The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Monday, November 11, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Tue 12 Nov, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/hk/

Analysis Summary
----------------

BGP routing table entries examined: 467890
Prefixes after maximum aggregation: 188137
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234190
Total ASes present in the Internet Routing Table: 45329
Prefixes per ASN: 10.32
Origin-only ASes present in the Internet Routing Table: 35361
Origin ASes announcing only one prefix: 16285
Transit ASes present in the Internet Routing Table: 5843
Transit-only ASes present in the Internet Routing Table: 154
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 35618
Unregistered ASNs in the Routing Table: 5240
Number of 32-bit ASNs allocated by the RIRs: 5331
Number of 32-bit ASNs visible in the Routing Table: 4125
Prefixes from 32-bit ASNs in the Routing Table: 12867
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1027
Number of addresses announced to Internet: 2648210432
Equivalent to 157 /8s, 216 /16s and 124 /24s
Percentage of available address space announced: 71.5
Percentage of allocated address space announced: 71.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.1
Total number of prefixes smaller than registry allocations: 162263

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 109273
Total APNIC prefixes after maximum aggregation: 33194
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 111427
Unique aggregates announced from the APNIC address blocks: 47648
APNIC Region origin ASes present in the Internet Routing Table: 4852
APNIC Prefixes per ASN: 22.97
APNIC Region origin ASes announcing only one prefix: 1240
APNIC Region transit ASes present in the Internet Routing Table: 811
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 736
Number of APNIC addresses announced to Internet: 724221184
Equivalent to 43 /8s, 42 /16s and 189 /24s
Percentage of available APNIC address space announced: 84.6

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 162174
Total ARIN prefixes after maximum aggregation: 81346
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163146
Unique aggregates announced from the ARIN address blocks: 75866
ARIN Region origin ASes present in the Internet Routing Table: 15900
ARIN Prefixes per ASN: 10.26
ARIN Region origin ASes announcing only one prefix: 6010
ARIN Region transit ASes present in the Internet Routing Table: 1626
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 21
Number of ARIN region 32-bit ASNs visible in the Routing Table: 34
Number of ARIN addresses announced to Internet: 1072863232
Equivalent to 63 /8s, 242 /16s and 152 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 118808
Total RIPE prefixes after maximum aggregation: 61004
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122494
Unique aggregates announced from the RIPE address blocks: 78898
RIPE Region origin ASes present in the Internet Routing Table: 17485
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8286
RIPE Region transit ASes present in the Internet Routing Table: 2806
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2460
Number of RIPE addresses announced to Internet: 656633088
Equivalent to 39 /8s, 35 /16s and 109 /24s
Percentage of available RIPE address space announced: 95.5

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52290
Total LACNIC prefixes after maximum aggregation: 9859
LACNIC Deaggregation factor: 5.30
Prefixes being announced from the LACNIC address blocks: 57377
Unique aggregates announced from the LACNIC address blocks: 26923
LACNIC Region origin ASes present in the Internet Routing Table: 2034
LACNIC Prefixes per ASN: 28.21
LACNIC Region origin ASes announcing only one prefix: 551
LACNIC Region transit ASes present in the Internet Routing Table: 392
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 889
Number of LACNIC addresses announced to Internet: 142767360
Equivalent to 8 /8s, 130 /16s and 117 /24s
Percentage of available LACNIC address space announced: 85.1

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11785
Total AfriNIC prefixes after maximum aggregation: 2590
AfriNIC Deaggregation factor: 4.55
Prefixes being announced from the AfriNIC address blocks: 12418
Unique aggregates announced from the AfriNIC address blocks: 4022
AfriNIC Region origin ASes present in the Internet Routing Table: 678
AfriNIC Prefixes per ASN: 18.32
AfriNIC Region origin ASes announcing only one prefix: 198
AfriNIC Region transit ASes present in the Internet Routing Table: 135
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 48081920
Equivalent to 2 /8s, 221 /16s and 172 /24s
Percentage of available AfriNIC address space announced: 47.8

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2714 903 89 PT TELEKOMUNIKASI INDONESIA
4766 2136 11550 644 Korea Telecom (KIX)
7545 2102 319 111 TPG Internet Pty Ltd
4755 1790 392 190 TATA Communications formerly
9829 1541 1244 45 BSNL National Internet Backbo
4808 1281 2188 368 CNCGROUP IP network: China169
9583 1245 94 510 Sify Limited
9498 1212 309 74 BHARTI Airtel Ltd.
7552 1158 1080 13 Vietel Corporation
24560 1094 380 163 Bharti Airtel Ltd., Telemedia

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3054 3688 56 BellSouth.net Inc.
22773 2192 2939 138 Cox Communications, Inc.
18566 2056 379 178 MegaPath Corporation
1785 2028 683 126 PaeTec Communications, Inc.
20115 1681 1652 606 Charter Communications
4323 1645 1098 419 Time Warner Telecom
701 1507 11147 785 MCI Communications Services,
30036 1386 313 577 Mediacom Communications Corp
7018 1346 17795 880 AT&T WorldNet Services
6983 1294 756 579 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1960 544 17 OJSC "Vimpelcom"
34984 1362 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1136 419 865 Akamai Technologies European
31148 1005 44 18 FreeNet ISP
13188 886 99 48 TOV "Bank-Inform"
6849 862 356 30 JSC UKRTELECOM,
8551 782 370 41 Bezeq International
6830 774 2328 426 UPC Distribution Services
12479 677 798 55 Uni2 Autonomous System
35228 542 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3450 1788 85 NET Servicos de Comunicao S.A
10620 2648 429 233 >>UNKNOWN<<
7303 1728 1150 231 Telecom Argentina Stet-France
18881 1552 908 20 Global Village Telecom
8151 1353 2851 413 UniNet S.A. de C.V.
11830 866 364 15 Instituto Costarricense de El
27947 819 94 91 Telconet S.A
6503 787 434 61 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A
26615 749 1749 26 Tim Brasil S.A.

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1864 112 5 Sudanese Mobile Telephone (ZA
24863 895 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 416 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
3741 256 921 214 The Internet Solution
36992 229 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
15706 221 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3450 1788 85 NET Servicos de Comunicao S.A
6389 3054 3688 56 BellSouth.net Inc.
17974 2714 903 89 PT TELEKOMUNIKASI INDONESIA
10620 2648 429 233 >>UNKNOWN<<
22773 2192 2939 138 Cox Communications, Inc.
4766 2136 11550 644 Korea Telecom (KIX)
7545 2102 319 111 TPG Internet Pty Ltd
18566 2056 379 178 MegaPath Corporation
1785 2028 683 126 PaeTec Communications, Inc.
8402 1960 544 17 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3054 2998 BellSouth.net Inc.
17974 2714 2625 PT TELEKOMUNIKASI INDONESIA
10620 2648 2415 >>UNKNOWN<<
22773 2192 2054 Cox Communications, Inc.
7545 2102 1991 TPG Internet Pty Ltd
8402 1960 1943 OJSC "Vimpelcom"
1785 2028 1902 PaeTec Communications, Inc.
18566 2056 1878 MegaPath Corporation
36998 1864 1859 Sudanese Mobile Telephone (ZA
4755 1790 1600 TATA Communications formerly

Complete listing at http://thyme.rand.apnic.net/hk/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio

Complete listing at http://thyme.rand.apnic.net/hk/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

Complete listing at http://thyme.rand.apnic.net/hk/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.90.192.0/18 3257 Tiscali Intl Network
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:30 /11:92 /12:253
/13:474 /14:917 /15:1602 /16:12764 /17:6709 /18:11196
/19:23028 /20:32707 /21:35464 /22:49743 /23:43648 /24:249204
/25:3 /26:5 /27:9 /28:7 /29:6 /30:0
/31:0 /32:1

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2010 2056 MegaPath Corporation
36998 1829 1864 Sudanese Mobile Telephone (ZA
6389 1707 3054 BellSouth.net Inc.
8402 1626 1960 OJSC "Vimpelcom"
22773 1455 2192 Cox Communications, Inc.
30036 1231 1386 Mediacom Communications Corp
11492 1189 1227 Cable One
1785 1079 2028 PaeTec Communications, Inc.
6983 1034 1294 ITC^Deltacom
22561 968 1245 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/hk/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:898 2:857 3:3 4:17 5:1022 6:21
8:616 12:1898 13:3 14:895 15:11 16:3
17:18 18:19 20:21 23:544 24:1743 27:1637
31:1492 32:45 33:2 34:5 36:84 37:1917
38:919 39:5 40:178 41:3256 42:244 44:14
46:2016 47:10 49:688 50:829 52:12 54:42
55:5 56:4 57:26 58:1089 59:571 60:377
61:1465 62:1222 63:1983 64:4349 65:2340 66:4153
67:2113 68:1109 69:3277 70:871 71:490 72:2044
74:2556 75:326 76:296 77:1160 78:1050 79:666
80:1297 81:1035 82:655 83:631 84:584 85:1250
86:411 87:1005 88:559 89:1585 90:150 91:5637
92:622 93:1608 94:2037 95:1639 96:510 97:346
98:1044 99:39 100:30 101:628 103:3562 105:527
106:134 107:213 108:534 109:1939 110:973 111:1110
112:590 113:806 114:739 115:1044 116:999 117:832
118:1186 119:1279 120:336 121:749 122:1841 123:1258
124:1341 125:1432 128:673 129:230 130:330 131:664
132:364 133:157 134:554 135:72 136:284 137:246
138:350 139:177 140:197 141:331 142:541 143:402
144:497 145:89 146:527 147:405 148:762 149:368
150:138 151:587 152:411 153:206 154:52 155:502
156:292 157:420 158:279 159:690 160:360 161:457
162:839 163:226 164:629 165:586 166:258 167:633
168:1043 169:125 170:1119 171:182 172:27 173:1594
174:685 175:521 176:1294 177:2425 178:1962 179:216
180:1581 181:842 182:1344 183:462 184:668 185:1006
186:2642 187:1466 188:1865 189:1241 190:7136 192:7036
193:5418 194:4044 195:3365 196:1327 197:1059 198:4736
199:5478 200:6077 201:2461 202:8956 203:8886 204:4527
205:2649 206:2841 207:2830 208:4010 209:3659 210:2953
211:1558 212:2151 213:1994 214:893 215:91 216:5410
217:1683 218:623 219:321 220:1273 221:581 222:327
223:504

End of report
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