Routing Table Report 08:00 +10GMT Tue 27 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 368088
Prefixes after maximum aggregation: 166350
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 185179
Total ASes present in the Internet Routing Table: 37270
Prefixes per ASN: 9.88
Origin-only ASes present in the Internet Routing Table: 32168
Origin ASes announcing only one prefix: 15483
Transit ASes present in the Internet Routing Table: 5102
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 31
Max AS path prepend of ASN (51310) 23
Prefixes from unregistered ASNs in the Routing Table: 2686
Unregistered ASNs in the Routing Table: 852
Number of 32-bit ASNs allocated by the RIRs: 1771
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3284
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 93
Number of addresses announced to Internet: 2497495040
Equivalent to 148 /8s, 220 /16s and 192 /24s
Percentage of available address space announced: 67.4
Percentage of allocated address space announced: 67.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.4
Total number of prefixes smaller than registry allocations: 152462
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89002
Total APNIC prefixes after maximum aggregation: 29443
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86469
Unique aggregates announced from the APNIC address blocks: 38238
APNIC Region origin ASes present in the Internet Routing Table: 4518
APNIC Prefixes per ASN: 19.14
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 687
Average APNIC Region AS path length visible: 3.9
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: 627546880
Equivalent to 37 /8s, 103 /16s and 155 /24s
Percentage of available APNIC address space announced: 79.6
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: 142513
Total ARIN prefixes after maximum aggregation: 73358
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114941
Unique aggregates announced from the ARIN address blocks: 48149
ARIN Region origin ASes present in the Internet Routing Table: 14612
ARIN Prefixes per ASN: 7.87
ARIN Region origin ASes announcing only one prefix: 5647
ARIN Region transit ASes present in the Internet Routing Table: 1489
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: 805022720
Equivalent to 47 /8s, 251 /16s and 172 /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: 89722
Total RIPE prefixes after maximum aggregation: 50230
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82461
Unique aggregates announced from the RIPE address blocks: 53960
RIPE Region origin ASes present in the Internet Routing Table: 15961
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 7971
RIPE Region transit ASes present in the Internet Routing Table: 2496
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 489789952
Equivalent to 29 /8s, 49 /16s and 154 /24s
Percentage of available RIPE address space announced: 78.9
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: 34341
Total LACNIC prefixes after maximum aggregation: 7676
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33802
Unique aggregates announced from the LACNIC address blocks: 17892
LACNIC Region origin ASes present in the Internet Routing Table: 1513
LACNIC Prefixes per ASN: 22.34
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 261
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: 89240320
Equivalent to 5 /8s, 81 /16s and 179 /24s
Percentage of available LACNIC address space announced: 59.1
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: 8517
Total AfriNIC prefixes after maximum aggregation: 2007
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6589
Unique aggregates announced from the AfriNIC address blocks: 1987
AfriNIC Region origin ASes present in the Internet Routing Table: 486
AfriNIC Prefixes per ASN: 13.56
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 106
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: 27380480
Equivalent to 1 /8s, 161 /16s and 203 /24s
Percentage of available AfriNIC address space announced: 40.8
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 1938 11040 649 Korea Telecom (KIX)
17974 1716 519 33 PT Telekomunikasi Indonesia
7545 1604 303 86 TPG Internet Pty Ltd
4755 1536 638 174 TATA Communications formerly
24560 1181 337 193 Bharti Airtel Ltd., Telemedia
9829 1159 989 28 National Internet Backbone
9583 1086 80 502 Sify Limited
7552 989 1062 11 Vietel Corporation
4808 958 2003 270 CNCGROUP IP network China169
18101 954 118 142 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 3562 3817 227 BellSouth.net Inc.
18566 1913 365 237 Covad Communications Co.
1785 1829 680 123 PaeTec Communications, Inc.
7029 1742 1033 206 Windstream Communications Inc
4323 1623 1098 392 tw telecom holdings, inc.
20115 1596 1543 633 Charter Communications
22773 1457 2907 99 Cox Communications Inc.
30036 1419 263 676 Mediacom Communications Corp
19262 1395 4728 400 Verizon Online LLC
7018 1348 7082 878 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 1030 352 13 Corbina telecom
34984 571 108 181 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
20940 537 180 415 Akamai Technologies European
6830 532 1813 325 UPC Broadband
3320 493 8167 381 Deutsche Telekom AG
3292 478 2082 408 TDC Data Networks
12479 474 594 8 France Telecom Espana SA
8866 461 133 26 Bulgarian Telecommunication C
29049 424 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 1666 308 158 Types of queries are: POCs, o
28573 1360 1013 70 Types of queries are: POCs, o
8151 1278 2796 347 Uninet S.A. de C.V.
7303 1162 681 173 Telecom Argentina S.A.
14420 736 58 88 CORPORACION NACIONAL DE TELEC
22047 580 322 17 Types of queries are: POCs, o
6503 568 450 70 Axtel, S.A.B. de C.V.
27947 561 56 76 Telconet S.A
3816 537 232 99 Types of queries are: POCs, o
11172 516 101 93 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 809 147 41 LINKdotNET AS number
8452 713 445 11 TEDATA
15475 450 74 8 Nile Online
36992 292 415 14 Etisalat MISR
3741 274 938 229 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
12258 199 28 59 Vodacom Internet Company
29571 191 17 11 Ci Telecom Autonomous system
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 3562 3817 227 BellSouth.net Inc.
23456 3284 776 1775 32-bit ASN transition
4766 1938 11040 649 Korea Telecom (KIX)
18566 1913 365 237 Covad Communications Co.
1785 1829 680 123 PaeTec Communications, Inc.
7029 1742 1033 206 Windstream Communications Inc
17974 1716 519 33 PT Telekomunikasi Indonesia
10620 1666 308 158 Types of queries are: POCs, o
4323 1623 1098 392 tw telecom holdings, inc.
7545 1604 303 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1829 1706 PaeTec Communications, Inc.
17974 1716 1683 PT Telekomunikasi Indonesia
18566 1913 1676 Covad Communications Co.
7029 1742 1536 Windstream Communications Inc
7545 1604 1518 TPG Internet Pty Ltd
23456 3284 1509 32-bit ASN transition
10620 1666 1508 Types of queries are: POCs, o
4755 1536 1362 TATA Communications formerly
22773 1457 1358 Cox Communications Inc.
28573 1360 1290 Types of queries are: POCs, o
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.
26973 UNALLOCATED 12.39.152.0/24 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 65535 Internet Assigned Numbers Aut
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 /12:236
/13:464 /14:800 /15:1417 /16:11956 /17:5966 /18:9989
/19:19911 /20:27005 /21:27022 /22:36259 /23:34514 /24:191884
/25:12 /26:20 /27:24 /28:155 /29:126 /30:59
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2197 3562 BellSouth.net Inc.
18566 1869 1913 Covad Communications Co.
23456 1562 3284 32-bit ASN transition
10620 1561 1666 Types of queries are: POCs, o
7029 1422 1742 Windstream Communications Inc
30036 1376 1419 Mediacom Communications Corp
11492 1112 1149 CABLE ONE, INC.
7011 1058 1183 Frontier Communications of Am
1785 1053 1829 PaeTec Communications, Inc.
8402 977 1030 Corbina telecom
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:382 2:311 4:15 5:1 6:3 8:349
12:1958 13:1 14:538 15:13 16:3 17:8
20:9 23:35 24:1683 27:939 31:540 32:59
33:4 34:2 36:4 38:739 40:108 41:2601
42:48 44:3 46:985 47:3 49:262 50:424
52:13 54:2 55:4 56:2 57:36 58:829
59:490 60:374 61:1014 62:1091 63:1934 64:4019
65:2304 66:3952 67:1958 68:1111 69:3189 70:811
71:377 72:1855 74:2457 75:348 76:340 77:873
78:812 79:488 80:1117 81:846 82:508 83:522
84:621 85:1083 86:416 87:876 88:353 89:1585
90:267 91:4100 92:532 93:1287 94:1289 95:899
96:430 97:276 98:924 99:37 101:85 103:315
106:85 107:53 108:77 109:1027 110:637 111:785
112:314 113:426 114:556 115:666 116:867 117:677
118:856 119:1192 120:332 121:664 122:1603 123:1004
124:1301 125:1336 128:206 129:172 130:159 131:580
132:116 133:21 134:207 135:54 136:211 137:134
138:288 139:116 140:472 141:287 142:370 143:404
144:483 145:59 146:465 147:215 148:618 149:256
150:145 151:191 152:443 153:177 154:5 155:395
156:202 157:328 158:145 159:394 160:323 161:195
162:337 163:165 164:506 165:370 166:534 167:432
168:742 169:144 170:862 171:83 172:1 173:1642
174:596 175:401 176:215 177:285 178:1026 180:1017
181:30 182:614 183:220 184:366 185:1 186:1466
187:667 188:921 189:850 190:5131 192:5863 193:5013
194:3523 195:3074 196:1249 197:176 198:3537 199:4089
200:5418 201:1632 202:8261 203:8360 204:4180 205:2330
206:2584 207:2750 208:4026 209:3432 210:2631 211:1453
212:2077 213:1776 214:769 215:75 216:4867 217:1606
218:553 219:338 220:1189 221:493 222:304 223:257
End of report
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