Routing Table Report 08:00 +10GMT Fri 11 Nov, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 375777
Prefixes after maximum aggregation: 164735
Deaggregation factor: 2.28
Unique aggregates announced to Internet: 187632
Total ASes present in the Internet Routing Table: 37529
Prefixes per ASN: 10.01
Origin-only ASes present in the Internet Routing Table: 32385
Origin ASes announcing only one prefix: 15496
Transit ASes present in the Internet Routing Table: 5144
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2391
Unregistered ASNs in the Routing Table: 940
Number of 32-bit ASNs allocated by the RIRs: 1939
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3708
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 88
Number of addresses announced to Internet: 2507982336
Equivalent to 149 /8s, 124 /16s and 198 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 157231
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90082
Total APNIC prefixes after maximum aggregation: 29810
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87473
Unique aggregates announced from the APNIC address blocks: 38398
APNIC Region origin ASes present in the Internet Routing Table: 4556
APNIC Prefixes per ASN: 19.20
APNIC Region origin ASes announcing only one prefix: 1283
APNIC Region transit ASes present in the Internet Routing Table: 693
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 629694976
Equivalent to 37 /8s, 136 /16s and 98 /24s
Percentage of available APNIC address space announced: 79.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 144998
Total ARIN prefixes after maximum aggregation: 73983
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 117270
Unique aggregates announced from the ARIN address blocks: 48482
ARIN Region origin ASes present in the Internet Routing Table: 14677
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5628
ARIN Region transit ASes present in the Internet Routing Table: 1493
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804262400
Equivalent to 47 /8s, 240 /16s and 18 /24s
Percentage of available ARIN address space announced: 63.9
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, 393216-394239
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,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 173/8,
174/8, 184/8, 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: 92105
Total RIPE prefixes after maximum aggregation: 50982
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 84546
Unique aggregates announced from the RIPE address blocks: 54592
RIPE Region origin ASes present in the Internet Routing Table: 16095
RIPE Prefixes per ASN: 5.25
RIPE Region origin ASes announcing only one prefix: 7982
RIPE Region transit ASes present in the Internet Routing Table: 2512
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 491824384
Equivalent to 29 /8s, 80 /16s and 165 /24s
Percentage of available RIPE address space announced: 79.2
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
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 35622
Total LACNIC prefixes after maximum aggregation: 7843
LACNIC Deaggregation factor: 4.54
Prefixes being announced from the LACNIC address blocks: 35226
Unique aggregates announced from the LACNIC address blocks: 18601
LACNIC Region origin ASes present in the Internet Routing Table: 1530
LACNIC Prefixes per ASN: 23.02
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 267
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 92941824
Equivalent to 5 /8s, 138 /16s and 46 /24s
Percentage of available LACNIC address space announced: 61.6
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8562
Total AfriNIC prefixes after maximum aggregation: 2041
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6648
Unique aggregates announced from the AfriNIC address blocks: 2011
AfriNIC Region origin ASes present in the Internet Routing Table: 495
AfriNIC Prefixes per ASN: 13.43
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 109
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 27669504
Equivalent to 1 /8s, 166 /16s and 52 /24s
Percentage of available AfriNIC address space announced: 41.2
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1946 11105 662 Korea Telecom (KIX)
7545 1622 303 88 TPG Internet Pty Ltd
17974 1597 511 36 PT Telekomunikasi Indonesia
4755 1532 377 172 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1094 80 494 Sify Limited
7552 987 1062 11 Vietel Corporation
4808 977 2009 279 CNCGROUP IP network China169
24560 964 343 218 Bharti Airtel Ltd., Telemedia
18101 953 119 148 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3545 3815 221 BellSouth.net Inc.
7029 2948 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
1785 1850 680 122 PaeTec Communications, Inc.
4323 1621 1093 388 tw telecom holdings, inc.
20115 1595 1546 623 Charter Communications
22773 1494 2909 103 Cox Communications Inc.
30036 1409 254 669 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1325 7063 871 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1341 416 14 Corbina telecom
6830 647 1927 412 UPC Broadband
34984 594 110 183 BILISIM TELEKOM
20940 546 182 432 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3320 504 8168 389 Deutsche Telekom AG
3292 480 2074 408 TDC Data Networks
12479 480 596 9 France Telecom Espana SA
8866 462 133 26 Bulgarian Telecommunication C
31148 408 22 114 FreeNet ISP
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1706 316 157 Types of queries are: POCs, o
28573 1482 1043 79 Types of queries are: POCs, o
8151 1299 2918 341 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 580 72 85 Telconet S.A
6503 555 434 69 Axtel, S.A.B. de C.V.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 542 234 96 Types of queries are: POCs, o
11172 525 102 97 Alestra, S. de R.L. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 790 146 33 LINKdotNET AS number
8452 658 446 12 TEDATA
15475 454 74 8 Nile Online
36992 286 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 197 28 58 Vodacom Internet Company
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3545 3815 221 BellSouth.net Inc.
7029 2948 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications Co.
4766 1946 11105 662 Korea Telecom (KIX)
1785 1850 680 122 PaeTec Communications, Inc.
10620 1706 316 157 Types of queries are: POCs, o
7545 1622 303 88 TPG Internet Pty Ltd
4323 1621 1093 388 tw telecom holdings, inc.
17974 1597 511 36 PT Telekomunikasi Indonesia
20115 1595 1546 623 Charter Communications
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2948 2737 Windstream Communications Inc
18566 2094 1918 Covad Communications Co.
1785 1850 1728 PaeTec Communications, Inc.
17974 1597 1561 PT Telekomunikasi Indonesia
10620 1706 1549 Types of queries are: POCs, o
7545 1622 1534 TPG Internet Pty Ltd
28573 1482 1403 Types of queries are: POCs, o
22773 1494 1391 Cox Communications Inc.
4755 1532 1360 TATA Communications formerly
8402 1341 1327 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/16 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 37345 MEDALLION Communications
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
Complete listing at http://thyme.rand.apnic.net/london/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 /8:20 /9:12 /10:27 /11:81 /12:237
/13:465 /14:806 /15:1418 /16:11976 /17:6052 /18:10038
/19:20074 /20:27599 /21:27652 /22:37151 /23:35035 /24:196597
/25:12 /26:21 /27:22 /28:156 /29:129 /30:63
/31:0 /32:134
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2563 2948 Windstream Communications Inc
6389 2185 3545 BellSouth.net Inc.
18566 2044 2094 Covad Communications Co.
10620 1601 1706 Types of queries are: POCs, o
30036 1369 1409 Mediacom Communications Corp
8402 1317 1341 Corbina telecom
11492 1117 1154 CABLE ONE, INC.
1785 1057 1850 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
22773 956 1494 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:410 2:443 4:15 5:1 6:3 8:356
12:1964 13:1 14:537 15:11 16:3 17:7
20:9 23:63 24:1679 27:1027 31:663 32:60
33:2 34:2 36:4 38:751 40:110 41:2680
42:59 44:3 46:1029 47:3 49:295 50:447
52:13 55:8 56:2 57:43 58:870 59:491
60:358 61:1025 62:1097 63:1961 64:4036 65:2301
66:4309 67:2021 68:1174 69:3139 70:903 71:387
72:1819 74:2631 75:430 76:319 77:881 78:859
79:477 80:1133 81:839 82:521 83:524 84:619
85:1148 86:407 87:936 88:354 89:1577 90:236
91:4263 92:534 93:1524 94:1301 95:1044 96:422
97:286 98:943 99:37 101:111 103:450 106:7
107:91 108:75 109:1166 110:645 111:804 112:353
113:464 114:610 115:684 116:856 117:696 118:873
119:1225 120:346 121:668 122:1567 123:1018 124:1294
125:1301 128:212 129:176 130:158 131:621 132:142
133:21 134:213 135:54 136:210 137:139 138:287
139:119 140:467 141:253 142:370 143:406 144:490
145:64 146:464 147:219 148:617 149:271 150:157
151:194 152:445 153:174 154:6 155:390 156:205
157:328 158:155 159:419 160:331 161:205 162:371
163:164 164:507 165:350 166:543 167:443 168:815
169:144 170:880 171:87 172:4 173:1735 174:703
175:404 176:282 177:374 178:1094 180:1140 181:38
182:643 183:228 184:393 185:1 186:1400 187:778
188:962 189:1153 190:5179 192:5886 193:5047 194:3550
195:3108 196:1251 197:171 198:3568 199:4174 200:5457
201:1692 202:8264 203:8428 204:4246 205:2356 206:2581
207:2752 208:4017 209:3560 210:2648 211:1450 212:2091
213:1807 214:786 215:96 216:4896 217:1602 218:557
219:338 220:1214 221:501 222:296 223:267
End of report
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