Routing Table Report 08:00 +10GMT Tue 23 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 362227
Prefixes after maximum aggregation: 164688
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182636
Total ASes present in the Internet Routing Table: 37065
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 31985
Origin ASes announcing only one prefix: 15380
Transit ASes present in the Internet Routing Table: 5080
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: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2473
Unregistered ASNs in the Routing Table: 717
Number of 32-bit ASNs allocated by the RIRs: 1669
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3107
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 108
Number of addresses announced to Internet: 2486982912
Equivalent to 148 /8s, 60 /16s and 89 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 149615
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87679
Total APNIC prefixes after maximum aggregation: 29149
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 85123
Unique aggregates announced from the APNIC address blocks: 37882
APNIC Region origin ASes present in the Internet Routing Table: 4489
APNIC Prefixes per ASN: 18.96
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 683
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: 624037120
Equivalent to 37 /8s, 50 /16s and 13 /24s
Percentage of available APNIC address space announced: 79.1
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: 140962
Total ARIN prefixes after maximum aggregation: 72783
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113191
Unique aggregates announced from the ARIN address blocks: 47106
ARIN Region origin ASes present in the Internet Routing Table: 14532
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5603
ARIN Region transit ASes present in the Internet Routing Table: 1458
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803835392
Equivalent to 47 /8s, 233 /16s and 142 /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: 88007
Total RIPE prefixes after maximum aggregation: 49715
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81183
Unique aggregates announced from the RIPE address blocks: 53490
RIPE Region origin ASes present in the Internet Routing Table: 15893
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7921
RIPE Region transit ASes present in the Internet Routing Table: 2503
Average RIPE Region AS path length visible: 3.5
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: 487772160
Equivalent to 29 /8s, 18 /16s and 208 /24s
Percentage of available RIPE address space announced: 78.6
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: 33464
Total LACNIC prefixes after maximum aggregation: 7544
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 32879
Unique aggregates announced from the LACNIC address blocks: 17318
LACNIC Region origin ASes present in the Internet Routing Table: 1490
LACNIC Prefixes per ASN: 22.07
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 265
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: 87641344
Equivalent to 5 /8s, 57 /16s and 77 /24s
Percentage of available LACNIC address space announced: 58.0
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: 8310
Total AfriNIC prefixes after maximum aggregation: 2067
AfriNIC Deaggregation factor: 4.02
Prefixes being announced from the AfriNIC address blocks: 6407
Unique aggregates announced from the AfriNIC address blocks: 2072
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 26838784
Equivalent to 1 /8s, 153 /16s and 135 /24s
Percentage of available AfriNIC address space announced: 40.0
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 1935 11038 645 Korea Telecom (KIX)
17974 1577 516 31 PT Telekomunikasi Indonesia
7545 1574 301 84 TPG Internet Pty Ltd
4755 1525 374 164 TATA Communications formerly
24560 1198 336 189 Bharti Airtel Ltd., Telemedia
9829 1153 989 28 National Internet Backbone
9583 1076 79 496 Sify Limited
17488 1007 188 142 Hathway IP Over Cable Interne
7552 1001 1062 11 Vietel Corporation
4808 951 2004 272 CNCGROUP IP network China169
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 3583 3817 227 BellSouth.net Inc.
18566 1910 364 238 Covad Communications Co.
1785 1822 681 123 PaeTec Communications, Inc.
4323 1615 1101 398 tw telecom holdings, inc.
20115 1585 1537 630 Charter Communications
7029 1567 1029 207 Windstream Communications Inc
22773 1438 2903 97 Cox Communications Inc.
19262 1405 4778 395 Verizon Online LLC
7018 1363 7084 893 AT&T Services, Inc.
2386 1231 516 891 AT&T Data Communications Serv
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
34984 541 107 183 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
6830 511 1788 317 UPC Broadband
20940 479 139 372 Akamai Technologies European
3292 469 2080 404 TDC Data Networks
8866 457 133 26 Bulgarian Telecommunication C
12479 456 593 7 France Telecom Espana SA
3320 424 8151 370 Deutsche Telekom AG
29049 423 31 57 AzerSat LLC.
8551 405 355 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 1591 294 163 Types of queries are: POCs, o
8151 1261 2749 347 Uninet S.A. de C.V.
28573 1259 996 67 Types of queries are: POCs, o
7303 1046 578 163 Telecom Argentina S.A.
14420 707 56 86 CORPORACION NACIONAL DE TELEC
6503 691 450 76 Axtel, S.A.B. de C.V.
22047 578 322 17 Types of queries are: POCs, o
3816 533 232 97 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia S.A
27947 508 54 49 Telconet S.A
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 807 145 56 LINKdotNET AS number
8452 639 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
33776 226 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 195 28 62 Vodacom Internet Company
24835 179 78 10 RAYA Telecom - Egypt
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 3583 3817 227 BellSouth.net Inc.
23456 3107 740 1672 32-bit ASN transition
4766 1935 11038 645 Korea Telecom (KIX)
18566 1910 364 238 Covad Communications Co.
1785 1822 681 123 PaeTec Communications, Inc.
4323 1615 1101 398 tw telecom holdings, inc.
10620 1591 294 163 Types of queries are: POCs, o
20115 1585 1537 630 Charter Communications
17974 1577 516 31 PT Telekomunikasi Indonesia
7545 1574 301 84 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 1822 1699 PaeTec Communications, Inc.
18566 1910 1672 Covad Communications Co.
17974 1577 1546 PT Telekomunikasi Indonesia
7545 1574 1490 TPG Internet Pty Ltd
23456 3107 1435 32-bit ASN transition
10620 1591 1428 Types of queries are: POCs, o
4755 1525 1361 TATA Communications formerly
7029 1567 1360 Windstream Communications Inc
22773 1438 1341 Cox Communications Inc.
4766 1935 1290 Korea Telecom (KIX)
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 /12:234
/13:460 /14:796 /15:1416 /16:11907 /17:5905 /18:9923
/19:19635 /20:26504 /21:26557 /22:35237 /23:33853 /24:189143
/25:12 /26:20 /27:23 /28:159 /29:111 /30:59
/31:0 /32:133
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2215 3583 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1525 3107 32-bit ASN transition
10620 1486 1591 Types of queries are: POCs, o
7029 1251 1567 Windstream Communications Inc
11492 1105 1151 CABLE ONE, INC.
7011 1057 1160 Frontier Communications of Am
1785 1052 1822 PaeTec Communications, Inc.
22773 933 1438 Cox Communications Inc.
30036 895 919 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:358 2:44 4:15 5:1 6:3 8:344
12:1955 13:1 14:507 15:15 16:3 17:5
20:10 23:30 24:1679 27:869 31:514 32:59
33:4 34:2 36:4 38:730 40:107 41:2439
42:46 44:3 46:1062 47:3 49:219 50:410
52:13 54:2 55:8 56:2 57:34 58:817
59:495 60:374 61:1015 62:1084 63:1925 64:3965
65:2299 66:3909 67:1917 68:1105 69:3091 70:770
71:371 72:1843 74:2429 75:328 76:337 77:862
78:708 79:489 80:1123 81:827 82:499 83:479
84:688 85:1079 86:495 87:841 88:337 89:1533
90:224 91:4056 92:525 93:1138 94:1342 95:871
96:413 97:267 98:924 99:37 101:74 103:219
106:79 107:34 108:75 109:1009 110:634 111:726
112:299 113:410 114:557 115:677 116:977 117:656
118:836 119:1178 120:315 121:662 122:1601 123:978
124:1280 125:1269 128:207 129:169 130:165 131:578
132:110 133:21 134:205 135:54 136:188 137:135
138:296 139:114 140:467 141:277 142:369 143:418
144:486 145:59 146:454 147:220 148:629 149:251
150:188 151:188 152:439 153:185 154:4 155:401
156:197 157:299 158:135 159:391 160:315 161:198
162:325 163:156 164:515 165:365 166:531 167:432
168:738 169:151 170:841 171:82 172:1 173:1646
174:621 175:382 176:156 177:221 178:999 180:928
181:25 182:517 183:241 184:338 185:1 186:1366
187:725 188:935 189:903 190:5109 192:5881 193:4987
194:3509 195:3044 196:1233 197:143 198:3535 199:4003
200:5441 201:1479 202:8193 203:8345 204:4177 205:2303
206:2586 207:2730 208:3982 209:3380 210:2603 211:1452
212:2101 213:1766 214:753 215:70 216:4783 217:1607
218:541 219:349 220:1182 221:496 222:310 223:241
End of report
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