Routing Table Report 08:00 +10GMT Thu 20 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 372323
Prefixes after maximum aggregation: 167732
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 185313
Total ASes present in the Internet Routing Table: 37434
Prefixes per ASN: 9.95
Origin-only ASes present in the Internet Routing Table: 32296
Origin ASes announcing only one prefix: 15520
Transit ASes present in the Internet Routing Table: 5138
Transit-only ASes present in the Internet Routing Table: 127
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (51310) 25
Prefixes from unregistered ASNs in the Routing Table: 2220
Unregistered ASNs in the Routing Table: 886
Number of 32-bit ASNs allocated by the RIRs: 1870
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3493
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 90
Number of addresses announced to Internet: 2502040576
Equivalent to 149 /8s, 34 /16s and 28 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 155232
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89483
Total APNIC prefixes after maximum aggregation: 29618
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86897
Unique aggregates announced from the APNIC address blocks: 38004
APNIC Region origin ASes present in the Internet Routing Table: 4536
APNIC Prefixes per ASN: 19.16
APNIC Region origin ASes announcing only one prefix: 1276
APNIC Region transit ASes present in the Internet Routing Table: 691
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: 628404224
Equivalent to 37 /8s, 116 /16s and 176 /24s
Percentage of available APNIC address space announced: 79.7
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: 144440
Total ARIN prefixes after maximum aggregation: 73884
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116667
Unique aggregates announced from the ARIN address blocks: 47951
ARIN Region origin ASes present in the Internet Routing Table: 14671
ARIN Prefixes per ASN: 7.95
ARIN Region origin ASes announcing only one prefix: 5660
ARIN Region transit ASes present in the Internet Routing Table: 1492
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: 804740864
Equivalent to 47 /8s, 247 /16s and 95 /24s
Percentage of available ARIN address space announced: 64.0
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: 91108
Total RIPE prefixes after maximum aggregation: 50596
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 83771
Unique aggregates announced from the RIPE address blocks: 54185
RIPE Region origin ASes present in the Internet Routing Table: 16042
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7984
RIPE Region transit ASes present in the Internet Routing Table: 2522
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 490929664
Equivalent to 29 /8s, 66 /16s and 254 /24s
Percentage of available RIPE address space announced: 79.1
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: 34598
Total LACNIC prefixes after maximum aggregation: 7791
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 34166
Unique aggregates announced from the LACNIC address blocks: 17956
LACNIC Region origin ASes present in the Internet Routing Table: 1527
LACNIC Prefixes per ASN: 22.37
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 91170816
Equivalent to 5 /8s, 111 /16s and 40 /24s
Percentage of available LACNIC address space announced: 60.4
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: 8511
Total AfriNIC prefixes after maximum aggregation: 2011
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6602
Unique aggregates announced from the AfriNIC address blocks: 1966
AfriNIC Region origin ASes present in the Internet Routing Table: 486
AfriNIC Prefixes per ASN: 13.58
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 105
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: 27831296
Equivalent to 1 /8s, 168 /16s and 172 /24s
Percentage of available AfriNIC address space announced: 41.5
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 1937 11087 656 Korea Telecom (KIX)
7545 1607 303 86 TPG Internet Pty Ltd
17974 1604 512 38 PT Telekomunikasi Indonesia
4755 1529 379 172 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1086 80 502 Sify Limited
7552 983 1062 11 Vietel Corporation
24560 973 341 224 Bharti Airtel Ltd., Telemedia
4808 966 2007 274 CNCGROUP IP network China169
18101 954 166 149 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 3547 3815 222 BellSouth.net Inc.
7029 2285 1042 210 Windstream Communications Inc
18566 2097 382 176 Covad Communications Co.
1785 1841 680 122 PaeTec Communications, Inc.
4323 1629 1099 393 tw telecom holdings, inc.
20115 1590 1544 626 Charter Communications
22773 1461 2907 100 Cox Communications Inc.
19262 1395 4728 400 Verizon Online LLC
30036 1393 251 671 Mediacom Communications Corp
7018 1349 7112 858 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 1497 352 13 Corbina telecom
6830 652 1927 415 UPC Broadband
34984 583 108 179 BILISIM TELEKOM
20940 547 182 421 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3320 503 8169 383 Deutsche Telekom AG
3292 484 2080 411 TDC Data Networks
12479 482 593 7 France Telecom Espana SA
8866 458 133 26 Bulgarian Telecommunication C
29049 423 31 55 AzerSat LLC.
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 1685 311 157 Types of queries are: POCs, o
28573 1433 1032 69 Types of queries are: POCs, o
8151 1286 2860 346 Uninet S.A. de C.V.
7303 1165 684 176 Telecom Argentina S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 569 72 79 Telconet S.A
6503 558 450 70 Axtel, S.A.B. de C.V.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 540 233 96 Types of queries are: POCs, o
11172 521 101 96 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 774 146 33 LINKdotNET AS number
8452 649 446 12 TEDATA
15475 454 74 8 Nile Online
36992 300 415 21 Etisalat MISR
3741 279 938 230 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
29571 217 17 13 Ci Telecom Autonomous system
33776 207 13 14 Starcomms Nigeria Limited
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 3547 3815 222 BellSouth.net Inc.
7029 2285 1042 210 Windstream Communications Inc
18566 2097 382 176 Covad Communications Co.
4766 1937 11087 656 Korea Telecom (KIX)
1785 1841 680 122 PaeTec Communications, Inc.
10620 1685 311 157 Types of queries are: POCs, o
4323 1629 1099 393 tw telecom holdings, inc.
7545 1607 303 86 TPG Internet Pty Ltd
17974 1604 512 38 PT Telekomunikasi Indonesia
20115 1590 1544 626 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 2285 2075 Windstream Communications Inc
18566 2097 1921 Covad Communications Co.
1785 1841 1719 PaeTec Communications, Inc.
17974 1604 1566 PT Telekomunikasi Indonesia
10620 1685 1528 Types of queries are: POCs, o
7545 1607 1521 TPG Internet Pty Ltd
8402 1497 1484 Corbina telecom
28573 1433 1364 Types of queries are: POCs, o
22773 1461 1361 Cox Communications Inc.
4755 1529 1357 TATA Communications formerly
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
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
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
64.21.192.0/20 11610 Internet Nebraska Corporation
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 /12:236
/13:464 /14:805 /15:1420 /16:11964 /17:6021 /18:9982
/19:20059 /20:27334 /21:27273 /22:36630 /23:34766 /24:194704
/25:12 /26:20 /27:22 /28:154 /29:125 /30:63
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2185 3547 BellSouth.net Inc.
18566 2047 2097 Covad Communications Co.
7029 1943 2285 Windstream Communications Inc
10620 1580 1685 Types of queries are: POCs, o
8402 1473 1497 Corbina telecom
30036 1355 1393 Mediacom Communications Corp
11492 1118 1155 CABLE ONE, INC.
1785 1057 1841 PaeTec Communications, Inc.
7011 1047 1165 Frontier Communications of Am
22773 949 1461 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:404 2:485 4:15 5:1 6:3 8:357
12:1954 13:1 14:531 15:11 16:3 17:7
20:9 23:58 24:1673 27:961 31:601 32:60
33:4 34:2 36:4 38:748 40:110 41:2670
42:53 44:3 46:1001 47:3 49:293 50:438
52:13 55:6 56:2 57:36 58:834 59:487
60:360 61:1026 62:1090 63:1930 64:4055 65:2302
66:4270 67:1957 68:1146 69:3234 70:887 71:376
72:1863 74:2581 75:386 76:345 77:885 78:866
79:478 80:1142 81:818 82:507 83:529 84:623
85:1124 86:410 87:885 88:356 89:1574 90:269
91:4213 92:497 93:1539 94:1302 95:1053 96:431
97:283 98:910 99:37 101:92 103:371 106:70
107:72 108:70 109:1044 110:648 111:784 112:325
113:466 114:599 115:675 116:865 117:697 118:859
119:1198 120:337 121:678 122:1561 123:1017 124:1300
125:1327 128:209 129:174 130:159 131:590 132:136
133:21 134:211 135:54 136:211 137:137 138:286
139:116 140:467 141:297 142:365 143:439 144:491
145:63 146:461 147:214 148:620 149:266 150:159
151:192 152:445 153:178 154:6 155:385 156:203
157:329 158:152 159:410 160:323 161:204 162:337
163:162 164:505 165:365 166:536 167:440 168:734
169:143 170:872 171:85 172:4 173:1691 174:680
175:416 176:283 177:337 178:1040 180:1080 181:36
182:631 183:210 184:374 185:1 186:1279 187:703
188:933 189:874 190:5096 192:5867 193:5033 194:3555
195:3106 196:1255 197:164 198:3567 199:4133 200:5438
201:1655 202:8276 203:8384 204:4223 205:2346 206:2588
207:2759 208:4052 209:3569 210:2617 211:1449 212:2070
213:1735 214:784 215:91 216:4962 217:1607 218:556
219:335 220:1202 221:499 222:298 223:274
End of report
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