the Routing Table: 203414 Number of bogon 32-bit ASNs visible in the Routing Table: 29 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 530 Number of addresses announced to Internet: 3118882560 Equivalent to 185 /8s, 230 /16s and 95 /24s Percentage of available address space announced: 84.2 Percentage of allocated address space announced: 84.2 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: 325674 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 256239 Total APNIC prefixes after maximum aggregation: 75974 APNIC Deaggregation factor: 3.37 Prefixes being announced from the APNIC address blocks: 248127 Unique aggregates announced from the APNIC address blocks: 102346 APNIC Region origin ASes present in the Internet Routing Table: 14424 APNIC Prefixes per ASN: 17.20 APNIC Region origin ASes announcing only one prefix: 4410 APNIC Region transit ASes present in the Internet Routing Table: 1897 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 57 Number of APNIC region 32-bit ASNs visible in the Routing Table: 9942 Number of APNIC addresses announced to Internet: 757066496 Equivalent to 45 /8s, 31 /16s and 235 /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, 131072-153913 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: 288891 Total ARIN prefixes after maximum aggregation: 126761 ARIN Deaggregation factor: 2.28 Prefixes being announced from the ARIN address blocks: 290732 Unique aggregates announced from the ARIN address blocks: 134198 ARIN Region origin ASes present in the Internet Routing Table: 19179 ARIN Prefixes per ASN: 15.16 ARIN Region origin ASes announcing only one prefix: 7009 ARIN Region transit ASes present in the Internet Routing Table: 1933 Average ARIN Region AS path length visible: 6.9 Max ARIN Region AS path length visible: 27 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5107 Number of ARIN addresses announced to Internet: 1346339072 Equivalent to 80 /8s, 63 /16s and 129 /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: 273784 Total RIPE prefixes after maximum aggregation: 131403 RIPE Deaggregation factor: 2.08 Prefixes being announced from the RIPE address blocks: 270705 Unique aggregates announced from the RIPE address blocks: 170923 RIPE Region origin ASes present in the Internet Routing Table: 28857 RIPE Prefixes per ASN: 9.38 RIPE Region origin ASes announcing only one prefix: 12048 RIPE Region transit ASes present in the Internet Routing Table: 3889 Average RIPE Region AS path length visible: 6.9 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12211 Number of RIPE addresses announced to Internet: 733138944 Equivalent to 43 /8s, 178 /16s and 208 /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: 132148 Total LACNIC prefixes after maximum aggregation: 29047 LACNIC Deaggregation factor: 4.55 Prefixes being announced from the LACNIC address blocks: 129358 Unique aggregates announced from the LACNIC address blocks: 48835 LACNIC Region origin ASes present in the Internet Routing Table: 11197 LACNIC Prefixes per ASN: 11.55 LACNIC Region origin ASes announcing only one prefix: 2349 LACNIC Region transit ASes present in the Internet Routing Table: 2478 Average LACNIC Region AS path length visible: 7.7 Max LACNIC Region AS path length visible: 58 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9129 Number of LACNIC addresses announced to Internet: 177502976 Equivalent to 10 /8s, 148 /16s and 123 /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: 36373 Total AfriNIC prefixes after maximum aggregation: 6756 AfriNIC Deaggregation factor: 5.38 Prefixes being announced from the AfriNIC address blocks: 49085 Unique aggregates announced from the AfriNIC address blocks: 15277 AfriNIC Region origin ASes present in the Internet Routing Table: 1915 AfriNIC Prefixes per ASN: 25.63 AfriNIC Region origin ASes announcing only one prefix: 654 AfriNIC Region transit ASes present in the Internet Routing Table: 370 Average AfriNIC Region AS path length visible: 6.8 Max AfriNIC Region AS path length visible: 39 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1273 Number of AfriNIC addresses announced to Internet: 104573696 Equivalent to 6 /8s, 59 /16s and 171 /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 10310 8753 87 CHINAMOBILE-CN China Mobile Communication 7545 6193 842 660 TPG-INTERNET-AP TPG Telecom Limited, AU 18403 4268 347 23 FPT-AS-AP FPT Telecom Company, VN 9498 4112 526 278 BBIL-AP BHARTI Airtel Ltd., IN 7552 3912 1331 25 VIETEL-AS-AP Viettel Group, VN 7713 3676 1036 72 TELKOMNET-AS-AP PT Telekomunikasi Indones 45899 3251 1869 101 VNPT-AS-VN VNPT Corp, VN 24560 2823 846 547 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 4755 2204 434 189 TATACOMM-AS TATA Communications formerly 45090 2171 1439 86 TENCENT-NET-AP Shenzhen Tencent Computer Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12578 38854 3695 AMAZON-02, US 174 6049 8761 886 COGENT-174, US 11492 4696 312 551 CABLEONE, US 7155 4176 287 86 VIASAT-SP-BACKBONE, US 6327 3614 1320 81 SHAW, CA 22773 3383 3033 185 ASN-CXA-ALL-CCI-22773-RDC, US 749 3261 54895 2508 DNIC-AS-00749, US 16625 2971 1282 2177 AKAMAI-AS, US 396982 2899 3657 442 GOOGLE-CLOUD-PLATFORM, US 30036 2578 360 270 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7648 1709 143 UNI2-AS, ES 39891 4750 290 62 ALJAWWALSTC-AS, SA 20940 4001 3395 127 AKAMAI-ASN1, NL 9009 3742 321 1901 M247, RO 12389 2977 2301 888 ROSTELECOM-AS, RU 34984 2370 361 578 TELLCOM-AS, TR 212238 1895 135 1400 CDNEXT, GB 8452 1615 1852 14 TE-AS TE-AS, EG 13188 1607 100 26 TRIOLAN, UA 62240 1498 99 751 CLOUVIDER Clouvider - Global ASN, GB Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11670 3228 603 UNINET, MX 10620 3539 492 954 Telmex Colombia S.A., CO 13999 2535 538 368 Mega Cable, S.A. de C.V., MX 11830 1992 369 64 Instituto Costarricense de Electricidad y 28573 1335 2438 262 Claro NXT Telecomunicacoes Ltda, BR 3816 1329 778 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6503 1170 374 163 Axtel, S.A.B. de C.V., MX 11664 1153 278 33 Techtel LMDS Comunicaciones Interactivas 28202 1126 52 9 Rede Brasileira de Comunicacao SA, BR 6147 1112 371 22 Telefonica del Peru S.A.A., PE Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1683 601 30 RAYA-AS, EG 24863 1648 389 18 LINKdotNET-AS, EG 29571 1541 97 109 ORANGE-COTE-IVOIRE, CI 36992 1425 1518 286 ETISALAT-MISR, EG 36903 1249 554 96 MT-MPLS, MA 20011 1236 193 304 INTERNET-SOLUTIONS, ZA 36935 1002 521 42 Vodafone-, EG 37069 832 1083 15 MOBINIL, EG 6713 557 1861 35 IAM-AS, MA 36914 548 82 3 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 12578 38854 3695 AMAZON-02, US 8151 11670 3228 603 UNINET, MX 9808 10310 8753 87 CHINAMOBILE-CN China Mobile Communication 12479 7648 1709 143 UNI2-AS, ES 7545 6193 842 660 TPG-INTERNET-AP TPG Telecom Limited, AU 174 6049 8761 886 COGENT-174, US 39891 4750 290 62 ALJAWWALSTC-AS, SA 11492 4696 312 551 CABLEONE, US 18403 4268 347 23 FPT-AS-AP FPT Telecom Company, VN 7155 4176 287 86 VIASAT-SP-BACKBONE, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 8151 11670 11067 UNINET, MX 9808 10310 10223 CHINAMOBILE-CN China Mobile Communications Grou 12479 7648 7505 UNI2-AS, ES 7545 6193 5533 TPG-INTERNET-AP TPG Telecom Limited, AU 174 6049 5163 COGENT-174, US 39891 4750 4688 ALJAWWALSTC-AS, SA 18403 4268 4245 FPT-AS-AP FPT Telecom Company, VN 11492 4696 4145 CABLEONE, US 7155 4176 4090 VIASAT-SP-BACKBONE, US 7552 3912 3887 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/RENU/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 400866 UNALLOCATED 2.59.148.0/23 21859 ZEN-ECN, US 46559 UNALLOCATED 8.3.52.0/23 3257 GTT-BACKBONE GTT, US 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 33123 UNALLOCATED 8.10.69.0/24 174 COGENT-174, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-D 40493 UNALLOCATED 8.17.26.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/RENU/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 14.192.20.0/22 Origin: 26658 HENGTONG-IDC-LLC, US 14.192.20.0/22 Transit: 6939 HURRICANE, US 23.132.192.0/24 Origin: 30500 WOLFPAWSERVICES, CA 23.132.192.0/24 Transit: 6939 HURRICANE, US 23.140.16.0/24 Origin: 63371 RESERVED, ZZ 23.140.16.0/24 Transit: 3356 LEVEL3, US 23.140.48.0/24 Origin: 63371 RESERVED, ZZ 23.140.48.0/24 Transit: 7018 ATT-INTERNET4, US 23.140.176.0/24 Origin: 40676 AS40676, US 23.140.176.0/24 Transit: 7922 COMCAST-7922, US Complete listing at https://bgp.nsrc.org/REN/RENU/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 /9:16 /10:42 /11:93 /12:311 /13:590 /14:1233 /15:2192 /16:14049 /17:8307 /18:13871 /19:24761 /20:44383 /21:52684 /22:113265 /23:104531 /24:608193 /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 12479 6612 7648 UNI2-AS, ES 8151 5840 11670 UNINET, MX 11492 3555 4696 CABLEONE, US 39891 3441 4750 ALJAWWALSTC-AS, SA 6327 3410 3614 SHAW, CA 7155 3124 4176 VIASAT-SP-BACKBONE, US 22773 2519 3383 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2252 12578 AMAZON-02, US 30036 2239 2578 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2179 3539 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/RENU/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2287 2:1569 3:547 4:9 5:4790 6:165 7:6 8:1552 9:1 11:172 12:1387 13:353 14:2491 15:336 16:270 17:360 18:903 20:457 21:4 22:188 23:7256 24:2771 25:2 27:2707 29:19 31:3127 32:46 34:74 35:184 36:2408 37:4564 38:10354 39:895 40:154 41:4399 42:1958 43:2541 44:348 45:18894 46:4989 47:293 49:2009 50:1866 51:587 52:1572 54:307 55:1027 56:8 57:245 58:2214 59:1187 60:1160 61:2891 62:3001 63:1853 64:5416 65:2219 66:4695 67:3049 68:1168 69:4035 70:1105 71:612 72:2926 74:2803 75:1640 76:631 77:2719 78:1858 79:1718 80:2231 81:2071 82:1898 83:1421 84:1792 85:3287 86:988 87:2446 88:1295 89:4362 90:752 91:8408 92:2758 93:2886 94:3855 95:4182 96:1270 97:309 98:982 99:737 100:71 101:1375 102:3895 103:32427 104:4607 105:1114 106:1021 107:2604 108:1189 109:4098 110:2225 111:3310 112:2049 113:1804 114:1940 115:2221 116:2042 117:2689 118:2786 119:1966 120:1874 121:1357 122:2753 123:2177 124:1587 125:2849 126:61 128:1616 129:1016 130:1280 131:1916 132:812 133:450 134:1507 135:368 136:1345 137:1106 138:3059 139:1567 140:1517 141:1607 142:1827 143:1619 144:1017 145:475 146:2140 147:2047 148:2598 149:2903 150:1201 151:1637 152:2104 153:569 154:8029 155:1550 156:3356 157:1875 158:1252 159:2431 160:3566 161:1830 162:3659 163:1792 164:1711 165:2176 166:1332 167:1883 168:4262 169:793 170:5263 171:1000 172:4027 173:3205 174:917 175:1286 176:3635 177:5616 178:3828 179:2376 180:2581 181:4102 182:3360 183:2044 184:2274 185:21562 186:5423 187:4697 188:4279 189:4307 190:9791 191:1975 192:11246 193:9388 194:7768 195:5544 196:3454 197:3637 198:6064 199:8312 200:8591 201:6417 202:10441 203:10667 204:4556 205:3653 206:4641 207:3499 208:4224 209:5138 210:4603 211:2518 212:4541 213:3797 214:1051 215:42 216:6617 217:3152 218:1353 219:384 220:2095 221:1056 222:717 223:2307 End of report