Routing Table Report 08:00 +10GMT Fri 28 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 373072
Prefixes after maximum aggregation: 164242
Deaggregation factor: 2.27
Unique aggregates announced to Internet: 186080
Total ASes present in the Internet Routing Table: 37464
Prefixes per ASN: 9.96
Origin-only ASes present in the Internet Routing Table: 32315
Origin ASes announcing only one prefix: 15509
Transit ASes present in the Internet Routing Table: 5149
Transit-only ASes present in the Internet Routing Table: 129
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: 2315
Unregistered ASNs in the Routing Table: 910
Number of 32-bit ASNs allocated by the RIRs: 1905
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3626
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 92
Number of addresses announced to Internet: 2506114816
Equivalent to 149 /8s, 96 /16s and 71 /24s
Percentage of available address space announced: 67.6
Percentage of allocated address space announced: 67.6
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: 155438
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89620
Total APNIC prefixes after maximum aggregation: 29671
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 87033
Unique aggregates announced from the APNIC address blocks: 38098
APNIC Region origin ASes present in the Internet Routing Table: 4546
APNIC Prefixes per ASN: 19.14
APNIC Region origin ASes announcing only one prefix: 1280
APNIC Region transit ASes present in the Internet Routing Table: 695
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: 629042432
Equivalent to 37 /8s, 126 /16s and 109 /24s
Percentage of available APNIC address space announced: 79.8
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: 144355
Total ARIN prefixes after maximum aggregation: 73935
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116573
Unique aggregates announced from the ARIN address blocks: 48282
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: 5654
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: 804720640
Equivalent to 47 /8s, 247 /16s and 16 /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: 91330
Total RIPE prefixes after maximum aggregation: 50732
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 83958
Unique aggregates announced from the RIPE address blocks: 54220
RIPE Region origin ASes present in the Internet Routing Table: 16050
RIPE Prefixes per ASN: 5.23
RIPE Region origin ASes announcing only one prefix: 7973
RIPE Region transit ASes present in the Internet Routing Table: 2514
Average RIPE Region AS path length visible: 3.4
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: 491174144
Equivalent to 29 /8s, 70 /16s and 185 /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: 34923
Total LACNIC prefixes after maximum aggregation: 7811
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 34531
Unique aggregates announced from the LACNIC address blocks: 18136
LACNIC Region origin ASes present in the Internet Routing Table: 1527
LACNIC Prefixes per ASN: 22.61
LACNIC Region origin ASes announcing only one prefix: 444
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: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 92555264
Equivalent to 5 /8s, 132 /16s and 72 /24s
Percentage of available LACNIC address space announced: 61.3
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: 8527
Total AfriNIC prefixes after maximum aggregation: 2016
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6643
Unique aggregates announced from the AfriNIC address blocks: 1983
AfriNIC Region origin ASes present in the Internet Routing Table: 496
AfriNIC Prefixes per ASN: 13.39
AfriNIC Region origin ASes announcing only one prefix: 158
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: 27904256
Equivalent to 1 /8s, 169 /16s and 201 /24s
Percentage of available AfriNIC address space announced: 41.6
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 1941 11088 658 Korea Telecom (KIX)
17974 1627 511 36 PT Telekomunikasi Indonesia
7545 1611 303 87 TPG Internet Pty Ltd
4755 1534 377 174 TATA Communications formerly
9829 1166 989 28 National Internet Backbone
9583 1091 80 499 Sify Limited
7552 986 1062 11 Vietel Corporation
4808 973 2009 278 CNCGROUP IP network China169
24560 964 342 218 Bharti Airtel Ltd., Telemedia
18101 954 166 150 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 3546 3815 221 BellSouth.net Inc.
7029 2362 1042 210 Windstream Communications Inc
18566 2096 382 176 Covad Communications Co.
1785 1843 680 122 PaeTec Communications, Inc.
4323 1623 1094 389 tw telecom holdings, inc.
20115 1594 1546 620 Charter Communications
22773 1457 2907 100 Cox Communications Inc.
19262 1395 4728 400 Verizon Online LLC
30036 1390 252 670 Mediacom Communications Corp
7018 1326 7063 870 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 1480 352 13 Corbina telecom
6830 649 1927 412 UPC Broadband
34984 589 108 179 BILISIM TELEKOM
20940 554 184 427 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3320 504 8169 384 Deutsche Telekom AG
3292 480 2074 407 TDC Data Networks
12479 479 596 9 France Telecom Espana SA
8866 460 133 26 Bulgarian Telecommunication C
8551 404 355 38 Bezeq International
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 1699 314 156 Types of queries are: POCs, o
28573 1458 1033 70 Types of queries are: POCs, o
8151 1279 2908 341 Uninet S.A. de C.V.
7303 1229 747 177 Telecom Argentina S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 577 72 84 Telconet S.A
6503 560 450 70 Axtel, S.A.B. de C.V.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 541 233 95 Types of queries are: POCs, o
11172 524 102 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 798 146 33 LINKdotNET AS number
8452 651 446 12 TEDATA
15475 454 74 8 Nile Online
36992 299 415 21 Etisalat MISR
3741 280 939 229 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
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 3546 3815 221 BellSouth.net Inc.
7029 2362 1042 210 Windstream Communications Inc
18566 2096 382 176 Covad Communications Co.
4766 1941 11088 658 Korea Telecom (KIX)
1785 1843 680 122 PaeTec Communications, Inc.
10620 1699 314 156 Types of queries are: POCs, o
17974 1627 511 36 PT Telekomunikasi Indonesia
4323 1623 1094 389 tw telecom holdings, inc.
7545 1611 303 87 TPG Internet Pty Ltd
20115 1594 1546 620 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 2362 2152 Windstream Communications Inc
18566 2096 1920 Covad Communications Co.
1785 1843 1721 PaeTec Communications, Inc.
17974 1627 1591 PT Telekomunikasi Indonesia
10620 1699 1543 Types of queries are: POCs, o
7545 1611 1524 TPG Internet Pty Ltd
8402 1480 1467 Corbina telecom
28573 1458 1388 Types of queries are: POCs, o
4755 1534 1360 TATA Communications formerly
22773 1457 1357 Cox Communications Inc.
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
41.222.79.0/24 36938 >>UNKNOWN<<
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 /14:807 /15:1422 /16:11980 /17:6051 /18:10023
/19:20032 /20:27481 /21:27432 /22:36775 /23:34827 /24:194872
/25:12 /26:20 /27:21 /28:155 /29:126 /30:63
/31:0 /32:131
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2185 3546 BellSouth.net Inc.
18566 2046 2096 Covad Communications Co.
7029 2016 2362 Windstream Communications Inc
10620 1594 1699 Types of queries are: POCs, o
8402 1456 1480 Corbina telecom
30036 1351 1390 Mediacom Communications Corp
11492 1118 1155 CABLE ONE, INC.
1785 1056 1843 PaeTec Communications, Inc.
7011 1050 1168 Frontier Communications of Am
22773 945 1457 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 2:473 4:15 5:1 6:3 8:357
12:1951 13:1 14:529 15:11 16:3 17:7
20:9 23:59 24:1675 27:966 31:618 32:60
33:3 34:2 36:4 38:752 40:110 41:2692
42:53 44:3 46:1008 47:3 49:293 50:434
52:13 55:7 56:2 57:39 58:838 59:490
60:360 61:1016 62:1088 63:1954 64:4020 65:2305
66:4261 67:1982 68:1147 69:3198 70:878 71:382
72:1805 74:2571 75:391 76:317 77:878 78:868
79:454 80:1132 81:837 82:508 83:529 84:618
85:1120 86:410 87:891 88:356 89:1603 90:238
91:4232 92:518 93:1536 94:1308 95:1065 96:428
97:284 98:925 99:37 101:100 103:398 106:70
107:78 108:72 109:1054 110:640 111:788 112:326
113:455 114:604 115:677 116:867 117:694 118:841
119:1212 120:337 121:681 122:1552 123:1015 124:1295
125:1306 128:209 129:177 130:158 131:621 132:138
133:21 134:211 135:54 136:211 137:137 138:286
139:120 140:466 141:307 142:372 143:417 144:490
145:63 146:451 147:225 148:617 149:266 150:160
151:192 152:445 153:178 154:6 155:388 156:205
157:324 158:154 159:415 160:328 161:204 162:338
163:163 164:507 165:368 166:537 167:437 168:733
169:144 170:871 171:85 172:4 173:1712 174:670
175:405 176:285 177:368 178:1066 180:1118 181:36
182:638 183:208 184:369 185:1 186:1302 187:706
188:948 189:870 190:5123 192:5887 193:5039 194:3552
195:3112 196:1218 197:163 198:3573 199:4128 200:5447
201:1686 202:8287 203:8391 204:4228 205:2342 206:2581
207:2760 208:4009 209:3540 210:2637 211:1450 212:2092
213:1779 214:790 215:95 216:4895 217:1598 218:555
219:337 220:1210 221:497 222:295 223:265
End of report