This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam'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 21:25 GMT Sat 24 Jan, 2026 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1046001 Prefixes after maximum aggregation (per Origin AS): 396493 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 507517 Number of IPv4 prefixes with a valid ROA: 620600 Number of IPv4 prefixes with an invalid ROA: 18 Number of IPv4 prefixes with no ROA: 425383 Total ASes present in the Internet Routing Table: 77905 Prefixes per ASN: 13.43 Origin-only ASes present in the Internet Routing Table: 66681 Origin ASes announcing only one prefix: 27138 Transit ASes present in the Internet Routing Table: 11224 Transit-only ASes present in the Internet Routing Table: 568 Paths with bogon ASNs present in the IPv4 Routing Table: 82 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 212 Max AS path prepend of ASN (214570) 200 Prefixes from unregistered ASNs in the Routing Table: 1073 Number of instances of unregistered ASNs: 1123 Number of 32-bit ASNs allocated by the RIRs: 48484 Number of 32-bit ASNs visible in the Routing Table: 39746 Prefixes from 32-bit ASNs in the Routing Table: 223209 Number of bogon 32-bit ASNs visible in the Routing Table: 116 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 398 Number of addresses announced to Internet: 3111670693 Equivalent to 185 /8s, 120 /16s and 83 /24s Percentage of available address space announced: 84.0 Percentage of allocated address space announced: 84.0 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: 338424 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 290473 Total APNIC prefixes after maximum aggregation: 82830 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 276823 Unique aggregates announced from the APNIC address blocks: 107176 APNIC Region origin ASes present in the Internet Routing Table: 15088 APNIC Prefixes per ASN: 18.35 APNIC Region origin ASes announcing only one prefix: 4594 APNIC Region transit ASes present in the Internet Routing Table: 2020 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 43 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10607 Number of APNIC addresses announced to Internet: 759090240 Equivalent to 45 /8s, 62 /16s and 204 /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: 303754 Total ARIN prefixes after maximum aggregation: 135327 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 303342 Unique aggregates announced from the ARIN address blocks: 146104 ARIN Region origin ASes present in the Internet Routing Table: 19393 ARIN Prefixes per ASN: 15.64 ARIN Region origin ASes announcing only one prefix: 7069 ARIN Region transit ASes present in the Internet Routing Table: 1983 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5447 Number of ARIN addresses announced to Internet: 1343946496 Equivalent to 80 /8s, 26 /16s and 255 /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: 284635 Total RIPE prefixes after maximum aggregation: 140145 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 286504 Unique aggregates announced from the RIPE address blocks: 184904 RIPE Region origin ASes present in the Internet Routing Table: 29167 RIPE Prefixes per ASN: 9.82 RIPE Region origin ASes announcing only one prefix: 12093 RIPE Region transit ASes present in the Internet Routing Table: 4073 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 212 Number of RIPE region 32-bit ASNs visible in the Routing Table: 12961 Number of RIPE addresses announced to Internet: 734264833 Equivalent to 43 /8s, 195 /16s and 254 /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: 128752 Total LACNIC prefixes after maximum aggregation: 30565 LACNIC Deaggregation factor: 4.21 Prefixes being announced from the LACNIC address blocks: 124325 Unique aggregates announced from the LACNIC address blocks: 49510 LACNIC Region origin ASes present in the Internet Routing Table: 11359 LACNIC Prefixes per ASN: 10.95 LACNIC Region origin ASes announcing only one prefix: 2657 LACNIC Region transit ASes present in the Internet Routing Table: 2560 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9352 Number of LACNIC addresses announced to Internet: 170776160 Equivalent to 10 /8s, 45 /16s and 214 /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: 37314 Total AfriNIC prefixes after maximum aggregation: 6945 AfriNIC Deaggregation factor: 5.37 Prefixes being announced from the AfriNIC address blocks: 54608 Unique aggregates announced from the AfriNIC address blocks: 19509 AfriNIC Region origin ASes present in the Internet Routing Table: 2014 AfriNIC Prefixes per ASN: 27.11 AfriNIC Region origin ASes announcing only one prefix: 725 AfriNIC Region transit ASes present in the Internet Routing Table: 392 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 44 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1379 Number of AfriNIC addresses announced to Internet: 103339520 Equivalent to 6 /8s, 40 /16s and 214 /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 13714 9093 161 CHINAMOBILE-CN China Mobile Communication 7545 6022 833 571 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4836 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4703 543 338 BBIL-AP BHARTI Airtel Ltd., IN 45899 4411 1873 52 VNPT-AS-VN VNPT Corp, VN 18403 4406 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4038 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3731 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3567 853 235 CMNET-JIANGSU-AP China Mobile communicati 17561 3195 200 626 LCS-AS-AP LARUS Limited, HK Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13994 38809 5441 AMAZON-02 - Amazon.com, Inc., US 174 4867 8768 842 COGENT-174 - Cogent Communications, LLC, 22773 4778 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4638 308 1020 CABLEONE - CABLE ONE, INC., US 7155 3858 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3699 1321 71 SHAW - Shaw Communications, CA 396982 3328 4868 498 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54729 2393 DNIC-AS-00749 - United States Department 16625 2850 1227 2138 AKAMAI-AS - Akamai Technologies, Inc., US 36352 2699 222 895 AS-COLOCROSSING - HostPapa, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7238 1711 149 UNI2-AS, ES 39891 4969 306 72 ALJAWWALSTC-AS, SA 9009 3913 366 2237 M247, RO 20940 3866 3394 125 AKAMAI-ASN1, NL 12389 3184 2317 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2564 182 1861 CDNEXT, GB 34984 2425 364 577 TELLCOM-AS, TR 8452 1712 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1594 241 768 HOSTROYALE, IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12664 3297 604 UNINET, MX 10620 3446 457 1108 Telmex Colombia S.A., CO 13999 2484 508 351 Mega Cable, S.A. de C.V., MX 11830 1991 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 1259 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1015 2486 56 TIM SA, BR 18881 909 1127 31 TELEFONICA BRASIL S.A, BR Complete listing at https://bgp.nsrc.org/REN/Guam/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 1842 1532 339 ETISALAT-MISR, EG 24863 1279 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1126 520 42 Vodafone-, EG 37069 1115 1100 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 36914 573 82 3 KENET-AS, KE 328608 569 48 166 Africa-on-Cloud-AS, ZA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13994 38809 5441 AMAZON-02 - Amazon.com, Inc., US 9808 13714 9093 161 CHINAMOBILE-CN China Mobile Communication 8151 12664 3297 604 UNINET, MX 12479 7238 1711 149 UNI2-AS, ES 7545 6022 833 571 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 306 72 ALJAWWALSTC-AS, SA 174 4867 8768 842 COGENT-174 - Cogent Communications, LLC, 4538 4836 4192 76 ERX-CERNET-BKB China Education and Resear 22773 4778 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4703 543 338 BBIL-AP BHARTI Airtel Ltd., IN Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13714 13553 CHINAMOBILE-CN China Mobile Communications Grou 8151 12664 12060 UNINET, MX 12479 7238 7089 UNI2-AS, ES 7545 6022 5451 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4969 4897 ALJAWWALSTC-AS, SA 4538 4836 4760 ERX-CERNET-BKB China Education and Research Net 22773 4778 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 18403 4406 4382 FPT-AS-AP FPT Telecom Company, VN 9498 4703 4365 BBIL-AP BHARTI Airtel Ltd., IN 45899 4411 4359 VNPT-AS-VN VNPT Corp, VN Complete listing at https://bgp.nsrc.org/REN/Guam/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/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 10.2.3.8/30 21996 GUAMCELL - GUAMCELL Communications, US 192.88.99.0/24 6939 HURRICANE - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar 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: 3257 GTT-BACKBONE GTT, US 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 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/Guam/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 /11:93 /12:303 /13:583 /14:1205 /15:2107 /16:13839 /17:8444 /18:14189 /19:25625 /20:46799 /21:53405 /22:114730 /23:108440 /24:655379 /25:151 /26:109 /27:113 /28:40 /29:66 /30:10 /31:3 /32:298 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6842 12664 UNINET, MX 12479 6168 7238 UNI2-AS, ES 39891 3655 4969 ALJAWWALSTC-AS, SA 11492 3498 4638 CABLEONE - CABLE ONE, INC., US 6327 3479 3699 SHAW - Shaw Communications, CA 22773 3050 4778 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2817 3858 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2475 13994 AMAZON-02 - Amazon.com, Inc., US 30036 2306 2647 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2226 3446 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2569 2:1529 3:968 4:11 5:5022 6:186 7:6 8:1544 9:13 11:172 12:1225 13:613 14:2700 15:420 16:179 17:394 18:916 20:606 21:4 22:188 23:8183 24:2627 25:2 27:2881 29:19 31:3442 32:35 34:85 35:293 36:4661 37:4529 38:11016 39:1257 40:437 41:4644 42:1982 43:3068 44:419 45:19884 46:5051 47:421 48:20 49:2229 50:2053 51:598 52:1258 54:238 55:1129 56:11 57:314 58:2431 59:1421 60:1176 61:3269 62:3132 63:1782 64:6208 65:2123 66:6014 67:3257 68:1488 69:4205 70:1023 71:625 72:3056 74:2973 75:1513 76:605 77:2755 78:1925 79:1817 80:2333 81:2151 82:4054 83:1478 84:2028 85:3695 86:1108 87:2410 88:1346 89:4652 90:823 91:8428 92:2856 93:3027 94:4359 95:4544 96:1440 97:313 98:954 99:782 100:69 101:1592 102:4513 103:32719 104:5452 105:1051 106:934 107:2826 108:1227 109:4275 110:2317 111:4119 112:3155 113:1995 114:2188 115:2340 116:2204 117:3320 118:3027 119:2198 120:2652 121:1600 122:3003 123:2423 124:1755 125:3013 126:125 128:1663 129:955 130:1582 131:2332 132:771 133:461 134:1623 135:542 136:1631 137:1308 138:3042 139:1684 140:1793 141:1567 142:2467 143:2168 144:1583 145:632 146:2208 147:2288 148:2811 149:2991 150:1331 151:2643 152:2280 153:924 154:9894 155:2307 156:4861 157:2278 158:1498 159:2756 160:3752 161:2008 162:4039 163:2345 164:1976 165:2648 166:1293 167:2218 168:4004 169:908 170:5541 171:1115 172:4574 173:3437 174:888 175:1378 176:3778 177:4873 178:4341 179:2343 180:3079 181:4529 182:3917 183:2757 184:2016 185:21745 186:5832 187:4930 188:4634 189:4540 190:9815 191:1571 192:11499 193:9503 194:7923 195:5761 196:3293 197:3296 198:6102 199:6114 200:8273 201:6482 202:11095 203:10921 204:4720 205:3707 206:4463 207:3851 208:4393 209:5414 210:5152 211:2875 212:5003 213:4075 214:1063 215:54 216:7159 217:3467 218:1694 219:631 220:2201 221:1315 222:1157 223:3303 End of report