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 31 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: 1048158 Prefixes after maximum aggregation (per Origin AS): 396974 Deaggregation factor: 2.64 Unique aggregates announced (without unneeded subnets): 508220 Number of IPv4 prefixes with a valid ROA: 622278 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 425861 Total ASes present in the Internet Routing Table: 77927 Prefixes per ASN: 13.45 Origin-only ASes present in the Internet Routing Table: 66715 Origin ASes announcing only one prefix: 27165 Transit ASes present in the Internet Routing Table: 11212 Transit-only ASes present in the Internet Routing Table: 563 Paths with bogon ASNs present in the IPv4 Routing Table: 58 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: 1063 Number of instances of unregistered ASNs: 1095 Number of 32-bit ASNs allocated by the RIRs: 48540 Number of 32-bit ASNs visible in the Routing Table: 39777 Prefixes from 32-bit ASNs in the Routing Table: 223646 Number of bogon 32-bit ASNs visible in the Routing Table: 85 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 386 Number of addresses announced to Internet: 3110699173 Equivalent to 185 /8s, 105 /16s and 128 /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: 338723 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 291386 Total APNIC prefixes after maximum aggregation: 82922 APNIC Deaggregation factor: 3.51 Prefixes being announced from the APNIC address blocks: 277756 Unique aggregates announced from the APNIC address blocks: 107257 APNIC Region origin ASes present in the Internet Routing Table: 15108 APNIC Prefixes per ASN: 18.38 APNIC Region origin ASes announcing only one prefix: 4606 APNIC Region transit ASes present in the Internet Routing Table: 2023 Average APNIC Region AS path length visible: 5.5 Max APNIC Region AS path length visible: 54 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10621 Number of APNIC addresses announced to Internet: 759129664 Equivalent to 45 /8s, 63 /16s and 102 /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: 305007 Total ARIN prefixes after maximum aggregation: 135675 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 304371 Unique aggregates announced from the ARIN address blocks: 146332 ARIN Region origin ASes present in the Internet Routing Table: 19391 ARIN Prefixes per ASN: 15.70 ARIN Region origin ASes announcing only one prefix: 7073 ARIN Region transit ASes present in the Internet Routing Table: 1975 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: 5452 Number of ARIN addresses announced to Internet: 1343206912 Equivalent to 80 /8s, 15 /16s and 182 /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: 284834 Total RIPE prefixes after maximum aggregation: 140190 RIPE Deaggregation factor: 2.03 Prefixes being announced from the RIPE address blocks: 286932 Unique aggregates announced from the RIPE address blocks: 185275 RIPE Region origin ASes present in the Internet Routing Table: 29184 RIPE Prefixes per ASN: 9.83 RIPE Region origin ASes announcing only one prefix: 12089 RIPE Region transit ASes present in the Internet Routing Table: 4071 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: 12973 Number of RIPE addresses announced to Internet: 733842177 Equivalent to 43 /8s, 189 /16s and 139 /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: 128500 Total LACNIC prefixes after maximum aggregation: 30562 LACNIC Deaggregation factor: 4.20 Prefixes being announced from the LACNIC address blocks: 124289 Unique aggregates announced from the LACNIC address blocks: 49526 LACNIC Region origin ASes present in the Internet Routing Table: 11357 LACNIC Prefixes per ASN: 10.94 LACNIC Region origin ASes announcing only one prefix: 2675 LACNIC Region transit ASes present in the Internet Routing Table: 2554 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: 170898016 Equivalent to 10 /8s, 47 /16s and 178 /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: 37368 Total AfriNIC prefixes after maximum aggregation: 6948 AfriNIC Deaggregation factor: 5.38 Prefixes being announced from the AfriNIC address blocks: 54423 Unique aggregates announced from the AfriNIC address blocks: 19531 AfriNIC Region origin ASes present in the Internet Routing Table: 2013 AfriNIC Prefixes per ASN: 27.04 AfriNIC Region origin ASes announcing only one prefix: 722 AfriNIC Region transit ASes present in the Internet Routing Table: 394 Average AfriNIC Region AS path length visible: 6.1 Max AfriNIC Region AS path length visible: 53 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1379 Number of AfriNIC addresses announced to Internet: 103375872 Equivalent to 6 /8s, 41 /16s and 100 /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 13807 9093 161 CHINAMOBILE-CN China Mobile Communication 7545 6017 832 567 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4844 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4727 544 337 BBIL-AP BHARTI Airtel Ltd., IN 45899 4408 1873 52 VNPT-AS-VN VNPT Corp, VN 18403 4402 347 24 FPT-AS-AP FPT Telecom Company, VN 7552 4038 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3728 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3569 853 235 CMNET-JIANGSU-AP China Mobile communicati 17561 3139 197 620 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 14095 38819 5519 AMAZON-02 - Amazon.com, Inc., US 174 5425 8768 851 COGENT-174 - Cogent Communications, LLC, 22773 4778 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4637 308 1020 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3699 1321 71 SHAW - Shaw Communications, CA 396982 3320 4866 494 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3142 54728 2393 DNIC-AS-00749 - United States Department 16625 2848 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 7240 1711 149 UNI2-AS, ES 39891 4901 302 71 ALJAWWALSTC-AS, SA 9009 3901 365 2230 M247, RO 20940 3852 3394 125 AKAMAI-ASN1, NL 12389 3184 2317 872 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2563 182 1862 CDNEXT, GB 34984 2434 366 578 TELLCOM-AS, TR 8452 1713 1852 14 TE-AS TE-AS, EG 13188 1607 100 27 TRIOLAN, UA 203020 1597 241 769 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 12687 3298 607 UNINET, MX 10620 3445 457 1107 Telmex Colombia S.A., CO 13999 2483 506 350 Mega Cable, S.A. de C.V., MX 11830 1990 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 1256 371 22 INTEGRATEL PERU S.A.A., PE 22884 1056 67 358 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 26615 1016 2486 57 TIM SA, BR 18881 915 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 1843 1532 339 ETISALAT-MISR, EG 24863 1278 389 16 LINKdotNET-AS, EG 36903 1232 555 98 MT-MPLS, MA 36935 1146 524 47 Vodafone-, EG 37069 1115 1100 11 MOBINIL, EG 29571 1070 78 20 ORANGE-COTE-IVOIRE, CI 20011 580 154 212 NTT-DATA-Inc, ZA 328608 569 48 166 Africa-on-Cloud-AS, ZA 36914 566 82 3 KENET-AS, KE 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 14095 38819 5519 AMAZON-02 - Amazon.com, Inc., US 9808 13807 9093 161 CHINAMOBILE-CN China Mobile Communication 8151 12687 3298 607 UNINET, MX 12479 7240 1711 149 UNI2-AS, ES 7545 6017 832 567 TPG-INTERNET-AP TPG Telecom Limited, AU 174 5425 8768 851 COGENT-174 - Cogent Communications, LLC, 39891 4901 302 71 ALJAWWALSTC-AS, SA 4538 4844 4192 76 ERX-CERNET-BKB China Education and Resear 22773 4778 3100 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 9498 4727 544 337 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 13807 13646 CHINAMOBILE-CN China Mobile Communications Grou 8151 12687 12080 UNINET, MX 12479 7240 7091 UNI2-AS, ES 7545 6017 5450 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4901 4830 ALJAWWALSTC-AS, SA 4538 4844 4768 ERX-CERNET-BKB China Education and Research Net 174 5425 4574 COGENT-174 - Cogent Communications, LLC, US 22773 4778 4414 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 9498 4727 4390 BBIL-AP BHARTI Airtel Ltd., IN 18403 4402 4378 FPT-AS-AP FPT Telecom Company, 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 /14:1201 /15:2102 /16:13824 /17:8457 /18:14161 /19:25609 /20:47044 /21:53375 /22:114843 /23:108619 /24:657112 /25:128 /26:113 /27:113 /28:40 /29:66 /30:10 /31:3 /32:289 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 6857 12687 UNINET, MX 12479 6168 7240 UNI2-AS, ES 39891 3651 4901 ALJAWWALSTC-AS, SA 11492 3497 4637 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 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2511 14095 AMAZON-02 - Amazon.com, Inc., US 30036 2315 2660 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2225 3445 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) ---------------------------------------------- 1:2576 2:1534 3:984 4:11 5:5103 6:185 7:6 8:1542 9:14 11:172 12:1226 13:619 14:2702 15:420 16:179 17:395 18:918 20:606 21:4 22:188 23:8174 24:2625 25:2 27:2881 29:19 31:3449 32:35 34:85 35:295 36:4754 37:4518 38:11520 39:1261 40:439 41:4634 42:1989 43:3075 44:416 45:19914 46:5023 47:421 48:38 49:2237 50:2057 51:598 52:1256 54:238 55:1120 56:11 57:319 58:2529 59:1429 60:1176 61:3320 62:3133 63:1778 64:6205 65:2104 66:6030 67:3253 68:1494 69:4198 70:1029 71:624 72:3069 74:2981 75:1509 76:596 77:2699 78:1930 79:1823 80:2338 81:2181 82:4032 83:1474 84:2030 85:3707 86:1109 87:2413 88:1347 89:4665 90:825 91:8445 92:2867 93:3021 94:4392 95:4565 96:1446 97:313 98:949 99:782 100:69 101:1592 102:4550 103:32738 104:5398 105:1062 106:936 107:2836 108:1226 109:4258 110:2314 111:4138 112:3155 113:2005 114:2197 115:2344 116:2219 117:3401 118:3034 119:2194 120:2729 121:1603 122:3003 123:2415 124:1761 125:3016 126:125 128:1671 129:947 130:1585 131:2377 132:773 133:461 134:1628 135:544 136:1634 137:1379 138:3011 139:1690 140:1801 141:1570 142:2476 143:2176 144:1614 145:628 146:2210 147:2287 148:2785 149:3010 150:1328 151:2682 152:2291 153:969 154:9918 155:2301 156:4629 157:2274 158:1506 159:2756 160:3752 161:2004 162:4058 163:2349 164:1979 165:2650 166:1292 167:2226 168:4003 169:914 170:5558 171:1117 172:4570 173:3448 174:889 175:1389 176:3786 177:4882 178:4389 179:2342 180:3066 181:4526 182:3930 183:2853 184:2020 185:21763 186:5844 187:4940 188:4635 189:4543 190:9804 191:1579 192:11519 193:9523 194:7921 195:5746 196:3272 197:3331 198:6121 199:6115 200:8267 201:6451 202:11092 203:10924 204:4707 205:3727 206:4504 207:3845 208:4382 209:5420 210:5149 211:2879 212:5007 213:4061 214:1074 215:54 216:7160 217:3489 218:1755 219:636 220:2195 221:1330 222:1209 223:3321 End of report